linux-kernel - BUG: bad host encryption descriptor; descriptor is too short (1 vs 5 needed)

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Message-ID: <0000000000003bf3fb059fa247eb@google.com>
Date:   Fri, 28 Feb 2020 04:50:12 -0800
From:   syzbot <syzbot+2470d4931705e03b0977@...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 (1 vs 5 needed)

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=15cd9a81e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=90a3d9bed5648419
dashboard link: https://syzkaller.appspot.com/bug?extid=2470d4931705e03b0977
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15cfbd09e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=170e3645e00000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+2470d4931705e03b0977@...kaller.appspotmail.com

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=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 1-1:0.0: Wire Adapter v106.52 newer than groked v1.0
usb 1-1: BUG: bad host encryption descriptor; descriptor is too short (1 vs 5 needed)
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

---
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