* [syzbot] upstream test error: WARNING in __do_kernel_fault
@ 2021-09-06 9:55 syzbot
2021-09-17 8:20 ` Dmitry Vyukov
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2021-09-06 9:55 UTC (permalink / raw)
To: linux-fsdevel, linux-kernel, syzkaller-bugs, viro
Hello,
syzbot found the following issue on:
HEAD commit: f1583cb1be35 Merge tag 'linux-kselftest-next-5.15-rc1' of ..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17756315300000
kernel config: https://syzkaller.appspot.com/x/.config?x=5fe535c85e8d7384
dashboard link: https://syzkaller.appspot.com/bug?extid=e6bda7e03e329ed0b1db
compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
userspace arch: arm64
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000308 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : ffff00007fbbb9c8 x4 : 0000000000015ff5 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640ca ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000032d x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640cb ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000352 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640cc ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000377 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640cd ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000039c x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640ce ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000003c1 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640cf ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000003e6 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d0 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000040b x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d1 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000430 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d2 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000455 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d3 ]---
__do_kernel_fault: 65272 callbacks suppressed
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000047b x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : ffff00007fbbb9c8 x4 : 0000000000015ff5 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d4 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000004a0 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d5 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000004c5 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d6 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000004ea x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d7 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000050f x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d8 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000534 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640d9 ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 0000000000000559 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640da ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 000000000000057e x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640db ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000005a3 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640dc ]---
------------[ cut here ]------------
Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
Modules linked in:
CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
sp : ffff80001267b980
x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
x14: 756166206e6f6974 x13: 00000000000005c8 x12: ffff80001267b680
x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
Call trace:
__do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
do_bad_area arch/arm64/mm/fault.c:466 [inline]
do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
__entry_tramp_text_end+0xdfc/0x3000
d_lookup+0x44/0x70 fs/dcache.c:2370
lookup_dcache+0x24/0x84 fs/namei.c:1520
__lookup_hash+0x24/0xd0 fs/namei.c:1543
kern_path_locked+0x90/0x10c fs/namei.c:2567
handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
handle drivers/base/devtmpfs.c:382 [inline]
devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
kthread+0x150/0x15c kernel/kthread.c:319
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
---[ end trace ae975648337640dd ]---
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] upstream test error: WARNING in __do_kernel_fault
2021-09-06 9:55 [syzbot] upstream test error: WARNING in __do_kernel_fault syzbot
@ 2021-09-17 8:20 ` Dmitry Vyukov
2021-09-21 12:41 ` Will Deacon
0 siblings, 1 reply; 3+ messages in thread
From: Dmitry Vyukov @ 2021-09-17 8:20 UTC (permalink / raw)
To: syzbot, Linux ARM, Will Deacon
Cc: linux-fsdevel, linux-kernel, syzkaller-bugs, viro
On Mon, 6 Sept 2021 at 11:55, syzbot
<syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: f1583cb1be35 Merge tag 'linux-kselftest-next-5.15-rc1' of ..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=17756315300000
> kernel config: https://syzkaller.appspot.com/x/.config?x=5fe535c85e8d7384
> dashboard link: https://syzkaller.appspot.com/bug?extid=e6bda7e03e329ed0b1db
> compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
> userspace arch: arm64
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com
+Will, you added this WARNING in 42f91093b04333.
This now crashes periodically on syzbot.
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Not tainted 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000308 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : ffff00007fbbb9c8 x4 : 0000000000015ff5 x3 : 0000000000000001
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640ca ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000032d x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640cb ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000352 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640cc ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000377 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640cd ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000039c x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640ce ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000003c1 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640cf ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000003e6 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d0 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000040b x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d1 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000430 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d2 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000455 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d3 ]---
> __do_kernel_fault: 65272 callbacks suppressed
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000047b x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : ffff00007fbbb9c8 x4 : 0000000000015ff5 x3 : 0000000000000001
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d4 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000004a0 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d5 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000004c5 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d6 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000004ea x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d7 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000050f x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d8 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000534 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640d9 ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 0000000000000559 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640da ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 000000000000057e x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640db ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000005a3 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640dc ]---
> ------------[ cut here ]------------
> Ignoring spurious kernel translation fault at virtual address ffff00007b65e020
> WARNING: CPU: 0 PID: 22 at arch/arm64/mm/fault.c:365 __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> Modules linked in:
> CPU: 0 PID: 22 Comm: kdevtmpfs Tainted: G W 5.14.0-syzkaller-09284-gf1583cb1be35 #0
> Hardware name: linux,dummy-virt (DT)
> pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
> pc : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> lr : __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> sp : ffff80001267b980
> x29: ffff80001267b980 x28: f4ff0000029a0000 x27: 0000000000000000
> x26: 0000000000000000 x25: fdff000002fa0d00 x24: ffff80001267bcb8
> x23: 0000000060400009 x22: ffff00007b65e020 x21: 0000000000000025
> x20: ffff80001267ba50 x19: 0000000097c48007 x18: 00000000fffffffd
> x17: 6666207373657264 x16: 6461206c61757472 x15: 697620746120746c
> x14: 756166206e6f6974 x13: 00000000000005c8 x12: ffff80001267b680
> x11: ffff8000122cd1e0 x10: 00000000ffffe000 x9 : ffff8000122cd1e0
> x8 : ffff80001221d1e0 x7 : ffff8000122cd1e0 x6 : 0000000000000000
> x5 : 0000000000000000 x4 : 0000000000015ff5 x3 : 0000000000000000
> x2 : 0000000000000000 x1 : 0000000000000000 x0 : f4ff0000029a0000
> Call trace:
> __do_kernel_fault+0x170/0x1bc arch/arm64/mm/fault.c:365
> do_bad_area arch/arm64/mm/fault.c:466 [inline]
> do_translation_fault+0x58/0xc0 arch/arm64/mm/fault.c:682
> do_mem_abort+0x44/0xb4 arch/arm64/mm/fault.c:813
> el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:357
> el1h_64_sync_handler+0xb0/0xd0 arch/arm64/kernel/entry-common.c:408
> el1h_64_sync+0x78/0x7c arch/arm64/kernel/entry.S:567
> __entry_tramp_text_end+0xdfc/0x3000
> d_lookup+0x44/0x70 fs/dcache.c:2370
> lookup_dcache+0x24/0x84 fs/namei.c:1520
> __lookup_hash+0x24/0xd0 fs/namei.c:1543
> kern_path_locked+0x90/0x10c fs/namei.c:2567
> handle_remove+0x38/0x284 drivers/base/devtmpfs.c:312
> handle drivers/base/devtmpfs.c:382 [inline]
> devtmpfs_work_loop drivers/base/devtmpfs.c:395 [inline]
> devtmpfsd+0x8c/0xd0 drivers/base/devtmpfs.c:437
> kthread+0x150/0x15c kernel/kthread.c:319
> ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:756
> ---[ end trace ae975648337640dd ]---
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
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>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] upstream test error: WARNING in __do_kernel_fault
2021-09-17 8:20 ` Dmitry Vyukov
@ 2021-09-21 12:41 ` Will Deacon
0 siblings, 0 replies; 3+ messages in thread
From: Will Deacon @ 2021-09-21 12:41 UTC (permalink / raw)
To: Dmitry Vyukov
Cc: syzbot, Linux ARM, Will Deacon, linux-fsdevel, linux-kernel,
syzkaller-bugs, viro
On Fri, Sep 17, 2021 at 10:20:40AM +0200, Dmitry Vyukov wrote:
> On Mon, 6 Sept 2021 at 11:55, syzbot
> <syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com> wrote:
> >
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit: f1583cb1be35 Merge tag 'linux-kselftest-next-5.15-rc1' of ..
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=17756315300000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=5fe535c85e8d7384
> > dashboard link: https://syzkaller.appspot.com/bug?extid=e6bda7e03e329ed0b1db
> > compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
> > userspace arch: arm64
> >
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com
>
> +Will, you added this WARNING in 42f91093b04333.
> This now crashes periodically on syzbot.
I'm still inclined to chalk this one down to a QEMU bug. We're not seeing it
anywhere else, and last time you looked at it I seem to remember that it
depended upon QEMU configuration [1].
Will
[1] https://lore.kernel.org/all/CAAeHK+wDz8aSLyjq1b=q3+HG9aJXxwYR6+gN_fTttMN5osM5gg@mail.gmail.com/
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-09-21 12:41 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-09-06 9:55 [syzbot] upstream test error: WARNING in __do_kernel_fault syzbot
2021-09-17 8:20 ` Dmitry Vyukov
2021-09-21 12:41 ` Will Deacon
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