On Thu, Apr 01, 2021 at 11:55:50AM +0200, Geert Uytterhoeven wrote:
On Thu, Apr 1, 2021 at 12:09 AM Phillip Potter [off-list ref] wrote:
quoted
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: <redacted>
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