------------[ cut here ]------------
WARNING: CPU: 1 PID: 11966 at fs/udf/inode.c:2081 __udf_add_aext+0x51e/0x6d0 fs/udf/inode.c:2080
Modules linked in:
CPU: 1 PID: 11966 Comm: syz.5.1311 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__udf_add_aext+0x51e/0x6d0 fs/udf/inode.c:2080
Code: 08 4c 89 f7 e8 73 e0 e6 fe 49 8b 3e 4c 89 e6 e8 98 94 05 ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 92 71 8f fe <0f> 0b e9 1b fc ff ff e8 86 71 8f fe 0f 0b e9 6f fd ff ff e8 7a 71
RSP: 0018:ffffc90003bd6d40 EFLAGS: 00010246
RAX: ffffffff82f62eee RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000d52c000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 1ffff9200077ae2d R08: ffff888018fe3c00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000001 R14: ffffc90003bd7160 R15: ffffc90003bd7168
FS:  00007fe4b9fea6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc8f4a2e24 CR3: 000000006385f000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2138 [inline]
 udf_do_extend_file+0xd3b/0x1170 fs/udf/inode.c:598
 inode_getblk fs/udf/inode.c:840 [inline]
 udf_map_block+0xfd8/0x4500 fs/udf/inode.c:451
 __udf_get_block+0x53/0x250 fs/udf/inode.c:465
 __block_write_begin_int+0x566/0x1ad0 fs/buffer.c:2124
 __block_write_begin fs/buffer.c:2173 [inline]
 block_write_begin+0x9a/0x1e0 fs/buffer.c:2234
 udf_write_begin+0x1c0/0x430 fs/udf/inode.c:261
 generic_perform_write+0x2fb/0x5b0 mm/filemap.c:4031
 udf_file_write_iter+0x2c0/0x620 fs/udf/file.c:111
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x79a/0xc70 fs/read_write.c:860
 iter_file_splice_write+0x66f/0xc50 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0xe8/0x130 fs/splice.c:1142
 splice_direct_to_actor+0x2f0/0x870 fs/splice.c:1088
 do_splice_direct+0x1b7/0x2c0 fs/splice.c:1194
 do_sendfile+0x5dc/0xf70 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x13f/0x190 fs/read_write.c:1308
 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: 0033:0x7fe4b918f749
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:00007fe4b9fea038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fe4b93e6090 RCX: 00007fe4b918f749
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007fe4b9213f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe4b93e6128 R14: 00007fe4b93e6090 R15: 00007ffc7faaf218
 </TASK>