linux-kernel - Re: KASAN: use-after-free Write in snd_rawmidi_kernel

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Message-ID: <s5hbln05b1h.wl-tiwai@suse.de>
Date:   Thu, 07 May 2020 11:50:18 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     butt3rflyh4ck <butterflyhuangxx@...il.com>
Cc:     security@...nel.org, syzkaller <syzkaller@...glegroups.com>,
        tiwai@...e.com, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: KASAN: use-after-free Write in snd_rawmidi_kernel_write1

On Thu, 07 May 2020 09:54:34 +0200,
butt3rflyh4ck wrote:
> 
> I report a bug (in linux-5.7-rc1) found by syzkaller.
> 
> kernel config: 
> https://github.com/butterflyhack/syzkaller-fuzz/blob/master/v5.7.0-rc1.config
> reproducer: 
> https://github.com/butterflyhack/syzkaller-fuzz/blob/master/repro.cprog

Is this report different from your another one?
  https://lore.kernel.org/r/CAFcO6XMGT42wFBxEa01Ee5Msuecm+WiXnn4rc-VWkC4vTzycPg@mail.gmail.com


thanks,

Takashi