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SubjectRe: KASAN: use-after-free Read in uif_close
On Sun, May 24, 2020 at 10:09 AM Richard Weinberger <richard@nod.at> wrote:
>
> ----- Ursprüngliche Mail -----
> > Von: "syzbot" <syzbot+0ce97ea45b008ba3b8bd@syzkaller.appspotmail.com>
> > An: "Arnd Bergmann" <arnd@arndb.de>, "daniel baluta" <daniel.baluta@nxp.com>, "festevam" <festevam@gmail.com>, "Greg
> > Kroah-Hartman" <gregkh@linuxfoundation.org>, "kernel" <kernel@pengutronix.de>, "linux-arm-kernel"
> > <linux-arm-kernel@lists.infradead.org>, "linux-imx" <linux-imx@nxp.com>, "linux-kernel" <linux-kernel@vger.kernel.org>,
> > "linux-mtd" <linux-mtd@lists.infradead.org>, linux@rempel-privat.de, "Miquel Raynal" <miquel.raynal@bootlin.com>,
> > "richard" <richard@nod.at>, "Sascha Hauer" <s.hauer@pengutronix.de>, "shawnguo" <shawnguo@kernel.org>,
> > syzkaller-bugs@googlegroups.com, "Vignesh Raghavendra" <vigneshr@ti.com>
> > Gesendet: Sonntag, 24. Mai 2020 08:03:03
> > Betreff: Re: KASAN: use-after-free Read in uif_close
>
> > syzbot has bisected this bug to:
> >
> > commit 32ec783ae19d48084b893cc54747fed37b07eb0c
> > Author: Arnd Bergmann <arnd@arndb.de>
> > Date: Wed Apr 8 19:02:57 2020 +0000
> >
> > firmware: imx: fix compile-testing
>
> Hmm, from a quick check I don't see how this is related.
> Arnd?

I suppose this was a randconfig build for a configuration that did not build
until I fixed the build stage, and then it failed at runtime, so the bug would
have been in earlier releases as well, it was just not observed.

Arnd

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