loop0: detected capacity change from 0 to 2048 UDF-fs: warning (device loop0): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2048, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1024, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2048, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1024, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2048, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1024, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2048, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1024, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2050, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1025, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2050, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1025, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2050, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1025, lost async page write syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=2050, nr_sectors = 2 limit=2048 Buffer I/O error on dev loop0, logical block 1025, lost async page write ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5316 at fs/udf/truncate.c:224 udf_truncate_extents+0x10c8/0x1310 fs/udf/truncate.c:224 Modules linked in: CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 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_truncate_extents+0x10c8/0x1310 fs/udf/truncate.c:224 Code: 48 3b 84 24 a0 01 00 00 0f 85 4b 02 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 19 dd 74 fe 90 <0f> 0b 90 eb 8c 48 8d 8c 24 60 01 00 00 80 e1 07 80 c1 03 38 c1 0f RSP: 0018:ffffc9000d296d60 EFLAGS: 00010293 RAX: ffffffff832a9717 RBX: 00000000007fec00 RCX: ffff88801f3e4880 RDX: 0000000000000000 RSI: 00000000007fec00 RDI: 0000000000000000 RBP: ffffc9000d296f50 R08: ffffffff832a8b38 R09: ffffffff8328694d R10: 0000000000000002 R11: ffff88801f3e4880 R12: dffffc0000000000 R13: 00000000007fec00 R14: 0000000008800000 R15: 0000000000000000 FS: 00007fb0e7c786c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002000 CR3: 000000004028e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_do_extend_file+0xf0c/0x1280 fs/udf/inode.c:615 inode_getblk fs/udf/inode.c:835 [inline] udf_map_block+0x1896/0x5340 fs/udf/inode.c:447 __udf_get_block+0x126/0x410 fs/udf/inode.c:461 __block_write_begin_int+0x692/0x19a0 fs/buffer.c:2116 block_write_begin+0x8f/0x120 fs/buffer.c:2226 udf_write_begin+0xfc/0x250 fs/udf/inode.c:256 generic_perform_write+0x346/0x990 mm/filemap.c:4055 udf_file_write_iter+0x2fc/0x660 fs/udf/file.c:111 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_sys_pwritev2 fs/read_write.c:1204 [inline] __se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb0e6d85d29 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:00007fb0e7c78038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fb0e6f75fa0 RCX: 00007fb0e6d85d29 RDX: 0000000000000001 RSI: 00000000200000c0 RDI: 0000000000000005 RBP: 00007fb0e6e01aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000008003000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb0e6f75fa0 R15: 00007fff003c4918