------------[ cut here ]------------
WARNING: CPU: 0 PID: 8417 at fs/udf/inode.c:2047 __udf_add_aext+0x550/0x6f0
Modules linked in:
CPU: 0 PID: 8417 Comm: syz-executor.4 Not tainted 6.6.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__udf_add_aext+0x550/0x6f0 fs/udf/inode.c:2046
Code: 4c 89 e7 e8 92 01 e1 fe 49 8b 3c 24 4c 89 fe e8 36 90 01 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c0 84 86 fe <0f> 0b e9 ed fb ff ff e8 b4 84 86 fe 0f 0b e9 5c fc ff ff e8 a8 84
RSP: 0018:ffffc9000a90eb18 EFLAGS: 00010246
RAX: ffffffff83078630 RBX: 1ffff92001521dfd RCX: 0000000000040000
RDX: ffffc9000c22b000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000000 R08: ffffffff83078216 R09: ffffffff83078146
R10: 0000000000000002 R11: ffff888065921dc0 R12: ffffc9000a90efe0
R13: 0000000000000004 R14: dffffc0000000000 R15: ffffc9000a90efe8
FS:  00007f93a097c6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d7a8f8 CR3: 000000007a593000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2104 [inline]
 udf_do_extend_file+0xcb5/0x11e0 fs/udf/inode.c:586
 inode_getblk fs/udf/inode.c:816 [inline]
 udf_map_block+0x18d1/0x5560 fs/udf/inode.c:444
 __udf_get_block+0x126/0x410 fs/udf/inode.c:458
 __block_write_begin_int+0x54d/0x1ac0 fs/buffer.c:2120
 __block_write_begin fs/buffer.c:2169 [inline]
 block_write_begin+0x9b/0x1e0 fs/buffer.c:2228
 udf_write_begin+0x10d/0x1a0 fs/udf/inode.c:261
 generic_perform_write+0x31b/0x630 mm/filemap.c:3969
 udf_file_write_iter+0x2fd/0x660 fs/udf/file.c:111
 do_iter_write+0x84f/0xde0 fs/read_write.c:860
 iter_file_splice_write+0x86d/0x1010 fs/splice.c:736
 do_splice_from fs/splice.c:933 [inline]
 direct_splice_actor+0xea/0x1c0 fs/splice.c:1142
 splice_direct_to_actor+0x376/0x9e0 fs/splice.c:1088
 do_splice_direct+0x2ac/0x3f0 fs/splice.c:1194
 do_sendfile+0x623/0x1070 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f939fc7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f93a097c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f939fd9bf80 RCX: 00007f939fc7cae9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f939fcc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f939fd9bf80 R15: 00007ffdf6144ca8
 </TASK>