gfs2: fsid=syz:syz.0: G: s:SH n:1/2 f:qb t:SH d:EX/0 a:0 v:0 r:4 m:20 p:0 gfs2: fsid=syz:syz.0: H: s:SH f:eEH e:0 p:4551 [syz.1.39] gfs2_fill_super+0x12c4/0x19e0 fs/gfs2/ops_fstype.c:1266 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1560! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4551 Comm: syz.1.39 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : add_to_queue fs/gfs2/glock.c:1559 [inline] pc : gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1585 lr : add_to_queue fs/gfs2/glock.c:1559 [inline] lr : gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1585 sp : ffff8000217a7980 x29: ffff8000217a79c0 x28: 0000000000000084 x27: dfff800000000000 x26: ffff0000f6f53640 x25: ffff0000d96351a0 x24: ffff0000d96351a0 x23: 0000000000000000 x22: ffff8000217a7ae2 x21: ffff0000e2494960 x20: ffff0000e2494978 x19: 0000000000000001 x18: 1fffe00033e7ff7e x17: 5f32736667205d39 x16: ffff800011b3e320 x15: 20313535343a7020 x14: 0000000000000001 x13: 1ffff000042f4df0 x12: 0000000000080000 x11: 000000000001fc04 x10: ffff80002264a000 x9 : 119c9782cc479400 x8 : 119c9782cc479400 x7 : 0000000000000000 x6 : 0000000000000001 x5 : ffff8000217a6f98 x4 : 0000000000000000 x3 : ffff80000831d018 x2 : ffffffffffffffc0 x1 : 0000000000000000 x0 : ffff7000042f4ee0 Call trace: add_to_queue fs/gfs2/glock.c:1559 [inline] gfs2_glock_nq+0xeb4/0x11c4 fs/gfs2/glock.c:1585 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline] gfs2_freeze_lock_shared+0x94/0x10c fs/gfs2/util.c:108 gfs2_reconfigure+0x56c/0xab4 fs/gfs2/ops_fstype.c:1587 reconfigure_super+0x1d4/0x7cc fs/super.c:977 do_remount fs/namespace.c:2741 [inline] path_mount+0xc98/0xe6c fs/namespace.c:3400 do_mount fs/namespace.c:3421 [inline] __do_sys_mount fs/namespace.c:3629 [inline] __se_sys_mount fs/namespace.c:3606 [inline] __arm64_sys_mount+0x4a0/0x5a0 fs/namespace.c:3606 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 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 aa1503e1 52800022 97ffe35b (d4210000) ---[ end trace 0000000000000000 ]---