linux-kernel - Re: BUG: bad host encryption descriptor; descriptor is too short (3 vs 5 needed)

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Message-ID: <CAAeHK+y2WZpj9jKMqZLZe5J9LxtdxaMeqA=9hGE=70fTL6s8sA@mail.gmail.com>
Date:   Mon, 24 Feb 2020 14:31:06 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     syzbot <syzbot+069037c83014b5536cb7@...kaller.appspotmail.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: BUG: bad host encryption descriptor; descriptor is too short (3
 vs 5 needed)

On Mon, Feb 24, 2020 at 2:28 PM syzbot
<syzbot+069037c83014b5536cb7@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    307a2623 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=13fa7a29e00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=cf0c83d9cbd23d52
> dashboard link: https://syzkaller.appspot.com/bug?extid=069037c83014b5536cb7
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12acfe09e00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1613d1b5e00000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+069037c83014b5536cb7@...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 (3 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
>
>
> ---
> 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.
>
> 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

#syz dup: BUG: bad host security descriptor; not enough data (4 vs 5 left)