syzbot


WARNING in dqput (2)

Status: moderation: reported on 2025/05/22 15:23
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+c3631a8736b082513c0a@syzkaller.appspotmail.com
First crash: 170d, last: 20d
Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in dqput ocfs2 -1 syz inconclusive done 6 296d 308d 0/29 auto-obsoleted due to no activity on 2025/04/23 02:22

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5975 at fs/quota/dquot.c:883 dqput+0x341/0x470 fs/quota/dquot.c:883
Modules linked in:
CPU: 0 UID: 0 PID: 5975 Comm: kworker/0:7 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events qsync_work_fn
RIP: 0010:dqput+0x341/0x470 fs/quota/dquot.c:883
Code: ce 6f ff eb 05 e8 4f ce 6f ff 48 c7 c7 80 eb 41 8d 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d e9 55 66 79 08 e8 30 ce 6f ff 90 <0f> 0b 90 e9 8d fe ff ff 48 c7 c1 7c 77 f7 8e 80 e1 07 80 c1 03 38
RSP: 0018:ffffc9000549f990 EFLAGS: 00010293
RAX: ffffffff824f1f00 RBX: ffff88805f76c140 RCX: ffff88802eb0bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100beed829 R12: 1ffff1100beed828
R13: 1ffff1100beed804 R14: ffff88805f76c000 R15: ffff88805f76c020
FS:  0000000000000000(0000) GS:ffff888126bc9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f146b3428c0 CR3: 000000005a0d4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dquot_scan_active+0x226/0x280 fs/quota/dquot.c:666
 qsync_work_fn+0xab/0x150 fs/ocfs2/quota_global.c:658
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/16 02:17 upstream 1f4a222b0e33 19568248 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in dqput
2025/08/29 09:02 upstream 07d9df80082b 3e1beec6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dqput
2025/08/22 16:53 upstream 3957a5720157 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in dqput
2025/07/15 04:39 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dqput
2025/07/05 22:39 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in dqput
2025/05/20 21:09 upstream a5806cd506af b47f9e02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in dqput
2025/05/18 15:17 upstream 5723cc3450bc f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in dqput
2025/07/13 10:02 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in dqput
2025/09/23 04:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b5db4add5e77 0ac7291c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in dqput
* Struck through repros no longer work on HEAD.