[FFmpeg-devel] [PATCH 1/2] avcodec/g2meet: Replace fake allocation avoidance for framebuf

[Michael Niedermayer]

On Wed, Jan 25, 2023 at 12:42:53AM +0100, Michael Niedermayer wrote:
> framebuf is only allocated when the new width/height are larger than the old
> but nothing sets the old so its always allocated.
> Use av_fast_mallocz() instead.
> 
> Fixes: Timeout
> Fixes: 55094/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_G2M_fuzzer-5116909932904448
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/g2meet.c | 19 ++++++++++---------
>  1 file changed, 10 insertions(+), 9 deletions(-)

will apply patchset

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

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.
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