Hello, syzbot found the following crash on: HEAD commit: d6ff8147 usb: gadget: add raw-gadget interface git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=159c5d29e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=90a3d9bed5648419 dashboard link: https://syzkaller.appspot.com/bug?extid=52be5a94ed1c3d6bf9ce compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12c172c3e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1461ee65e00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+52be5a94ed1c3d6bf9ce@xxxxxxxxxxxxxxxxxxxxxxxxx usb 1-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 4 usb 1-1: New USB device found, idVendor=13dc, idProduct=56fc, bcdDevice=40.15 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? hwa-hc 1-1:0.0: Wire Adapter v106.52 newer than groked v1.0 usb 1-1: BUG: bad host security descriptor; not enough data (1 vs 5 left) usb 1-1: supported encryption types: usb 1-1: E: host doesn't support CCM-1 crypto hwa-hc 1-1:0.0: Cannot initialize internals: -19 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches