------------[ cut here ]------------
WARNING: CPU: 1 PID: 5981 at fs/udf/inode.c:1935 __udf_add_aext+0x51a/0x6c0 fs/udf/inode.c:1934
Modules linked in:
CPU: 1 PID: 5981 Comm: syz.4.340 Not tainted 5.15.180-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__udf_add_aext+0x51a/0x6c0 fs/udf/inode.c:1934
Code: 08 4c 89 f7 e8 b7 8e f9 fe 49 8b 3e 4c 89 e6 e8 ac 06 13 ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 06 21 b4 fe <0f> 0b e9 1b fc ff ff e8 fa 20 b4 fe 0f 0b e9 6f fd ff ff e8 ee 20
RSP: 0018:ffffc90003a5f868 EFLAGS: 00010287
RAX: ffffffff82c39c6a RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000eeec000 RSI: 00000000000140fb RDI: 00000000000140fc
RBP: 1ffff9200074bf79 R08: ffff88802a45d940 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000003d0
R13: 0000000000000000 R14: ffffc90003a5fbc0 R15: ffffc90003a5fbc8
FS:  00007f9512ca66c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c7ffbc2000 CR3: 00000000795d3000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x552/0x710 fs/udf/inode.c:1900
 udf_add_aext fs/udf/inode.c:1987 [inline]
 udf_do_extend_file+0x6aa/0x1030 fs/udf/inode.c:472
 udf_extend_file fs/udf/inode.c:586 [inline]
 udf_setsize+0xb08/0x1090 fs/udf/inode.c:1156
 udf_setattr+0x404/0x560 fs/udf/file.c:277
 notify_change+0xbcd/0xee0 fs/attr.c:505
 do_truncate+0x197/0x220 fs/open.c:65
 vfs_truncate+0x262/0x2f0 fs/open.c:111
 do_sys_truncate+0xdc/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9514e5f969
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:00007f9512ca6038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f9515087080 RCX: 00007f9514e5f969
RDX: 0000000000000000 RSI: 000000400000f000 RDI: 0000200000000080
RBP: 00007f9514ee1ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9515087080 R15: 00007ffd709eace8
 </TASK>