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: 96d, last: 5d06h
Discussions (4)
Title Replies (including bot) Last reply
[syzbot] Monthly gfs2 report (Sep 2025) 0 (1) 2025/09/15 06:54
[syzbot] Monthly gfs2 report (Aug 2025) 0 (1) 2025/08/14 12:42
[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 -1 108 53d 80d 0/3 upstream: reported on 2025/07/02 23:28
upstream kernel BUG in __gfs2_glock_put gfs2 -1 3 571d 575d 0/29 auto-obsoleted due to no activity on 2024/06/06 08:03
linux-6.6 kernel BUG in __gfs2_glock_put -1 219 21d 79d 0/2 upstream: reported on 2025/07/03 23:46

Sample crash report:
gfs2: fsid=syz:syz.0: G:  s:UN n:2/819 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: 0 UID: 0 PID: 1072 Comm: kworker/0:1H Not tainted 6.16.0-syzkaller-11322-g352af6a011d5 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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 e8 97 b2 fd 90 0f 0b 90 e9 bb fd ff ff e8 da 97 b2 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 c3 97 b2 fd 90 0f 0b 90 e9 58 fe ff ff e8 95 e7 17 fe e9
RSP: 0018:ffffc90003a6fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88805f390fd8 RCX: fffff5200074df2f
RDX: ffff888027bc5a00 RSI: ffffffff8408b684 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805510c000
R13: ffff88805510c0a8 R14: ffff88805f390ff8 R15: ffffc90003a6fd10
FS:  0000000000000000(0000) GS:ffff8881246cf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd1369a8000 CR3: 0000000060d1e000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 glock_work_func+0x396/0x4d0 fs/gfs2/glock.c:1107
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400
 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 e8 97 b2 fd 90 0f 0b 90 e9 bb fd ff ff e8 da 97 b2 fd ba 01 00 00 00 48 89 de 31 ff e8 cb ad ff ff 90 <0f> 0b e8 c3 97 b2 fd 90 0f 0b 90 e9 58 fe ff ff e8 95 e7 17 fe e9
RSP: 0018:ffffc90003a6fbf0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88805f390fd8 RCX: fffff5200074df2f
RDX: ffff888027bc5a00 RSI: ffffffff8408b684 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805510c000
R13: ffff88805510c0a8 R14: ffff88805f390ff8 R15: ffffc90003a6fd10
FS:  0000000000000000(0000) GS:ffff8881246cf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd1369a8000 CR3: 00000000336c5000 CR4: 0000000000350ef0

Crashes (342):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/04 00:38 upstream 352af6a011d5 7368264b .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
2025/09/15 19:40 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/15 17:39 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/15 06:15 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/14 10:43 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/14 06:39 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/14 04:31 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/13 23:29 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/13 10:29 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/12 09:28 linux-next 590b221ed425 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/11 16:22 linux-next 5f540c4aade9 fdeaa69b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/09 09:57 linux-next 65dd046ef558 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/08 08:56 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/08 02:05 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/08 01:00 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/07 22:41 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/07 17:42 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/07 13:30 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/07 01:17 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/06 19:05 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/06 15:46 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/06 13:01 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/05 08:01 linux-next be5d4872e528 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/04 04:16 linux-next 5d50cf9f7cf2 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/09/03 07:57 linux-next 5d50cf9f7cf2 96a211bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/26 17:45 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/26 12:57 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/26 06:58 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/26 04:36 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/25 23:55 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/25 08:48 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/24 08:23 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/24 04:28 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/24 01:22 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/23 21:56 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/21 23:13 linux-next 7fa4d8dc380f bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/21 08:33 linux-next 7fa4d8dc380f 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/21 02:11 linux-next 5303936d609e 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/20 12:10 linux-next 5303936d609e bd178e57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/20 10:40 linux-next 5303936d609e 79512909 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/20 06:13 linux-next 5303936d609e 79512909 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/20 06:13 linux-next 5303936d609e 79512909 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root kernel BUG in __gfs2_glock_put
2025/08/19 22:00 linux-next 886e5e7b0432 79512909 .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.