From: Phillip Potter <phil@philpotter.co.uk>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
Linux Fbdev development list <linux-fbdev@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
DRI Development <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH] zero-fill colormap in drivers/video/fbdev/core/fbcmap.c
Date: Fri, 2 Apr 2021 09:57:00 +0100 [thread overview]
Message-ID: <YGbcXMfP5pbCkG/9@equinox> (raw)
In-Reply-To: <CAMuHMdVh9JPZKphSi5+KR+BMJL7cQpVifrPBzhR3ees8QBhBXw@mail.gmail.com>
On Thu, Apr 01, 2021 at 11:55:50AM +0200, Geert Uytterhoeven wrote:
> On Thu, Apr 1, 2021 at 12:09 AM Phillip Potter <phil@philpotter.co.uk> wrote:
> > Use kzalloc() rather than kmalloc() for the dynamically allocated parts
> > of the colormap in fb_alloc_cmap_gfp, to prevent a leak of random kernel
> > data to userspace under certain circumstances.
> >
> > Fixes a KMSAN-found infoleak bug reported by syzbot at:
> > https://syzkaller.appspot.com/bug?id=741578659feabd108ad9e06696f0c1f2e69c4b6e
> >
> > Reported-by: syzbot+47fa9c9c648b765305b9@syzkaller.appspotmail.com
> > Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
Dear Geert
Thank you for your review :-)
Regards,
Phil
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next prev parent reply other threads:[~2021-04-02 8:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 22:07 [PATCH] zero-fill colormap in drivers/video/fbdev/core/fbcmap.c Phillip Potter
2021-04-01 9:55 ` Geert Uytterhoeven
2021-04-02 8:57 ` Phillip Potter [this message]
2021-04-02 15:37 ` Greg KH
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