syzbot


kernel BUG in __gfs2_glock_put (2)

Status: upstream: reported on 2025/06/20 06:44
Subsystems: gfs2
[Documentation on labels]
Reported-by: syzbot+ef4ad020dc976d178975@syzkaller.appspotmail.com
First crash: 21d, last: 2h58m
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [gfs2?] kernel BUG in __gfs2_glock_put (2) 0 (1) 2025/06/20 06:44
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __gfs2_glock_put 17 1d10h 4d21h 0/3 upstream: reported on 2025/07/02 23:28
upstream kernel BUG in __gfs2_glock_put gfs2 3 496d 500d 0/29 auto-obsoleted due to no activity on 2024/06/06 08:03
linux-6.6 kernel BUG in __gfs2_glock_put 16 1d10h 3d20h 0/2 upstream: reported on 2025/07/03 23:46

Sample crash report:
gfs2: fsid=syz:syz.s: G:  s:UN n:2/81a f:a t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:274!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 55 Comm: kworker/1:1H Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: gfs2-glock/syz:syz glock_work_func
RIP: 0010:__gfs2_glock_put+0x466/0x4f0 fs/gfs2/glock.c:274
Code: 90 90 e9 07 fe ff ff e8 18 ac b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 0a ac b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 f3 ab b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 f5 91 1e fe e9
RSP: 0018:ffffc9000130fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88805b188fd8 RCX: fffff52000261f2f
RDX: ffff888023e99e00 RSI: ffffffff84030084 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88807e8c8000
R13: ffff88807e8c80a8 R14: ffff88805b188ff8 R15: ffffc9000130fd10
FS:  0000000000000000(0000) GS:ffff88812481c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6ebe17e000 CR3: 0000000063e87000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 glock_work_func+0x396/0x4d0 fs/gfs2/glock.c:1108
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x466/0x4f0 fs/gfs2/glock.c:274
Code: 90 90 e9 07 fe ff ff e8 18 ac b8 fd 90 0f 0b 90 e9 bb fd ff ff e8 0a ac b8 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 f3 ab b8 fd 90 0f 0b 90 e9 58 fe ff ff e8 f5 91 1e fe e9
RSP: 0018:ffffc9000130fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88805b188fd8 RCX: fffff52000261f2f
RDX: ffff888023e99e00 RSI: ffffffff84030084 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88807e8c8000
R13: ffff88807e8c80a8 R14: ffff88805b188ff8 R15: ffffc9000130fd10
FS:  0000000000000000(0000) GS:ffff88812481c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6ebe17e000 CR3: 0000000063e87000 CR4: 0000000000350ef0

Crashes (44):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/07 04:40 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/07 04:37 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/07 04:37 upstream d7b8f8e20813 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/06 11:39 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/06 11:38 upstream 1f988d0788f5 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/05 22:33 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/05 22:33 upstream 05df91921da6 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/05 07:55 upstream a79a588fc176 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 18:38 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 17:11 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 17:10 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 17:09 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 15:12 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 15:05 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 00:29 upstream 17bbde2e1716 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 00:27 upstream 17bbde2e1716 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/04 00:27 upstream 17bbde2e1716 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/03 19:54 upstream 17bbde2e1716 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/03 19:18 upstream 17bbde2e1716 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/03 19:18 upstream 17bbde2e1716 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/03 08:57 upstream b4911fb0b060 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/03 08:57 upstream b4911fb0b060 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/03 04:00 upstream b4911fb0b060 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/07 17:47 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/07 10:14 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/06 21:22 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/06 21:17 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/06 20:11 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/06 12:16 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/06 10:21 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/05 08:54 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/05 08:54 linux-next 26ffb3d6f02c 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 18:16 linux-next 26ffb3d6f02c d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 18:16 linux-next 26ffb3d6f02c d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 18:16 linux-next 26ffb3d6f02c d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 12:43 linux-next 26ffb3d6f02c 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 12:43 linux-next 26ffb3d6f02c 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/04 03:31 linux-next 8d6c58332c7a 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/03 08:37 linux-next 50c8770a42fa 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/02 20:13 linux-next 50c8770a42fa 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/02 20:12 linux-next 50c8770a42fa 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/02 20:12 linux-next 50c8770a42fa 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/06/16 06:41 linux-next bc6e0ba6c9ba 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
* Struck through repros no longer work on HEAD.