[FFmpeg-devel] [PATCH 2/2] avcodec/rscc: Check inflated_buf size whan it is used

Michael Niedermayer michael at niedermayer.cc
Thu Feb 4 18:24:57 EET 2021


On Sun, Nov 22, 2020 at 04:37:33PM +0100, Michael Niedermayer wrote:
> Fixes: out of array access
> Fixes: 27434/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RSCC_fuzzer-5196757675540480
> 
> Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
> ---
>  libavcodec/rscc.c | 4 ++++
>  1 file changed, 4 insertions(+)

will apply

[...]
-- 
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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