gfs2: fsid=syz:syz.0: new: gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline]
gfs2: fsid=syz:syz.0: new: do_sync+0x3d4/0xba0 fs/gfs2/quota.c:921
gfs2: fsid=syz:syz.0: pid: 4191
gfs2: fsid=syz:syz.0: lock type: 8 req lock state : 1
gfs2: fsid=syz:syz.0: G:  s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 p:0
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:4191 [syz-executor] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline]
gfs2: fsid=syz:syz.0:  H: s:EX f:cH e:0 p:4191 [syz-executor] do_sync+0x3d4/0xba0 fs/gfs2/quota.c:921
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1503!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4191 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:add_to_queue fs/gfs2/glock.c:1503 [inline]
RIP: 0010:gfs2_glock_nq+0xfe7/0x1510 fs/gfs2/glock.c:1527
Code: e8 ce f9 52 fe 89 da 41 0f b7 0e 48 c7 c7 80 6e 6d 8a 4c 89 fe e8 39 19 44 06 31 ff 48 8b 34 24 ba 01 00 00 00 e8 e9 8a ff ff <0f> 0b e8 92 d9 0d fe e8 fd 63 95 fd e9 2e fa ff ff 4c 8d 7b 08 4d
RSP: 0018:ffffc90002effa80 EFLAGS: 00010246
RAX: 5367dda81b9fa900 RBX: ffff8880621c95f8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520005dff44
RBP: ffff88805d951a50 R08: ffffffff8d89e06f R09: fffff520005dff00
R10: dffffc0000000000 R11: fffffbfff1b13c0e R12: dffffc0000000000
R13: ffff88805d951a22 R14: ffff88805d951a5a R15: ffff88807d1e52c0
FS:  0000555563792500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555637ada38 CR3: 0000000062b66000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline]
 do_sync+0x3dc/0xba0 fs/gfs2/quota.c:921
 gfs2_quota_sync+0x355/0x780 fs/gfs2/quota.c:1329
 gfs2_sync_fs+0x48/0xb0 fs/gfs2/super.c:651
 sync_filesystem+0xe6/0x220 fs/sync.c:56
 generic_shutdown_super+0x6b/0x300 fs/super.c:448
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x426/0x4d0 fs/namespace.c:1148
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff0db099097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffc93ac2d68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff0db12d2ca RCX: 00007ff0db099097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc93ac2e20
RBP: 00007ffc93ac2e20 R08: 00007ffc93ac3e20 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc93ac3eb0
R13: 00007ff0db12d2ca R14: 000000000001cc04 R15: 00007ffc93ac3ef0
 </TASK>
Modules linked in:
---[ end trace 3a18748ad0276cc1 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1503 [inline]
RIP: 0010:gfs2_glock_nq+0xfe7/0x1510 fs/gfs2/glock.c:1527
Code: e8 ce f9 52 fe 89 da 41 0f b7 0e 48 c7 c7 80 6e 6d 8a 4c 89 fe e8 39 19 44 06 31 ff 48 8b 34 24 ba 01 00 00 00 e8 e9 8a ff ff <0f> 0b e8 92 d9 0d fe e8 fd 63 95 fd e9 2e fa ff ff 4c 8d 7b 08 4d
RSP: 0018:ffffc90002effa80 EFLAGS: 00010246
RAX: 5367dda81b9fa900 RBX: ffff8880621c95f8 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff520005dff44
RBP: ffff88805d951a50 R08: ffffffff8d89e06f R09: fffff520005dff00
R10: dffffc0000000000 R11: fffffbfff1b13c0e R12: dffffc0000000000
R13: ffff88805d951a22 R14: ffff88805d951a5a R15: ffff88807d1e52c0
FS:  0000555563792500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555637ada38 CR3: 0000000062b66000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400