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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: 73d, last: 14d
▶ ▼ 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 158d 254d 0/3 auto-obsoleted due to no activity on 2025/12/15 10:53
linux-6.6 kernel BUG in __gfs2_glock_put (2) -1 102 38d 68d 0/2 upstream: reported on 2026/01/04 15:38
upstream kernel BUG in __gfs2_glock_put (2) gfs2 -1 C 502 59d 266d 0/29 upstream: reported C repro on 2025/06/20 06:44
upstream kernel BUG in __gfs2_glock_put gfs2 -1 3 745d 749d 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 195d 253d 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: 1 PID: 52 Comm: kworker/1:1H Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: glock_workqueue glock_work_func
RIP: 0010:__gfs2_glock_put+0x408/0x450 fs/gfs2/glock.c:289
Code: 75 36 e8 4b 87 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 37 87 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 21 87 ee fd 0f 0b e9 0f ff ff ff e8 15 87 ee fd e8 a8 95
RSP: 0018:ffffc90000bd7c08 EFLAGS: 00010246
RAX: 45d2f634cce14d00 RBX: ffff88807bff0fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff5200017af74
RBP: 1ffff1100f895015 R08: ffffc90000bd74a7 R09: fffff5200017af30
R10: dffffc0000000000 R11: fffff5200017ae95 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807c4a8000 R15: ffff88807bff12c8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda52d85900 CR3: 0000000018ab8000 CR4: 00000000003506e0
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 4b 87 ee fd 49 bd 00 00 00 00 00 fc ff df e9 c6 fd ff ff e8 37 87 ee fd 31 ff 48 89 de ba 01 00 00 00 e8 f8 da ff ff <0f> 0b e8 21 87 ee fd 0f 0b e9 0f ff ff ff e8 15 87 ee fd e8 a8 95
RSP: 0018:ffffc90000bd7c08 EFLAGS: 00010246
RAX: 45d2f634cce14d00 RBX: ffff88807bff0fd8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff5200017af74
RBP: 1ffff1100f895015 R08: ffffc90000bd74a7 R09: fffff5200017af30
R10: dffffc0000000000 R11: fffff5200017ae95 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807c4a8000 R15: ffff88807bff12c8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f321ff8 CR3: 0000000076fe9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (102):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/27 01:13 linux-6.1.y 779f9571ac3e a2f13f71 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/24 11:19 linux-6.1.y 779f9571ac3e 96b1aa46 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/24 11:19 linux-6.1.y 779f9571ac3e 96b1aa46 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/23 23:02 linux-6.1.y 779f9571ac3e 41d2fa6a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/23 11:02 linux-6.1.y 779f9571ac3e 6beca497 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/20 19:29 linux-6.1.y 779f9571ac3e 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/20 07:30 linux-6.1.y 779f9571ac3e 17d780d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/19 17:46 linux-6.1.y 779f9571ac3e 746545b8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/18 04:35 linux-6.1.y 8ce36b2849ef 39751c21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/17 16:12 linux-6.1.y 8ce36b2849ef 06ec4f7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/13 18:04 linux-6.1.y 8ce36b2849ef 1e62d198 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/13 05:46 linux-6.1.y 8ce36b2849ef 6a673c50 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/12 17:00 linux-6.1.y 8ce36b2849ef 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/12 17:00 linux-6.1.y 8ce36b2849ef 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/12 01:09 linux-6.1.y 8ce36b2849ef 76a109e2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/11 12:48 linux-6.1.y 0182cb5b74ee 75707236 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/09 11:28 linux-6.1.y 0182cb5b74ee df949cd9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/06 18:55 linux-6.1.y 0182cb5b74ee 97745f52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/06 12:32 linux-6.1.y cd9b81672742 97745f52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/05 23:05 linux-6.1.y cd9b81672742 f03c4191 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/02 22:18 linux-6.1.y cd9b81672742 d78927dd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/02 09:45 linux-6.1.y cd9b81672742 018ebef2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/02/01 01:42 linux-6.1.y cd9b81672742 6b8752f2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/31 13:18 linux-6.1.y cd9b81672742 afc0c4d4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/30 12:41 linux-6.1.y cd9b81672742 ae7dc18c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/29 12:31 linux-6.1.y cd9b81672742 aeb6fdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/29 00:28 linux-6.1.y cd9b81672742 0adc945e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/28 12:03 linux-6.1.y cd9b81672742 004c195c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2026/01/27 11:46 linux-6.1.y cd9b81672742 9a514c2f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
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
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
* Struck through repros no longer work on HEAD.