From: syzbot <syzbot+5c04210f7c7f897c1e7f@syzkaller.appspotmail.com>
To: brauner@kernel.org, konishi.ryusuke@gmail.com,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-nilfs@vger.kernel.org, syzkaller-bugs@googlegroups.com,
viro@zeniv.linux.org.uk
Subject: [syzbot] [nilfs?] kernel BUG in end_buffer_async_write
Date: Sat, 03 Jun 2023 17:35:55 -0700 [thread overview]
Message-ID: <00000000000019a97c05fd42f8c8@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15ed0e7d280000
kernel config: https://syzkaller.appspot.com/x/.config?x=3da6c5d3e0a6c932
dashboard link: https://syzkaller.appspot.com/bug?extid=5c04210f7c7f897c1e7f
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1336c6b5280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12c0a5a5280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8a8c8e41a6b0/disk-51f269a6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ffc3737b4233/vmlinux-51f269a6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d49888e5beb1/bzImage-51f269a6.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/99d35f050c12/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5c04210f7c7f897c1e7f@syzkaller.appspotmail.com
------------[ cut here ]------------
kernel BUG at fs/buffer.c:391!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.4.0-rc4-syzkaller-00268-g51f269a6ecc7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:end_buffer_async_write+0x2db/0x340 fs/buffer.c:391
Code: 65 00 fe 4c 89 ff e8 d4 a3 ff ff be 08 00 00 00 48 89 c7 48 89 c3 e8 b4 31 e0 ff f0 80 4b 01 01 e9 07 fe ff ff e8 45 62 8d ff <0f> 0b e8 3e 62 8d ff 0f 0b 48 89 df e8 34 2b e0 ff e9 d9 fe ff ff
RSP: 0018:ffffc90000147c98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88801664bb80 RSI: ffffffff81f6e3fb RDI: 0000000000000001
RBP: ffff88806fbde570 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff81f6e120 R14: ffff88801e24ee00 R15: ffff88802a45a788
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42b45b0000 CR3: 000000007b04a000 CR4: 0000000000350ef0
Call Trace:
<TASK>
end_bio_bh_io_sync+0xde/0x130 fs/buffer.c:2730
bio_endio+0x5af/0x6c0 block/bio.c:1608
req_bio_endio block/blk-mq.c:761 [inline]
blk_update_request+0x5c5/0x1620 block/blk-mq.c:906
blk_mq_end_request+0x59/0x4c0 block/blk-mq.c:1023
lo_complete_rq+0x1c6/0x280 drivers/block/loop.c:370
blk_complete_reqs+0xad/0xe0 block/blk-mq.c:1101
__do_softirq+0x1d4/0x905 kernel/softirq.c:571
run_ksoftirqd kernel/softirq.c:939 [inline]
run_ksoftirqd+0x31/0x60 kernel/softirq.c:931
smpboot_thread_fn+0x659/0x9e0 kernel/smpboot.c:164
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:end_buffer_async_write+0x2db/0x340 fs/buffer.c:391
Code: 65 00 fe 4c 89 ff e8 d4 a3 ff ff be 08 00 00 00 48 89 c7 48 89 c3 e8 b4 31 e0 ff f0 80 4b 01 01 e9 07 fe ff ff e8 45 62 8d ff <0f> 0b e8 3e 62 8d ff 0f 0b 48 89 df e8 34 2b e0 ff e9 d9 fe ff ff
RSP: 0018:ffffc90000147c98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88801664bb80 RSI: ffffffff81f6e3fb RDI: 0000000000000001
RBP: ffff88806fbde570 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff81f6e120 R14: ffff88801e24ee00 R15: ffff88802a45a788
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42b45b0000 CR3: 000000007b04a000 CR4: 0000000000350ef0
---
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.
If the bug is already fixed, let syzbot know by replying with:
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If you want to change bug's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
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WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+5c04210f7c7f897c1e7f-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org>
To: brauner-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
konishi.ryusuke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org
Subject: [syzbot] [nilfs?] kernel BUG in end_buffer_async_write
Date: Sat, 03 Jun 2023 17:35:55 -0700 [thread overview]
Message-ID: <00000000000019a97c05fd42f8c8@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15ed0e7d280000
kernel config: https://syzkaller.appspot.com/x/.config?x=3da6c5d3e0a6c932
dashboard link: https://syzkaller.appspot.com/bug?extid=5c04210f7c7f897c1e7f
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1336c6b5280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12c0a5a5280000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8a8c8e41a6b0/disk-51f269a6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ffc3737b4233/vmlinux-51f269a6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d49888e5beb1/bzImage-51f269a6.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/99d35f050c12/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5c04210f7c7f897c1e7f-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org
------------[ cut here ]------------
kernel BUG at fs/buffer.c:391!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.4.0-rc4-syzkaller-00268-g51f269a6ecc7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:end_buffer_async_write+0x2db/0x340 fs/buffer.c:391
Code: 65 00 fe 4c 89 ff e8 d4 a3 ff ff be 08 00 00 00 48 89 c7 48 89 c3 e8 b4 31 e0 ff f0 80 4b 01 01 e9 07 fe ff ff e8 45 62 8d ff <0f> 0b e8 3e 62 8d ff 0f 0b 48 89 df e8 34 2b e0 ff e9 d9 fe ff ff
RSP: 0018:ffffc90000147c98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88801664bb80 RSI: ffffffff81f6e3fb RDI: 0000000000000001
RBP: ffff88806fbde570 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff81f6e120 R14: ffff88801e24ee00 R15: ffff88802a45a788
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42b45b0000 CR3: 000000007b04a000 CR4: 0000000000350ef0
Call Trace:
<TASK>
end_bio_bh_io_sync+0xde/0x130 fs/buffer.c:2730
bio_endio+0x5af/0x6c0 block/bio.c:1608
req_bio_endio block/blk-mq.c:761 [inline]
blk_update_request+0x5c5/0x1620 block/blk-mq.c:906
blk_mq_end_request+0x59/0x4c0 block/blk-mq.c:1023
lo_complete_rq+0x1c6/0x280 drivers/block/loop.c:370
blk_complete_reqs+0xad/0xe0 block/blk-mq.c:1101
__do_softirq+0x1d4/0x905 kernel/softirq.c:571
run_ksoftirqd kernel/softirq.c:939 [inline]
run_ksoftirqd+0x31/0x60 kernel/softirq.c:931
smpboot_thread_fn+0x659/0x9e0 kernel/smpboot.c:164
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:end_buffer_async_write+0x2db/0x340 fs/buffer.c:391
Code: 65 00 fe 4c 89 ff e8 d4 a3 ff ff be 08 00 00 00 48 89 c7 48 89 c3 e8 b4 31 e0 ff f0 80 4b 01 01 e9 07 fe ff ff e8 45 62 8d ff <0f> 0b e8 3e 62 8d ff 0f 0b 48 89 df e8 34 2b e0 ff e9 d9 fe ff ff
RSP: 0018:ffffc90000147c98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88801664bb80 RSI: ffffffff81f6e3fb RDI: 0000000000000001
RBP: ffff88806fbde570 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff81f6e120 R14: ffff88801e24ee00 R15: ffff88802a45a788
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f42b45b0000 CR3: 000000007b04a000 CR4: 0000000000350ef0
---
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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
If you want to change bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
next reply other threads:[~2023-06-04 0:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-04 0:35 syzbot [this message]
2023-06-04 0:35 ` [syzbot] [nilfs?] kernel BUG in end_buffer_async_write syzbot
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