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Groups > linux.kernel > #1736912

Re: usb/storage/uas: slab-out-of-bounds in uas_probe

From Andrey Konovalov <andreyknvl@google.com>
Newsgroups linux.kernel
Subject Re: usb/storage/uas: slab-out-of-bounds in uas_probe
Date 2017-09-21 19:20 +0200
Message-ID <usdiO-3Se-29@gated-at.bofh.it> (permalink)
References <usbK2-2QA-19@gated-at.bofh.it> <uscZr-3vW-15@gated-at.bofh.it>
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On Thu, Sep 21, 2017 at 6:50 PM, Alan Stern <stern@rowland.harvard.edu> wrote:
> On Thu, 21 Sep 2017, Andrey Konovalov wrote:
>
>> Hi!
>>
>> I've got the following report while fuzzing the kernel with syzkaller.
>>
>> On commit ebb2c2437d8008d46796902ff390653822af6cc4 (Sep 18).
>>
>> The issue occurs when we iterate over interface altsettings, but I
>> don't see the driver doing anything wrong. I might be missing
>> something, or this might be an issue in USB core altsettings parsing.
>
> My guess is the latter, although I can't see what is going wrong.  Can
> you provide the code that does this?

I did, see the previous email (replying in case you missed it).

>
> Alan Stern
>

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Thread

usb/storage/uas: slab-out-of-bounds in uas_probe Andrey Konovalov <andreyknvl@google.com> - 2017-09-21 17:40 +0200
  Re: usb/storage/uas: slab-out-of-bounds in uas_probe Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-09-21 18:20 +0200
  Re: usb/storage/uas: slab-out-of-bounds in uas_probe Alan Stern <stern@rowland.harvard.edu> - 2017-09-21 19:00 +0200
    Re: usb/storage/uas: slab-out-of-bounds in uas_probe Andrey Konovalov <andreyknvl@google.com> - 2017-09-21 19:20 +0200

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