loop1: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,1) on (node local, slot 0) with writeback data mode.
------------[ cut here ]------------
kernel BUG at fs/ocfs2/aops.c:1180!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6614 Comm: syz.1.159 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1c75/0x1ca0 fs/ocfs2/aops.c:1241
Code: 4c 8b 03 48 8d bc 24 10 02 00 00 48 c7 c6 7e 53 62 8c ba 7f 04 00 00 48 c7 c1 00 90 e9 8a e8 92 3b 1a 00 0f 0b e8 2b 20 39 fe <0f> 0b e8 24 20 39 fe 0f 0b e8 1d 20 39 fe 0f 0b e8 16 20 39 fe 0f
RSP: 0018:ffffc90003a46d80 EFLAGS: 00010287
RAX: ffffffff834c7095 RBX: ffff88805d18a014 RCX: 0000000000080000
RDX: ffffc9000d4b1000 RSI: 0000000000012e3b RDI: 0000000000012e3c
RBP: ffffc90003a470b0 R08: ffff88805e0ddca3 R09: 1ffff1100bc1bb94
R10: dffffc0000000000 R11: ffffed100bc1bb95 R12: ffff88805a5a8000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88805d18a014
FS:  00007f0d09f196c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34b22ff8 CR3: 000000006b16c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ocfs2_write_begin_nolock+0x2fcb/0x4190 fs/ocfs2/aops.c:1817
 ocfs2_write_begin+0x1bc/0x310 fs/ocfs2/aops.c:1904
 generic_perform_write+0x2fb/0x5b0 mm/filemap.c:4031
 ocfs2_file_write_iter+0x1582/0x1d00 fs/ocfs2/file.c:2468
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x79a/0xc70 fs/read_write.c:860
 vfs_writev fs/read_write.c:933 [inline]
 do_writev+0x252/0x410 fs/read_write.c:976
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0d08f8f749
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f0d09f19038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f0d091e5fa0 RCX: 00007f0d08f8f749
RDX: 0000000000000004 RSI: 0000200000000140 RDI: 0000000000000004
RBP: 00007f0d09013f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0d091e6038 R14: 00007f0d091e5fa0 R15: 00007ffeb19467b8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
RIP: 0010:ocfs2_write_cluster_by_desc+0x1c75/0x1ca0 fs/ocfs2/aops.c:1241
Code: 4c 8b 03 48 8d bc 24 10 02 00 00 48 c7 c6 7e 53 62 8c ba 7f 04 00 00 48 c7 c1 00 90 e9 8a e8 92 3b 1a 00 0f 0b e8 2b 20 39 fe <0f> 0b e8 24 20 39 fe 0f 0b e8 1d 20 39 fe 0f 0b e8 16 20 39 fe 0f
RSP: 0018:ffffc90003a46d80 EFLAGS: 00010287
RAX: ffffffff834c7095 RBX: ffff88805d18a014 RCX: 0000000000080000
RDX: ffffc9000d4b1000 RSI: 0000000000012e3b RDI: 0000000000012e3c
RBP: ffffc90003a470b0 R08: ffff88805e0ddca3 R09: 1ffff1100bc1bb94
R10: dffffc0000000000 R11: ffffed100bc1bb95 R12: ffff88805a5a8000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88805d18a014
FS:  00007f0d09f196c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa1e8380000 CR3: 000000006b16c000 CR4: 00000000003526f0