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:6669 [syz.7.355] gfs2_quota_sync+0x2cc/0x4e8 fs/gfs2/quota.c:1329 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1587! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6669 Comm: syz.7.355 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : add_to_queue fs/gfs2/glock.c:1586 [inline] pc : gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1612 lr : add_to_queue fs/gfs2/glock.c:1586 [inline] lr : gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1612 sp : ffff800022257680 x29: ffff8000222576c0 x28: 0000000000000400 x27: dfff800000000000 x26: ffff0000f6b61a00 x25: ffff0000f19dd200 x24: ffff0000f19dd200 x23: 0000000000000000 x22: ffff0000f19dd25a x21: ffff0000f720f200 x20: ffff0000f720f218 x19: 0000000000000008 x18: 1fffe00033c2177e x17: 5f32736667205d35 x16: ffff800011ba16d0 x15: 5b20393636363a70 x14: 0000000000000001 x13: 1ffff0000444ad90 x12: 0000000000000000 x11: ff0080000a210964 x10: 0000000000000000 x9 : b524c9da39fc0e00 x8 : b524c9da39fc0e00 x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff800022256c98 x4 : 0000000000000000 x3 : ffff80000831ff30 x2 : ffffffffffffffc0 x1 : 0000000000000000 x0 : ffff70000444ae80 Call trace: add_to_queue fs/gfs2/glock.c:1586 [inline] gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1612 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline] do_sync+0x370/0xa68 fs/gfs2/quota.c:921 gfs2_quota_sync+0x2cc/0x4e8 fs/gfs2/quota.c:1329 gfs2_sync_fs+0x50/0xc8 fs/gfs2/super.c:663 sync_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x74/0x32c fs/super.c:474 kill_block_super+0x78/0xe0 fs/super.c:1481 gfs2_kill_sb+0xc4/0xd8 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x20f8/0x2c84 arch/arm64/kernel/signal.c:1166 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+0x9c/0x12c 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:589 Code: aa1f03e0 aa1503e1 52800022 97ffe380 (d4210000) ---[ end trace 0000000000000000 ]---