qemu-devel
[Top][All Lists]
Advanced
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] Re: [PATCH] console: Avoid dereferencing NULL active_consol

From: Gerd Hoffmann
Subject: [Qemu-devel] Re: [PATCH] console: Avoid dereferencing NULL active_console
Date: Wed, 29 Sep 2010 10:44:37 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3 
On 09/20/10 15:11, Stefan Hajnoczi wrote:

The console_select() function does not check that active_console is
non-NULL before dereferencing it.  When invoked with qemu -nodefaults it
is possible to hit this case.

This patch checks that active_console is non-NULL before stashing away
the old console dimensions in console_select().


Looks sane to me, simliar tests exist in other places.

Acked-by: Gerd Hoffmann <address@hidden>

cheers,
  Gerd
reply via email to
[Prev in Thread] Current Thread [Next in Thread]