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:4493 [syz.4.22] gfs2_quota_sync+0x2cc/0x500 fs/gfs2/quota.c:1329
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1560!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4493 Comm: syz.4.22 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : add_to_queue fs/gfs2/glock.c:1559 [inline]
pc : gfs2_glock_nq+0xec8/0x11c4 fs/gfs2/glock.c:1585
lr : add_to_queue fs/gfs2/glock.c:1559 [inline]
lr : gfs2_glock_nq+0xec8/0x11c4 fs/gfs2/glock.c:1585
sp : ffff800022147890
x29: ffff800022147900 x28: ffff0000f5218080 x27: ffff0000f1553660
x26: ffff0000cbf70b40 x25: 0000000000000000 x24: 0000000000000400
x23: ffff0000f1553630 x22: ffff0000f5218000 x21: ffff0000f155365a
x20: ffff0000f5218018 x19: 0000000000000008 x18: ffff800011b8bf60
x17: 715f32736667205d x16: ffff8000082d91a4 x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe00033ea87a3 x12: 0000000000ff0100
x11: ff0080000a1cb9bc x10: 0000000000000000 x9 : 0f06abb89ebd3300
x8 : 0f06abb89ebd3300 x7 : 0000000000000000 x6 : 0000000000000001
x5 : ffff800022146e98 x4 : 0000000000000000 x3 : ffff80000853854c
x2 : ffffffffffffffc0 x1 : 0000000000000000 x0 : ffff700004428ec0
Call trace:
 add_to_queue fs/gfs2/glock.c:1559 [inline]
 gfs2_glock_nq+0xec8/0x11c4 fs/gfs2/glock.c:1585
 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline]
 do_sync+0x380/0xaec fs/gfs2/quota.c:921
 gfs2_quota_sync+0x2cc/0x500 fs/gfs2/quota.c:1329
 quota_sync_one+0x104/0x188 fs/quota/quota.c:60
 iterate_supers+0x11c/0x1d0 fs/super.c:757
 quota_sync_all fs/quota/quota.c:69 [inline]
 __do_sys_quotactl fs/quota/quota.c:937 [inline]
 __se_sys_quotactl fs/quota/quota.c:916 [inline]
 __arm64_sys_quotactl+0x3a4/0x77c fs/quota/quota.c:916
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: aa1f03e0 aa1603e1 52800022 97ffe383 (d4210000) 
---[ end trace 0000000000000000 ]---