linux-kernel - [PATCH] video/logo: prevent use of logos after they have been freed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 18 Dec 2014 13:57:21 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Sam Ravnborg <sam@...nborg.org>,
	<linux-kernel@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
CC:	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: [PATCH] video/logo: prevent use of logos after they have been freed

Hi,

The fbdev logo seems to be rather messed up when deferred probing is happening.
This is a quick fix for the problem.

The code in the logo.c is quite scary, using __init_refok to silence warnings
about accessing __initdata from non-init context.

Another option would be to make the logos not __initdata, but I think that's
not acceptable.

Any ideas for a nicer way to fix this issue?

 Tomi

Tomi Valkeinen (1):
  video/logo: prevent use of logos after they have been freed

 drivers/video/logo/logo.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

-- 
2.2.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/