From: syzbot <[email protected]>
To: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Subject: Re: [syzbot] WARNING in io_wq_put
Date: Sat, 20 Mar 2021 17:44:12 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
syzbot has found a reproducer for the following issue on:
HEAD commit: 1c273e10 Merge tag 'zonefs-5.12-rc4' of git://git.kernel.o..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13853506d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c51293a9ca630f6d
dashboard link: https://syzkaller.appspot.com/bug?extid=77a738a6bc947bf639ca
compiler: Debian clang version 11.0.1-2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11ec259ed00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13acfa62d00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12892 at fs/io-wq.c:1064 io_wq_destroy fs/io-wq.c:1064 [inline]
WARNING: CPU: 1 PID: 12892 at fs/io-wq.c:1064 io_wq_put+0x153/0x260 fs/io-wq.c:1075
Modules linked in:
CPU: 1 PID: 12892 Comm: syz-executor789 Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:io_wq_destroy fs/io-wq.c:1064 [inline]
RIP: 0010:io_wq_put+0x153/0x260 fs/io-wq.c:1075
Code: 8d e8 f1 5f f2 01 49 89 c4 41 83 fc 40 7d 4f e8 a3 e9 97 ff 42 80 7c 2d 00 00 0f 85 77 ff ff ff e9 7a ff ff ff e8 8d e9 97 ff <0f> 0b eb b9 8d 6b ff 89 ee 09 de bf ff ff ff ff e8 88 ed 97 ff 09
RSP: 0018:ffffc9000a5efaa0 EFLAGS: 00010293
RAX: ffffffff81e11103 RBX: ffff888021873040 RCX: ffff88801fbb3880
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000040
RBP: 1ffff11004b3e480 R08: ffffffff81e1104e R09: ffffed1004b3e482
R10: ffffed1004b3e482 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8880259f2400 R15: ffff888021873000
FS: 00007f2407204700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000480510 CR3: 000000002d9a1000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
io_uring_clean_tctx fs/io_uring.c:8874 [inline]
__io_uring_files_cancel+0xe11/0xe60 fs/io_uring.c:8939
io_uring_files_cancel include/linux/io_uring.h:22 [inline]
do_exit+0x258/0x2340 kernel/exit.c:780
do_group_exit+0x168/0x2d0 kernel/exit.c:922
get_signal+0x1734/0x1ef0 kernel/signal.c:2773
arch_do_signal_or_restart+0x3c/0x610 arch/x86/kernel/signal.c:811
handle_signal_work kernel/entry/common.c:147 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0xac/0x1e0 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x26/0x70 kernel/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x448c49
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24072041f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000302 RBX: 00000000004cd508 RCX: 0000000000448c49
RDX: 0000000000000000 RSI: 0000000000000302 RDI: 0000000000000005
RBP: 00000000004cd500 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cd50c
R13: 00007ffc6fa9d1bf R14: 00007f2407204300 R15: 0000000000022000
next prev parent reply other threads:[~2021-03-21 1:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 15:33 [syzbot] WARNING in io_wq_put syzbot
2021-03-09 15:39 ` Jens Axboe
2021-03-21 0:44 ` syzbot [this message]
2021-03-23 14:01 ` Jens Axboe
2021-03-23 14:23 ` syzbot
2021-03-25 16:19 ` Jens Axboe
2021-03-25 17:58 ` syzbot
2021-03-25 18:00 ` Jens Axboe
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