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:4264 [syz.0.50] gfs2_glock_nq_init fs/gfs2/glock.h:244 [inline] gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:4264 [syz.0.50] do_sync+0x320/0xa4c fs/gfs2/quota.c:921 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1503! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4264 Comm: syz.0.50 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : add_to_queue fs/gfs2/glock.c:1502 [inline] pc : gfs2_glock_nq+0xeac/0x141c fs/gfs2/glock.c:1527 lr : add_to_queue fs/gfs2/glock.c:1502 [inline] lr : gfs2_glock_nq+0xeac/0x141c fs/gfs2/glock.c:1527 sp : ffff800020017680 x29: ffff8000200176e0 x28: ffff0000e9763900 x27: ffff0000de4f2920 x26: ffff0000de4f28b0 x25: ffff0000e9763950 x24: ffff0000d6964000 x23: dfff800000000000 x22: ffff0000e9763938 x21: ffff0000de4f28a0 x20: ffff0000e976395a x19: ffff0000de4f28b8 x18: 0000000000000002 x17: 0000000000000002 x16: ffff8000111bc798 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000 x11: 0000000000011a7c x10: ffff8000213b9000 x9 : b2247fd6b04dcb00 x8 : b2247fd6b04dcb00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020016ad8 x4 : ffff80001424f400 x3 : ffff80000830220c x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: add_to_queue fs/gfs2/glock.c:1502 [inline] gfs2_glock_nq+0xeac/0x141c fs/gfs2/glock.c:1527 gfs2_glock_nq_init fs/gfs2/glock.h:246 [inline] do_sync+0x328/0xa4c fs/gfs2/quota.c:921 gfs2_quota_sync+0x2e8/0x548 fs/gfs2/quota.c:1329 gfs2_sync_fs+0x4c/0xc4 fs/gfs2/super.c:647 sync_filesystem+0xe8/0x218 fs/sync.c:56 gfs2_reconfigure+0xfc/0xa04 fs/gfs2/ops_fstype.c:1551 reconfigure_super+0x1d4/0x6f4 fs/super.c:938 do_remount fs/namespace.c:2670 [inline] path_mount+0xc80/0x1000 fs/namespace.c:3336 do_mount fs/namespace.c:3357 [inline] __do_sys_mount fs/namespace.c:3565 [inline] __se_sys_mount fs/namespace.c:3542 [inline] __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: aa1f03e0 aa1503e1 52800022 97ffe573 (d4210000) ---[ end trace 8ce3b98be66a90ea ]---