------------[ cut here ]------------ WARNING: CPU: 0 PID: 6711 at fs/udf/inode.c:2018 __udf_add_aext+0x574/0x710 Modules linked in: CPU: 1 PID: 6711 Comm: syz-executor.3 Not tainted 6.1.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__udf_add_aext+0x574/0x710 fs/udf/inode.c:2017 Code: 48 89 df e8 7e d7 dd fe 48 8b 3b be 18 00 00 00 e8 31 c3 02 00 43 80 3c 34 00 0f 85 d7 fe ff ff e9 da fe ff ff e8 4c fb 88 fe <0f> 0b e9 ce fb ff ff e8 40 fb 88 fe 0f 0b e9 34 fc ff ff e8 34 fb RSP: 0018:ffffc900035cecd0 EFLAGS: 00010283 RAX: ffffffff8300bb04 RBX: 1ffff920006b9e09 RCX: 0000000000040000 RDX: ffffc9000bbfd000 RSI: 0000000000014993 RDI: 0000000000014994 RBP: 00000000000001d0 R08: ffffffff8300b6cb R09: ffffffff8300b5f1 R10: 0000000000000002 R11: ffff888074701d40 R12: 0000000000000000 R13: ffffc900035cf040 R14: dffffc0000000000 R15: ffffc900035cf048 FS: 00007f7b891ec700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8934b811b8 CR3: 0000000026c06000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_setup_indirect_aext+0x681/0x940 fs/udf/inode.c:1983 udf_add_aext fs/udf/inode.c:2070 [inline] udf_insert_aext fs/udf/inode.c:2236 [inline] udf_update_extents fs/udf/inode.c:1190 [inline] inode_getblk fs/udf/inode.c:894 [inline] udf_get_block+0x399e/0x4d30 fs/udf/inode.c:443 __block_write_begin_int+0x57c/0x1ae0 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x93/0x1e0 fs/buffer.c:2102 udf_write_begin+0x2d/0x60 fs/udf/inode.c:212 generic_perform_write+0x314/0x610 mm/filemap.c:3753 __generic_file_write_iter+0x29b/0x400 mm/filemap.c:3849 udf_file_write_iter+0x325/0x5f0 fs/udf/file.c:170 do_iter_write+0x6f0/0xc50 fs/read_write.c:861 iter_file_splice_write+0x830/0xff0 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0xe6/0x1c0 fs/splice.c:931 splice_direct_to_actor+0x4e4/0xc00 fs/splice.c:886 do_splice_direct+0x2a0/0x3f0 fs/splice.c:974 do_sendfile+0x641/0xfd0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7b8848b639 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7b891ec168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f7b885abf80 RCX: 00007f7b8848b639 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00007f7b884e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeb0cbc02f R14: 00007f7b891ec300 R15: 0000000000022000