loop1: detected capacity change from 0 to 32768
------------[ 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 PID: 4764 Comm: syz.1.53 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_write_block+0x610/0x728 fs/ocfs2/buffer_head_io.c:45
lr : ocfs2_write_block+0x610/0x728 fs/ocfs2/buffer_head_io.c:45
sp : ffff800020ef6c00
x29: ffff800020ef6ca0 x28: 1fffe00018cd5003 x27: dfff800000000000
x26: ffff800020ef6c20 x25: ffff7000041ded84 x24: ffff8000150bd360
x23: 0000000000000002 x22: 0000000000000000 x21: ffff0000dac10000
x20: ffff0000c66a8000 x19: ffff0000e06932f0 x18: ffff800011abbcc0
x17: ffff8000181f8000 x16: ffff8000082e7b1c x15: 0000000000000002
x14: 0000000000000012 x13: 1ffff00002a180b1 x12: 0000000000080000
x11: 00000000000456d6 x10: ffff800022499000 x9 : ffff800009cefdd8
x8 : 00000000000456d7 x7 : ffff800009dabf6c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082e7c30
x2 : ffff0000e06932f0 x1 : 0000000000000000 x0 : 0000000000000002
Call trace:
 ocfs2_write_block+0x610/0x728 fs/ocfs2/buffer_head_io.c:45
 ocfs2_update_disk_slot+0x3d4/0x5a8 fs/ocfs2/slot_map.c:197
 ocfs2_find_slot+0x428/0x9d8 fs/ocfs2/slot_map.c:482
 ocfs2_mount_volume+0x168/0x1164 fs/ocfs2/super.c:1806
 ocfs2_fill_super+0x2b50/0x3e98 fs/ocfs2/super.c:1082
 mount_bdev+0x264/0x358 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+0x228/0x810 fs/namespace.c:3069
 path_mount+0x5b4/0xe78 fs/namespace.c:3399
 do_mount fs/namespace.c:3412 [inline]
 __do_sys_mount fs/namespace.c:3620 [inline]
 __se_sys_mount fs/namespace.c:3597 [inline]
 __arm64_sys_mount+0x49c/0x584 fs/namespace.c:3597
 __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+0x58/0x138 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: b4000917 979ec6b3 17fffeac 979ec6b1 (d4210000) 
---[ end trace 0000000000000000 ]---