syzbot


kernel BUG in __gfs2_glock_put

Status: upstream: reported on 2025/07/02 23:28
Reported-by: syzbot+8d0ca86132fa82d878c2@syzkaller.appspotmail.com
First crash: 14d, last: 5h09m
Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in __gfs2_glock_put (2) gfs2 -1 127 3h17m 27d 0/29 upstream: reported on 2025/06/20 06:44
upstream kernel BUG in __gfs2_glock_put gfs2 -1 3 506d 509d 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 3h51m 13d 0/2 upstream: reported on 2025/07/03 23:46

Sample crash report:
gfs2: fsid=syz:syz.0: G:  s:UN n:2/922 f:n 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: 4267 Comm: syz-executor Not tainted 6.1.145-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__gfs2_glock_put+0x3d3/0x420 fs/gfs2/glock.c:289
Code: 00 00 e8 d0 e4 f5 fd 40 84 ed 75 2c e8 66 e2 f5 fd e9 e3 fd ff ff e8 5c e2 f5 fd 31 ff 48 89 de ba 01 00 00 00 e8 0d de ff ff <0f> 0b e8 46 e2 f5 fd 0f 0b e9 2c ff ff ff e8 3a e2 f5 fd e8 5d 9b
RSP: 0018:ffffc90003da79a8 EFLAGS: 00010246
RAX: da805019a1212f00 RBX: ffff88807cfa6f88 RCX: ffff88807f5a3b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffff520007b4e49
R10: fffff520007b4e49 R11: 1ffff920007b4e48 R12: dffffc0000000000
R13: 1ffff1100f414015 R14: ffff88807a0a0000 R15: ffff88807cfa7278
FS:  00005555713ba500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6465d9b000 CR3: 000000005c1d6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_put_eventually fs/gfs2/super.c:1257 [inline]
 gfs2_evict_inode+0xe85/0x1170 fs/gfs2/super.c:1534
 evict+0x485/0x870 fs/inode.c:705
 gfs2_put_super+0x3c6/0x8c0 fs/gfs2/super.c:614
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7c/0xe0 fs/super.c:1470
 deactivate_locked_super+0x93/0xf0 fs/super.c:332
 cleanup_mnt+0x463/0x4f0 fs/namespace.c:1182
 task_work_run+0x1ca/0x250 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f10d578fc57
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd6298f538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f10d5810a8d RCX: 00007f10d578fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd6298f5f0
RBP: 00007ffd6298f5f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd62990680
R13: 00007f10d5810a8d R14: 00000000000712d0 R15: 00007ffd629906c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x3d3/0x420 fs/gfs2/glock.c:289
Code: 00 00 e8 d0 e4 f5 fd 40 84 ed 75 2c e8 66 e2 f5 fd e9 e3 fd ff ff e8 5c e2 f5 fd 31 ff 48 89 de ba 01 00 00 00 e8 0d de ff ff <0f> 0b e8 46 e2 f5 fd 0f 0b e9 2c ff ff ff e8 3a e2 f5 fd e8 5d 9b
RSP: 0018:ffffc90003da79a8 EFLAGS: 00010246
RAX: da805019a1212f00 RBX: ffff88807cfa6f88 RCX: ffff88807f5a3b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffff520007b4e49
R10: fffff520007b4e49 R11: 1ffff920007b4e48 R12: dffffc0000000000
R13: 1ffff1100f414015 R14: ffff88807a0a0000 R15: ffff88807cfa7278
FS:  00005555713ba500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6465d90000 CR3: 000000005c1d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (61):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/17 12:17 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/17 12:14 linux-6.1.y f2198ea7eb3e 0d1223f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/16 20:16 linux-6.1.y f2198ea7eb3e 44f8051e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/16 07:08 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/15 03:19 linux-6.1.y f2198ea7eb3e 03fcfc4b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/14 16:08 linux-6.1.y f2198ea7eb3e d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/14 10:42 linux-6.1.y dfc486ec9cce d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/14 10:41 linux-6.1.y dfc486ec9cce d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/14 10:41 linux-6.1.y dfc486ec9cce d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 16:48 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 16:48 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 16:47 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 16:47 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 16:47 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 15:49 linux-6.1.y dfc486ec9cce 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 15:47 linux-6.1.y dfc486ec9cce 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 15:45 linux-6.1.y dfc486ec9cce 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 15:45 linux-6.1.y dfc486ec9cce 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 02:25 linux-6.1.y 04d1ccaa9c28 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/10 02:25 linux-6.1.y 04d1ccaa9c28 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/09 08:08 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/09 08:08 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/09 08:07 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/09 08:07 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/08 14:41 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/08 14:41 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/08 14:41 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/08 14:41 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/08 14:40 linux-6.1.y 04d1ccaa9c28 4d9fdfa4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/06 10:27 linux-6.1.y 04d1ccaa9c28 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/06 10:25 linux-6.1.y 04d1ccaa9c28 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/06 10:21 linux-6.1.y 04d1ccaa9c28 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/05 07:02 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/05 06:57 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/05 06:53 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/05 06:53 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/04 14:39 linux-6.1.y 7e69c33e4858 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/04 14:39 linux-6.1.y 7e69c33e4858 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 23:36 linux-6.1.y 7e69c33e4858 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 23:36 linux-6.1.y 7e69c33e4858 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 23:36 linux-6.1.y 7e69c33e4858 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 23:35 linux-6.1.y 7e69c33e4858 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 04:09 linux-6.1.y 7e69c33e4858 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 04:08 linux-6.1.y 7e69c33e4858 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/03 04:08 linux-6.1.y 7e69c33e4858 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
2025/07/02 23:27 linux-6.1.y 7e69c33e4858 bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in __gfs2_glock_put
* Struck through repros no longer work on HEAD.