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:4838 [syz.2.178] 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: 4838 Comm: syz.2.178 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff800021257930 x29: ffff8000212579a0 x28: ffff0000e2263be0 x27: ffff0000f4c96360 x26: ffff0000f0c368c0 x25: 0000000000000000 x24: 0000000000000400 x23: ffff0000f4c96330 x22: ffff0000e2263b60 x21: ffff0000f4c9635a x20: ffff0000e2263b78 x19: 0000000000000008 x18: ffff800011b7bf60 x17: 5f32736667205d38 x16: ffff8000082d9364 x15: 0000000000000002 x14: 0000000000000001 x13: 1ffff0000424ade4 x12: 0000000000080000 x11: 000000000004b64a x10: ffff800028c5a000 x9 : f6fceb6f98f2d000 x8 : f6fceb6f98f2d000 x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff800021256f38 x4 : 000000000000000c x3 : 0000000000000030 x2 : 0000000000000004 x1 : 0000000000000000 x0 : ffff70000424aed4 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 gfs2_sync_fs+0x4c/0xc4 fs/gfs2/super.c:660 sync_fs_one_sb+0xd8/0x120 fs/sync.c:84 iterate_supers+0x11c/0x1d0 fs/super.c:757 ksys_sync+0xb0/0x17c fs/sync.c:103 __arm64_sys_sync+0x14/0x24 fs/sync.c:113 __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 ]---