[FFmpeg-devel] [PATCH 4/4] avcodec/dvdsub_parser: Allocate input padding

Michael Niedermayer michael at niedermayer.cc
Sun Jul 15 20:46:05 EEST 2018


On Fri, Jul 13, 2018 at 07:26:40PM +0200, Michael Niedermayer wrote:
> Fixes: out of array read
> Fixes: 9350/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DVDSUB_fuzzer-5746777750765568
> 
> 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/dvdsub_parser.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

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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