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: 31d, last: 6h26m
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly gfs2 report (Jul 2025) 0 (1) 2025/07/14 07:23
[syzbot] [gfs2?] kernel BUG in __gfs2_glock_put (2) 0 (1) 2025/06/20 06:44
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __gfs2_glock_put -1 61 8h17m 14d 0/3 upstream: reported on 2025/07/02 23:28
upstream kernel BUG in __gfs2_glock_put gfs2 -1 3 506d 510d 0/29 auto-obsoleted due to no activity on 2024/06/06 08:03
linux-6.6 kernel BUG in __gfs2_glock_put -1 58 7h00m 13d 0/2 upstream: reported on 2025/07/03 23:46

Sample crash report:
gfs2: fsid=syz:syz.0: G:  s:UN n:2/81e 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: 56 Comm: kworker/1:1H Not tainted 6.16.0-rc6-syzkaller-00037-ge2291551827f #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 88 21 ba fd 90 0f 0b 90 e9 bb fd ff ff e8 7a 21 ba fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 63 21 ba fd 90 0f 0b 90 e9 58 fe ff ff e8 85 7e 1e fe e9
RSP: 0018:ffffc9000131fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888056770fd8 RCX: fffff52000263f2f
RDX: ffff88801bf50000 RSI: ffffffff84018dc4 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888031ea8000
R13: ffff888031ea80a8 R14: ffff888056770ff8 R15: ffffc9000131fd10
FS:  0000000000000000(0000) GS:ffff888124829000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c255014 CR3: 000000005ad6a000 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 88 21 ba fd 90 0f 0b 90 e9 bb fd ff ff e8 7a 21 ba fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 63 21 ba fd 90 0f 0b 90 e9 58 fe ff ff e8 85 7e 1e fe e9
RSP: 0018:ffffc9000131fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888056770fd8 RCX: fffff52000263f2f
RDX: ffff88801bf50000 RSI: ffffffff84018dc4 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888031ea8000
R13: ffff888031ea80a8 R14: ffff888056770ff8 R15: ffffc9000131fd10
FS:  0000000000000000(0000) GS:ffff888124829000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c255014 CR3: 0000000078705000 CR4: 0000000000350ef0

Crashes (127):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/17 14:08 upstream e2291551827f 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/17 02:16 upstream e2291551827f 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/16 22:26 upstream 155a3c003e55 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/15 06:51 upstream 155a3c003e55 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/14 17:45 upstream 347e9f5043c8 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/14 10:07 upstream 347e9f5043c8 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/13 00:23 upstream 3f31a806a62e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/12 10:38 upstream 379f604cc3dc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/10 23:26 upstream bc9ff192a6c9 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/10 11:55 upstream 8c2e52ebbe88 19d4829f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/09 20:38 upstream 8c2e52ebbe88 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/09 14:20 upstream 733923397fd9 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/09 08:16 upstream 733923397fd9 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/08 18:48 upstream d006330be3f7 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root kernel BUG in __gfs2_glock_put
2025/07/08 18:48 upstream d006330be3f7 abade794 .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
2025/07/17 12:36 linux-next 024e09e444bd 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/17 11:07 linux-next 024e09e444bd 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/17 00:39 linux-next e8352908bdcd 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/16 13:17 linux-next e8352908bdcd c118d736 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/16 09:17 linux-next 0be23810e32e c118d736 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/16 01:31 linux-next 0be23810e32e 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/15 22:55 linux-next 0be23810e32e 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/14 14:17 linux-next 0be23810e32e 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/14 11:15 linux-next 0be23810e32e 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/14 08:04 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/14 06:58 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/13 19:07 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/13 15:20 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/13 13:13 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/12 21:45 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/12 18:53 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/12 17:08 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/11 12:49 linux-next a62b7a37e6fc 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/11 01:40 linux-next b551c4e2a98a 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/10 05:19 linux-next 835244aba90d 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/09 21:48 linux-next 835244aba90d f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/09 04:23 linux-next 58ba80c47402 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/08 16:23 linux-next 58ba80c47402 abade794 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/08 11:38 linux-next 58ba80c47402 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/07/08 07:02 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
2025/07/08 03:35 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
2025/07/08 01:19 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 23:53 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 22:03 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 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
2025/06/16 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.