* general protection fault in drain_workqueue
@ 2019-05-13 12:27 syzbot
2019-11-19 13:40 ` Andrey Konovalov
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2019-05-13 12:27 UTC (permalink / raw)
To: andreyknvl, davem, linux-kernel, linux-usb, netdev, petkan,
syzkaller-bugs
Hello,
syzbot found the following crash on:
HEAD commit: 43151d6c usb-fuzzer: main usb gadget fuzzer driver
git tree: https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=17022474a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=4183eeef650d1234
dashboard link: https://syzkaller.appspot.com/bug?extid=09139d1a5ed6b898e29d
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15752dc8a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+09139d1a5ed6b898e29d@syzkaller.appspotmail.com
pegasus 4-1:0.103: can't reset MAC
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN PTI
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.1.0-rc3-319004-g43151d6 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573
Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41
5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f
85 35 1e 00 00 49 81 7d 00 00 19 01 96 0f 84 e8 f5
RSP: 0018:ffff8880a8476e08 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff8880a8469880 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8880a8477160 R11: ffff8880a8469880 R12: 0000000000000000
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a1f740000 CR3: 0000000090bc0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
__mutex_lock_common kernel/locking/mutex.c:925 [inline]
__mutex_lock+0xfe/0x12b0 kernel/locking/mutex.c:1072
drain_workqueue+0x29/0x470 kernel/workqueue.c:2934
destroy_workqueue+0x23/0x6d0 kernel/workqueue.c:4320
pegasus_dec_workqueue drivers/net/usb/pegasus.c:1133 [inline]
pegasus_dec_workqueue drivers/net/usb/pegasus.c:1129 [inline]
pegasus_probe+0x1073/0x15e0 drivers/net/usb/pegasus.c:1228
usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
really_probe+0x2da/0xb10 drivers/base/dd.c:509
driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
__device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
__device_attach+0x223/0x3a0 drivers/base/dd.c:844
bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
device_add+0xad2/0x16e0 drivers/base/core.c:2106
usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2023
generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
really_probe+0x2da/0xb10 drivers/base/dd.c:509
driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
__device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
__device_attach+0x223/0x3a0 drivers/base/dd.c:844
bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
device_add+0xad2/0x16e0 drivers/base/core.c:2106
usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
hub_port_connect drivers/usb/core/hub.c:5089 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
port_event drivers/usb/core/hub.c:5350 [inline]
hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
process_scheduled_works kernel/workqueue.c:2331 [inline]
worker_thread+0x7b0/0xe20 kernel/workqueue.c:2417
kthread+0x313/0x420 kernel/kthread.c:253
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 01015c397d4bdcc4 ]---
RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573
Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41
5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f
85 35 1e 00 00 49 81 7d 00 00 19 01 96 0f 84 e8 f5
RSP: 0018:ffff8880a8476e08 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff8880a8469880 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8880a8477160 R11: ffff8880a8469880 R12: 0000000000000000
R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3a1f740000 CR3: 0000000090bc0000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: general protection fault in drain_workqueue
2019-05-13 12:27 general protection fault in drain_workqueue syzbot
@ 2019-11-19 13:40 ` Andrey Konovalov
0 siblings, 0 replies; 2+ messages in thread
From: Andrey Konovalov @ 2019-11-19 13:40 UTC (permalink / raw)
To: syzbot; +Cc: David S. Miller, LKML, USB list, netdev, petkan, syzkaller-bugs
On Mon, May 13, 2019 at 2:27 PM syzbot
<syzbot+09139d1a5ed6b898e29d@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 43151d6c usb-fuzzer: main usb gadget fuzzer driver
> git tree: https://github.com/google/kasan.git usb-fuzzer
> console output: https://syzkaller.appspot.com/x/log.txt?x=17022474a00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=4183eeef650d1234
> dashboard link: https://syzkaller.appspot.com/bug?extid=09139d1a5ed6b898e29d
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15752dc8a00000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+09139d1a5ed6b898e29d@syzkaller.appspotmail.com
>
> pegasus 4-1:0.103: can't reset MAC
> kasan: CONFIG_KASAN_INLINE enabled
> kasan: GPF could be caused by NULL-ptr deref or user memory access
> general protection fault: 0000 [#1] SMP KASAN PTI
> CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.1.0-rc3-319004-g43151d6 #6
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> Workqueue: usb_hub_wq hub_event
> RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573
> Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41
> 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f
> 85 35 1e 00 00 49 81 7d 00 00 19 01 96 0f 84 e8 f5
> RSP: 0018:ffff8880a8476e08 EFLAGS: 00010002
> RAX: dffffc0000000000 RBX: ffff8880a8469880 RCX: 0000000000000000
> RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000001
> RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
> R10: ffff8880a8477160 R11: ffff8880a8469880 R12: 0000000000000000
> R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
> FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007f3a1f740000 CR3: 0000000090bc0000 CR4: 00000000001406f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211
> __mutex_lock_common kernel/locking/mutex.c:925 [inline]
> __mutex_lock+0xfe/0x12b0 kernel/locking/mutex.c:1072
> drain_workqueue+0x29/0x470 kernel/workqueue.c:2934
> destroy_workqueue+0x23/0x6d0 kernel/workqueue.c:4320
> pegasus_dec_workqueue drivers/net/usb/pegasus.c:1133 [inline]
> pegasus_dec_workqueue drivers/net/usb/pegasus.c:1129 [inline]
> pegasus_probe+0x1073/0x15e0 drivers/net/usb/pegasus.c:1228
> usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
> really_probe+0x2da/0xb10 drivers/base/dd.c:509
> driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> device_add+0xad2/0x16e0 drivers/base/core.c:2106
> usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2023
> generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
> usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
> really_probe+0x2da/0xb10 drivers/base/dd.c:509
> driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
> __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
> bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
> __device_attach+0x223/0x3a0 drivers/base/dd.c:844
> bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
> device_add+0xad2/0x16e0 drivers/base/core.c:2106
> usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
> hub_port_connect drivers/usb/core/hub.c:5089 [inline]
> hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
> port_event drivers/usb/core/hub.c:5350 [inline]
> hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
> process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
> process_scheduled_works kernel/workqueue.c:2331 [inline]
> worker_thread+0x7b0/0xe20 kernel/workqueue.c:2417
> kthread+0x313/0x420 kernel/kthread.c:253
> ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
> Modules linked in:
> ---[ end trace 01015c397d4bdcc4 ]---
> RIP: 0010:__lock_acquire+0xadc/0x37c0 kernel/locking/lockdep.c:3573
> Code: 00 0f 85 c1 1d 00 00 48 81 c4 10 01 00 00 5b 5d 41 5c 41 5d 41 5e 41
> 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f
> 85 35 1e 00 00 49 81 7d 00 00 19 01 96 0f 84 e8 f5
> RSP: 0018:ffff8880a8476e08 EFLAGS: 00010002
> RAX: dffffc0000000000 RBX: ffff8880a8469880 RCX: 0000000000000000
> RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000001
> RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
> R10: ffff8880a8477160 R11: ffff8880a8469880 R12: 0000000000000000
> R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
> FS: 0000000000000000(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 00007f3a1f740000 CR3: 0000000090bc0000 CR4: 00000000001406f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>
>
> ---
> This bug 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 bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches
Hasn't happened for a while, probably got fixed.
#syz invalid
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-05-13 12:27 general protection fault in drain_workqueue syzbot
2019-11-19 13:40 ` Andrey Konovalov
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