UDF-fs: warning (device loop3): udf_truncate_tail_extent: Too long extent after EOF in inode 1346: i_size: 0 lbcount: 4096 extent 6+4096
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5914 at fs/udf/inode.c:2077 __udf_add_aext+0x540/0x6d0 fs/udf/inode.c:2076
Modules linked in:
CPU: 0 UID: 0 PID: 5914 Comm: syz.3.4 Not tainted 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__udf_add_aext+0x540/0x6d0 fs/udf/inode.c:2076
Code: 5f 5d e9 03 90 2c 08 cc e8 0d 82 8c fe 90 0f 0b 90 e9 14 fc ff ff e8 ff 81 8c fe 90 0f 0b 90 e9 66 fd ff ff e8 f1 81 8c fe 90 <0f> 0b 90 e9 50 fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c f7
RSP: 0018:ffffc90004f57300 EFLAGS: 00010287
RAX: ffffffff8333c97f RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000cc2c000 RSI: 00000000000002ef RDI: 00000000000002f0
RBP: 0000000000000010 R08: ffff88802fda5a00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000000b0
R13: 0000000000000000 R14: ffffc90004f57720 R15: 0000000000000000
FS:  00007fb075bdc6c0(0000) GS:ffff888125c90000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001680 CR3: 000000002548a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_add_aext fs/udf/inode.c:2138 [inline]
 udf_do_extend_file+0x576/0x1180 fs/udf/inode.c:544
 inode_getblk fs/udf/inode.c:836 [inline]
 udf_map_block+0xf64/0x42a0 fs/udf/inode.c:447
 __udf_get_block+0x52/0x250 fs/udf/inode.c:461
 __block_write_begin_int+0x6b5/0x1900 fs/buffer.c:2151
 block_write_begin+0x8a/0x120 fs/buffer.c:2262
 udf_write_begin+0x100/0x260 fs/udf/inode.c:256
 generic_perform_write+0x2c7/0x910 mm/filemap.c:4112
 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x548/0xa90 fs/read_write.c:686
 ksys_pwrite64 fs/read_write.c:793 [inline]
 __do_sys_pwrite64 fs/read_write.c:801 [inline]
 __se_sys_pwrite64 fs/read_write.c:798 [inline]
 __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb074d8e969
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:00007fb075bdc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fb074fb5fa0 RCX: 00007fb074d8e969
RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000005
RBP: 00007fb074e10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb074fb5fa0 R15: 00007ffe670acfc8
 </TASK>