ocfs2: Slot 0 on device (7,1) 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: 1 UID: 0 PID: 8790 Comm: syz.1.332 Not tainted 6.14.0-rc4-syzkaller-ge056da87c780 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_write_block+0x634/0x75c fs/ocfs2/buffer_head_io.c:45
lr : ocfs2_write_block+0x634/0x75c fs/ocfs2/buffer_head_io.c:45
sp : ffff80009d356ac0
x29: ffff80009d356b60 x28: 1fffe0001e2fc003 x27: ffff80009d356ae0
x26: dfff800000000000 x25: ffff700013a6ad5c x24: ffff80008fbbd600
x23: 0000000000000002 x22: 0000000000000000 x21: ffff0000e7934000
x20: ffff0000f17e0000 x19: ffff0000dce04130 x18: 1fffe000366f6086
x17: ffff80008fbbd000 x16: ffff8000832b5180 x15: 0000000000000001
x14: 1fffe000366f8af0 x13: ffff80009d358000 x12: 0000000000000003
x11: 0000000000080000 x10: 000000000000fed1 x9 : ffff8000a4809000
x8 : 000000000000fed2 x7 : ffff8000803d4bd8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : ffff0000dce04130 x1 : 0000000000000000 x0 : 0000000000000002
Call trace:
 ocfs2_write_block+0x634/0x75c fs/ocfs2/buffer_head_io.c:45 (P)
 ocfs2_update_disk_slot+0x3e8/0x5ec fs/ocfs2/slot_map.c:197
 ocfs2_find_slot+0x458/0xa10 fs/ocfs2/slot_map.c:482
 ocfs2_mount_volume fs/ocfs2/super.c:1749 [inline]
 ocfs2_fill_super+0x3d1c/0x60fc fs/ocfs2/super.c:1083
 get_tree_bdev_flags+0x38c/0x494 fs/super.c:1636
 get_tree_bdev+0x2c/0x3c fs/super.c:1659
 ocfs2_get_tree+0x28/0x38 fs/ocfs2/super.c:1184
 vfs_get_tree+0x90/0x28c fs/super.c:1814
 do_new_mount+0x278/0x900 fs/namespace.c:3560
 path_mount+0x590/0xe04 fs/namespace.c:3887
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount fs/namespace.c:4088 [inline]
 __arm64_sys_mount+0x4f4/0x5d0 fs/namespace.c:4088
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: b40005f7 97939154 17fffea3 97939152 (d4210000) 
---[ end trace 0000000000000000 ]---