linux-kernel - BUG: bad host security descriptor; not enough data (3 vs 5 left)

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Message-ID: <000000000000029d340599e61e11@google.com>
Date:   Tue, 17 Dec 2019 05:15:08 -0800
From:   syzbot <syzbot+7b2f76fab6cdba59689b@...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 security descriptor; not enough data (3 vs 5 left)

Hello,

syzbot found the following crash on:

HEAD commit:    4cc037ec 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=17597049e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a2d3f61a19fd0cf1
dashboard link: https://syzkaller.appspot.com/bug?extid=7b2f76fab6cdba59689b
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1724ae99e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17ed23a6e00000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+7b2f76fab6cdba59689b@...kaller.appspotmail.com

usb 1-1: config 0 interface 0 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=2f.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
hwa-hc 1-1:0.0: FIXME: USB_MAXCHILDREN too low for WUSB adapter (194 ports)
usb 1-1: BUG: bad host security descriptor; not enough data (3 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: Wireless USB HWA host controller
hwa-hc 1-1:0.0: new USB bus registered, assigned bus number 11

---
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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