linux-kernel - Re: KASAN: use-after-free Read in si470x_int_in

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Date:   Wed, 27 Nov 2019 16:11:18 -0500 (EST)
From:   Alan Stern <stern@...land.harvard.edu>
To:     Oliver Neukum <oneukum@...e.com>,
        syzbot <syzbot+9ca7a12fd736d93e0232@...kaller.appspotmail.com>
cc:     andreyknvl@...gle.com, <hverkuil@...all.nl>,
        Kernel development list <linux-kernel@...r.kernel.org>,
        <linux-media@...r.kernel.org>,
        USB list <linux-usb@...r.kernel.org>, <mchehab@...nel.org>,
        <syzkaller-bugs@...glegroups.com>
Subject: Re: KASAN: use-after-free Read in si470x_int_in_callback (2)

Oliver:

Make of this what you will...

Alan Stern

On Wed, 27 Nov 2019, syzbot wrote:

> Hello,
> 
> syzbot has tested the proposed patch and the reproducer did not trigger  
> crash:
> 
> Reported-and-tested-by:  
> syzbot+9ca7a12fd736d93e0232@...kaller.appspotmail.com
> 
> Tested on:
> 
> commit:         22be26f7 usb-fuzzer: main usb gadget fuzzer driver
> git tree:       https://github.com/google/kasan.git
> kernel config:  https://syzkaller.appspot.com/x/.config?x=387eccb7ac68ec5
> dashboard link: https://syzkaller.appspot.com/bug?extid=9ca7a12fd736d93e0232
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=17d13f6ae00000
> 
> Note: testing is done by a robot and is best-effort only.