loop2: detected capacity change from 0 to 32768
------------[ cut here ]------------
kernel BUG at fs/ocfs2/buffer_head_io.c:45!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7349 Comm: syz.2.687 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:ocfs2_write_block+0x5ca/0x640 fs/ocfs2/buffer_head_io.c:45
Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 cd 8c 8c fe 49 8b 3f 48 89 de 48 8b 54 24 08 e8 ad 6f 10 00 eb 22 e8 56 a4 42 fe <0f> 0b e8 4f a4 42 fe 0f 0b e8 08 6e 01 07 e8 43 a4 42 fe e9 4d fb
RSP: 0018:ffffc90002fbee00 EFLAGS: 00010283
RAX: ffffffff833de13a RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000c481000 RSI: 000000000000523c RDI: 000000000000523d
RBP: ffffc90002fbeed0 R08: ffffffff833ddccd R09: fffffbfff1c150ee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880609f3588
R13: dffffc0000000000 R14: ffff8880609f3570 R15: dffffc0000000001
FS:  00007f01db5596c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f219d869000 CR3: 000000002d1fc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_update_disk_slot+0x494/0x680 fs/ocfs2/slot_map.c:197
 ocfs2_find_slot+0x4b6/0xa60 fs/ocfs2/slot_map.c:482
 ocfs2_mount_volume+0x1a4/0x19e0 fs/ocfs2/super.c:1809
 ocfs2_fill_super+0x34ec/0x5890 fs/ocfs2/super.c:1083
 mount_bdev+0x2c9/0x3f0 fs/super.c:1400
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x2ba/0xb40 fs/namespace.c:3012
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f01dd6f158a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f01db558e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f01db558ef0 RCX: 00007f01dd6f158a
RDX: 0000400000004440 RSI: 0000400000000040 RDI: 00007f01db558eb0
RBP: 0000400000004440 R08: 00007f01db558ef0 R09: 00000000000008c0
R10: 00000000000008c0 R11: 0000000000000246 R12: 0000400000000040
R13: 00007f01db558eb0 R14: 0000000000004423 R15: 0000400000000440
 </TASK>
Modules linked in:
---[ end trace 4790e1a69be16033 ]---
RIP: 0010:ocfs2_write_block+0x5ca/0x640 fs/ocfs2/buffer_head_io.c:45
Code: 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ff e8 cd 8c 8c fe 49 8b 3f 48 89 de 48 8b 54 24 08 e8 ad 6f 10 00 eb 22 e8 56 a4 42 fe <0f> 0b e8 4f a4 42 fe 0f 0b e8 08 6e 01 07 e8 43 a4 42 fe e9 4d fb
RSP: 0018:ffffc90002fbee00 EFLAGS: 00010283
RAX: ffffffff833de13a RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000c481000 RSI: 000000000000523c RDI: 000000000000523d
RBP: ffffc90002fbeed0 R08: ffffffff833ddccd R09: fffffbfff1c150ee
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880609f3588
R13: dffffc0000000000 R14: ffff8880609f3570 R15: dffffc0000000001
FS:  00007f01db5596c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f219d869000 CR3: 000000002d1fc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400