linux-kernel - BUG: bad host encryption descriptor; descriptor is too short (0 vs 5 needed)

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Date:   Mon, 28 Oct 2019 06:02:09 -0700
From:   syzbot <syzbot+48fbe2f8fdcd2fbc1242@...kaller.appspotmail.com>
To:     andreyknvl@...gle.com, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: BUG: bad host encryption descriptor; descriptor is too short (0 vs 5 needed)

Hello,

syzbot found the following crash on:

HEAD commit:    22be26f7 usb-fuzzer: main usb gadget fuzzer driver
git tree:       https://github.com/google/kasan.git usb-fuzzer
console output: https://syzkaller.appspot.com/x/log.txt?x=16eccc0f600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5fe29bc39eff9627
dashboard link: https://syzkaller.appspot.com/bug?extid=48fbe2f8fdcd2fbc1242
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10d08e4ce00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11fb07ff600000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+48fbe2f8fdcd2fbc1242@...kaller.appspotmail.com

usb 1-1: config 0 interface 66 altsetting 0 has 3 endpoint descriptors,  
different from the interface descriptor's value: 4
usb 1-1: New USB device found, idVendor=13dc, idProduct=5611,  
bcdDevice=40.15
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
hwa-hc 1-1:0.66: Wire Adapter v125.52 newer than groked v1.0
hwa-hc 1-1:0.66: FIXME: USB_MAXCHILDREN too low for WUSB adapter (53 ports)
usb 1-1: BUG: bad host encryption descriptor; descriptor is too short (0 vs  
5 needed)
usb 1-1: supported encryption types: ���ρ���|��ρ������ρ���
usb 1-1: E: host doesn't support CCM-1 crypto
hwa-hc 1-1:0.66: 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@...glegroups.com.

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syzbot can test patches for this bug, for details see:
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