[FFmpeg-devel] [PATCH] avfilter/all: handle ff_formats_unref correctly

Michael Niedermayer michaelni at gmx.at
Fri Nov 20 21:00:57 CET 2015


On Sun, Nov 15, 2015 at 07:21:11PM -0500, Ganesh Ajjanagadde wrote:
> Recent commits 6aaac24d72a7da631173209841a3944fcb4a3309 and
> 3835554bf8ed78539a3492c239f979c0ab03a15f made progress towards cleaning
> up usage of the formats API, and in particular fixed possible NULL pointer
> dereferences.
> 
> This commit addresses the issue of possible resource leaks when one call
> fails and the others don't.
> 
> Fixes: CID 1338330, 1338329, 1338327, 1338326.
> 
> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
> ---
>  libavfilter/af_channelmap.c |  7 +++++--
>  libavfilter/vf_alphamerge.c |  7 +++++--
>  libavfilter/vf_overlay.c    | 30 +++++++++++++++++++++---------
>  3 files changed, 31 insertions(+), 13 deletions(-)

if the error pathes have been tested with valgrind or assan (and
simulating/forcing them to trigger) then this should be ok

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Many that live deserve death. And some that die deserve life. Can you give
it to them? Then do not be too eager to deal out death in judgement. For
even the very wise cannot see all ends. -- Gandalf
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