loop0: detected capacity change from 0 to 2048 udf: Unknown parameter 'SUs_^0; n*uּoɭaEsb&(Kߚ>fA/V+أúӔ%{ֽs' loop0: detected capacity change from 0 to 2048 UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) ------------[ cut here ]------------ le32_to_cpu(aed->lengthAllocDescs) != epos->offset - sizeof(struct allocExtDesc) WARNING: fs/udf/inode.c:2085 at __udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2084, CPU#0: syz.0.0/5341 Modules linked in: CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__udf_add_aext+0x524/0x6d0 fs/udf/inode.c:2084 Code: 01 dc fe 49 8b 3e 4c 89 e6 e8 18 ff 01 ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d3 0a 5f 08 cc e8 dd 20 70 fe 90 <0f> 0b 90 e9 14 fc ff ff e8 cf 20 70 fe 90 0f 0b 90 e9 66 fd ff ff RSP: 0018:ffffc9000e19f248 EFLAGS: 00010287 RAX: ffffffff8355add3 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc9000ed22000 RSI: 0000000000015c70 RDI: 0000000000015c71 RBP: 1ffff92001c33ee5 R08: ffff888032b6a4c0 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000002 R12: 00000000000001d0 R13: 0000000000000000 R14: ffffc9000e19f720 R15: ffffc9000e19f728 FS: 00007f1ab207e6c0(0000) GS:ffff88808ca49000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f12a9960000 CR3: 000000003946b000 CR4: 0000000000352ef0 Call Trace: udf_setup_indirect_aext+0x609/0x800 fs/udf/inode.c:2047 udf_add_aext fs/udf/inode.c:2137 [inline] udf_do_extend_file+0x8a5/0x11e0 fs/udf/inode.c:588 inode_getblk fs/udf/inode.c:840 [inline] udf_map_block+0xfff/0x4330 fs/udf/inode.c:451 __udf_get_block+0x52/0x250 fs/udf/inode.c:465 __block_write_begin_int+0x6c6/0x1910 fs/buffer.c:2142 block_write_begin+0x8d/0x120 fs/buffer.c:2253 udf_write_begin+0x118/0x270 fs/udf/inode.c:259 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4324 udf_file_write_iter+0x2ca/0x6b0 fs/udf/file.c:112 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61d/0xb90 fs/read_write.c:688 ksys_pwrite64 fs/read_write.c:795 [inline] __do_sys_pwrite64 fs/read_write.c:803 [inline] __se_sys_pwrite64 fs/read_write.c:800 [inline] __x64_sys_pwrite64+0x199/0x230 fs/read_write.c:800 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ab119c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1ab207dfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f1ab1415fa0 RCX: 00007f1ab119c819 RDX: 0000000000000001 RSI: 0000200000000300 RDI: 0000000000000008 RBP: 00007f1ab1232c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000010000000005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1ab1416038 R14: 00007f1ab1415fa0 R15: 00007fff0afbfac8