------------[ cut here ]------------
WARNING: CPU: 0 PID: 8707 at fs/udf/inode.c:1932 __udf_add_aext+0x54c/0x6f0 fs/udf/inode.c:-1
Modules linked in:
CPU: 0 PID: 8707 Comm: syz.9.751 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__udf_add_aext+0x54c/0x6f0 fs/udf/inode.c:1931
Code: 4c 89 e7 e8 06 6a d9 fe 49 8b 3c 24 4c 89 fe e8 aa 87 f8 fe 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 74 0a 82 fe <0f> 0b e9 ed fb ff ff e8 68 0a 82 fe 0f 0b e9 5c fc ff ff e8 5c 0a
RSP: 0018:ffffc9000539f6f8 EFLAGS: 00010287
RAX: ffffffff8308422c RBX: 1ffff92000a73f5d RCX: 0000000000080000
RDX: ffffc90005e99000 RSI: 00000000000116fe RDI: 00000000000116ff
RBP: 00000000000003d0 R08: ffffffff83083e12 R09: ffffffff83083d42
R10: 0000000000000002 R11: ffff888076b99dc0 R12: ffffc9000539fae0
R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000539fae8
FS:  00007fae9df546c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563e007e6680 CR3: 0000000066a8f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setup_indirect_aext+0x727/0xa50 fs/udf/inode.c:1894
 udf_add_aext fs/udf/inode.c:1984 [inline]
 udf_do_extend_file+0x6df/0x1140 fs/udf/inode.c:450
 udf_extend_file fs/udf/inode.c:564 [inline]
 udf_setsize+0xd4b/0x1440 fs/udf/inode.c:1147
 udf_setattr+0x36c/0x540 fs/udf/file.c:279
 notify_change+0xce3/0xfc0 fs/attr.c:499
 do_truncate+0x21c/0x300 fs/open.c:65
 vfs_truncate+0x2dd/0x3a0 fs/open.c:111
 do_sys_truncate+0xda/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fae9d18e169
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:00007fae9df54038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007fae9d3b6080 RCX: 00007fae9d18e169
RDX: 0000000000000000 RSI: 000000400000f000 RDI: 0000200000000080
RBP: 00007fae9d210a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fae9d3b6080 R15: 00007ffde5fd57c8
 </TASK>