Re: KASAN: use-after-free Read in uif_close

From: Richard Weinberger
Date: Sun May 24 2020 - 04:12:01 EST


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> Von: "syzbot" <syzbot+0ce97ea45b008ba3b8bd@xxxxxxxxxxxxxxxxxxxxxxxxx>
> An: "Arnd Bergmann" <arnd@xxxxxxxx>, "daniel baluta" <daniel.baluta@xxxxxxx>, "festevam" <festevam@xxxxxxxxx>, "Greg
> Kroah-Hartman" <gregkh@xxxxxxxxxxxxxxxxxxx>, "kernel" <kernel@xxxxxxxxxxxxxx>, "linux-arm-kernel"
> <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, "linux-imx" <linux-imx@xxxxxxx>, "linux-kernel" <linux-kernel@xxxxxxxxxxxxxxx>,
> "linux-mtd" <linux-mtd@xxxxxxxxxxxxxxxxxxx>, linux@xxxxxxxxxxxxxxxx, "Miquel Raynal" <miquel.raynal@xxxxxxxxxxx>,
> "richard" <richard@xxxxxx>, "Sascha Hauer" <s.hauer@xxxxxxxxxxxxxx>, "shawnguo" <shawnguo@xxxxxxxxxx>,
> syzkaller-bugs@xxxxxxxxxxxxxxxx, "Vignesh Raghavendra" <vigneshr@xxxxxx>
> 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@xxxxxxxx>
> 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?

Thanks,
//richard