ocfs2: Slot 0 on device (7,3) was already allocated to this node!
------------[ cut here ]------------
kernel BUG at fs/ocfs2/buffer_head_io.c:45!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5130 Comm: syz.3.121 Tainted: G        W          6.1.121-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_write_block+0x66c/0x7bc fs/ocfs2/buffer_head_io.c:45
lr : ocfs2_write_block+0x66c/0x7bc fs/ocfs2/buffer_head_io.c:45
sp : ffff8000216069e0
x29: ffff800021606a80 x28: 1fffe0001c58fbb6 x27: ffff800021606a00
x26: dfff800000000000 x25: ffff7000042c0d40 x24: ffff800015a8d360
x23: 0000000000000001 x22: 0000000000000000 x21: ffff0000da974000
x20: ffff0000e2c7dd98 x19: ffff0000e2e424b0 x18: 1fffe0003679bf76
x17: 65646f6e20736968 x16: ffff80001232c2f4 x15: 0000000000000002
x14: 1ffff00002b520b2 x13: dfff800000000000 x12: 0000000000080000
x11: 000000000003ecda x10: ffff800025a39000 x9 : ffff800009f0f698
x8 : 000000000003ecdb x7 : ffff800009fe4e54 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000831a134
x2 : ffff0000e2e424b0 x1 : 0000000000000000 x0 : 0000000000000002
Call trace:
 ocfs2_write_block+0x66c/0x7bc fs/ocfs2/buffer_head_io.c:45
 ocfs2_update_disk_slot+0x3e8/0x5ec fs/ocfs2/slot_map.c:197
 ocfs2_find_slot+0x490/0xac0 fs/ocfs2/slot_map.c:482
 ocfs2_mount_volume+0x170/0x1508 fs/ocfs2/super.c:1806
 ocfs2_fill_super+0x30bc/0x48c4 fs/ocfs2/super.c:1082
 mount_bdev+0x274/0x370 fs/super.c:1443
 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1186
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 do_new_mount+0x278/0x8fc fs/namespace.c:3056
 path_mount+0x590/0xe5c fs/namespace.c:3386
 do_mount fs/namespace.c:3399 [inline]
 __do_sys_mount fs/namespace.c:3607 [inline]
 __se_sys_mount fs/namespace.c:3584 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3584
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 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: b40005f7 979792bc 17fffe95 979792ba (d4210000) 
---[ end trace 0000000000000000 ]---