gfs2: fsid=syz:syz.0: G: s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:7 m:20 p:0 gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:4328 [syz-executor] 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: 1 PID: 4328 Comm: syz-executor 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 : ffff800020f675f0 x29: ffff800020f67660 x28: ffff0000f67a9980 x27: ffff0000d238fe60 x26: ffff0000ee454280 x25: 0000000000000000 x24: 0000000000000400 x23: ffff0000d238fe30 x22: ffff0000f67a9900 x21: ffff0000d238fe5a x20: ffff0000f67a9918 x19: 0000000000000008 x18: ffff800011b7bf60 x17: 6667205d726f7475 x16: ffff8000082d9364 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe00033eaeda3 x12: 0000000000ff0100 x11: ff0080000a1c96b8 x10: 0000000000000000 x9 : 8cd8dd1e5598f700 x8 : 8cd8dd1e5598f700 x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff800020f66bf8 x4 : 0000000000000004 x3 : 0000000000000030 x2 : 000000000000000c x1 : 0000000000000000 x0 : ffff7000041ece6c 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_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x70/0x324 fs/super.c:474 kill_block_super+0x70/0xdc fs/super.c:1470 gfs2_kill_sb+0xc0/0xd4 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xac/0x120 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x390/0x418 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1ec/0x278 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1137 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638 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 ]---