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kernel BUG in __gfs2_glock_put (2)

Status: upstream: reported on 2025/12/30 10:11
Reported-by: syzbot+54d849f0dc4b7a29275b@syzkaller.appspotmail.com
First crash: 27d, last: 1d03h
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __gfs2_glock_put -1 138 112d 208d 0/3 auto-obsoleted due to no activity on 2025/12/15 10:53
linux-6.6 kernel BUG in __gfs2_glock_put (2) -1 59 2h14m 22d 0/2 upstream: reported on 2026/01/04 15:38
upstream kernel BUG in __gfs2_glock_put (2) gfs2 -1 C 502 13d 220d 0/29 upstream: reported C repro on 2025/06/20 06:44
upstream kernel BUG in __gfs2_glock_put gfs2 -1 3 699d 703d 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 149d 207d 0/2 auto-obsoleted due to no activity on 2025/11/08 04:20

Sample crash report:
gfs2: fsid=syz:syz.0: G:  s:UN n:2/81a f: t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:289!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 93 Comm: kworker/0:1H Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: glock_workqueue glock_work_func
RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289
Code: 75 36 e8 cb 99 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 b7 99 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 a1 99 ee fd 0f 0b e9 0f ff ff ff e8 95 99 ee fd e8 d8 aa
RSP: 0000:ffffc900015a7c08 EFLAGS: 00010246
RAX: a70b18faee9a6f00 RBX: ffff8880606a8fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520002b4f74
RBP: 1ffff1100fa33815 R08: ffffc900015a74a7 R09: fffff520002b4f30
R10: dffffc0000000000 R11: fffff520002b4e95 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807d19c000 R15: ffff8880606a92c8
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e4266f345 CR3: 00000000743ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289
Code: 75 36 e8 cb 99 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 b7 99 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 a1 99 ee fd 0f 0b e9 0f ff ff ff e8 95 99 ee fd e8 d8 aa
RSP: 0000:ffffc900015a7c08 EFLAGS: 00010246
RAX: a70b18faee9a6f00 RBX: ffff8880606a8fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520002b4f74
RBP: 1ffff1100fa33815 R08: ffffc900015a74a7 R09: fffff520002b4f30
R10: dffffc0000000000 R11: fffff520002b4e95 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807d19c000 R15: ffff8880606a92c8
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f39473a1000 CR3: 00000000743ae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (54):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/25 21:47 linux-6.1.y cd9b81672742 55756628 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/24 10:55 linux-6.1.y cd9b81672742 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/23 23:02 linux-6.1.y cd9b81672742 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/22 18:22 linux-6.1.y cd9b81672742 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/22 06:08 linux-6.1.y cd9b81672742 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/20 11:38 linux-6.1.y cd9b81672742 06648d9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/19 23:28 linux-6.1.y cd9b81672742 572effc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/19 23:28 linux-6.1.y cd9b81672742 572effc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/19 23:28 linux-6.1.y cd9b81672742 572effc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/19 10:48 linux-6.1.y cd9b81672742 a9fc5226 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/19 10:48 linux-6.1.y cd9b81672742 a9fc5226 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/17 18:49 linux-6.1.y cd9b81672742 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/11 16:54 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/10 06:06 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/03 23:04 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/12/30 10:11 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/23 16:32 linux-6.1.y cd9b81672742 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/22 16:44 linux-6.1.y cd9b81672742 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/22 04:37 linux-6.1.y cd9b81672742 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/22 04:37 linux-6.1.y cd9b81672742 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 16:23 linux-6.1.y cd9b81672742 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 16:22 linux-6.1.y cd9b81672742 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 16:22 linux-6.1.y cd9b81672742 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 03:40 linux-6.1.y cd9b81672742 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 03:40 linux-6.1.y cd9b81672742 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/21 03:40 linux-6.1.y cd9b81672742 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/20 09:39 linux-6.1.y cd9b81672742 06648d9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/19 09:10 linux-6.1.y cd9b81672742 a9fc5226 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/19 09:08 linux-6.1.y cd9b81672742 a9fc5226 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/17 17:01 linux-6.1.y cd9b81672742 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/17 17:01 linux-6.1.y cd9b81672742 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/17 17:00 linux-6.1.y cd9b81672742 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/17 17:00 linux-6.1.y cd9b81672742 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/16 21:42 linux-6.1.y bec0e10ee67e 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/16 21:41 linux-6.1.y bec0e10ee67e 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/16 21:41 linux-6.1.y bec0e10ee67e 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/16 21:41 linux-6.1.y bec0e10ee67e 20d37d28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/16 16:55 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/15 21:11 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/15 11:36 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/14 09:26 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/11 15:16 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/11 15:16 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/11 15:16 linux-6.1.y bec0e10ee67e d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/05 02:51 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2026/01/04 11:23 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
2025/12/31 23:48 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in __gfs2_glock_put
* Struck through repros no longer work on HEAD.