gfs2: fsid=syz:syz.0: new: gfs2_quota_sync+0x32c/0x700 fs/gfs2/quota.c:1329
gfs2: fsid=syz:syz.0: pid: 4673
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:4673 [syz.3.52] gfs2_quota_sync+0x32c/0x700 fs/gfs2/quota.c:1329
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1560!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4673 Comm: syz.3.52 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0x1207/0x14e0 fs/gfs2/glock.c:1585
Code: ef 12 3f fe 41 0f b7 0e 48 c7 c7 a0 2a d2 8a 4c 89 fe 89 da e8 2a 11 8d 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 c9 78 ff ff <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 59 ef ff ff 4c 89 ff
RSP: 0018:ffffc900033078b8 EFLAGS: 00010246
RAX: eca3ab96fc555d00 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff52000660f0c
RBP: ffff8880700c0080 R08: ffffffff8e1fcc2f R09: fffff52000660ec8
R10: dffffc0000000000 R11: fffffbfff1c3f986 R12: ffff888064012018
R13: 0000000000000000 R14: ffff88806401205a R15: ffff888029815270
FS:  00007fbf621206c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005627430fa950 CR3: 0000000030073000 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:255 [inline]
 do_sync+0x3f5/0xc40 fs/gfs2/quota.c:921
 gfs2_quota_sync+0x32c/0x700 fs/gfs2/quota.c:1329
 gfs2_sync_fs+0x48/0xb0 fs/gfs2/super.c:664
 sync_filesystem+0xe6/0x220 fs/sync.c:56
 gfs2_reconfigure+0x125/0xd30 fs/gfs2/ops_fstype.c:1546
 reconfigure_super+0x219/0x8a0 fs/super.c:977
 do_remount fs/namespace.c:2741 [inline]
 path_mount+0xe13/0x1020 fs/namespace.c:3400
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3606
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbf6119bf79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbf62120028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbf61415fa0 RCX: 00007fbf6119bf79
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 00007fbf612327e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000003376039 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbf61416038 R14: 00007fbf61415fa0 R15: 00007ffd8648a158
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0x1207/0x14e0 fs/gfs2/glock.c:1585
Code: ef 12 3f fe 41 0f b7 0e 48 c7 c7 a0 2a d2 8a 4c 89 fe 89 da e8 2a 11 8d 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 c9 78 ff ff <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 59 ef ff ff 4c 89 ff
RSP: 0018:ffffc900033078b8 EFLAGS: 00010246
RAX: eca3ab96fc555d00 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: fffff52000660f0c
RBP: ffff8880700c0080 R08: ffffffff8e1fcc2f R09: fffff52000660ec8
R10: dffffc0000000000 R11: fffffbfff1c3f986 R12: ffff888064012018
R13: 0000000000000000 R14: ffff88806401205a R15: ffff888029815270
FS:  00007fbf621206c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005627430fa950 CR3: 0000000030073000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400