loop0: detected capacity change from 0 to 2048 UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: warning (device loop0): 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: 5327 at fs/udf/inode.c:2077 __udf_add_aext+0x540/0x6d0 fs/udf/inode.c:2076 Modules linked in: CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__udf_add_aext+0x540/0x6d0 fs/udf/inode.c:2076 Code: 5f 5d c3 cc cc cc cc cc e8 fd 52 8a fe 90 0f 0b 90 e9 14 fc ff ff e8 ef 52 8a fe 90 0f 0b 90 e9 66 fd ff ff e8 e1 52 8a 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:ffffc9000d347180 EFLAGS: 00010283 RAX: ffffffff8336098f RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc9000e1d2000 RSI: 000000000000024e RDI: 000000000000024f RBP: 0000000000000010 R08: ffff888000bb2440 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000000b0 R13: 0000000000000000 R14: ffffc9000d3475a0 R15: 0000000000000000 FS: 00007f8ebaf5d6c0(0000) GS:ffff88808d25c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8eaefff000 CR3: 0000000011817000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 do_iter_readv_writev+0x56e/0x7f0 fs/read_write.c:-1 vfs_writev+0x31a/0x960 fs/read_write.c:1057 do_pwritev fs/read_write.c:1153 [inline] __do_sys_pwritev2 fs/read_write.c:1211 [inline] __se_sys_pwritev2+0x179/0x290 fs/read_write.c:1202 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: 0033:0x7f8eba18e929 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:00007f8ebaf5d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f8eba3b5fa0 RCX: 00007f8eba18e929 RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000005 RBP: 00007f8eba210ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000005406 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8eba3b5fa0 R15: 00007fff154670a8