Re: [FFmpeg-devel] [PATCH 1/2] avcodec/wmalosslessdec: Check remaining space before padding and channel residue
On Mon, Sep 14, 2020 at 12:11:02AM +0200, Michael Niedermayer wrote: > Fixes: Timeout (1101sec -> 0.4sec) > Fixes: > 24491/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5725337036783616 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer > --- > libavcodec/wmalosslessdec.c | 2 ++ > 1 file changed, 2 insertions(+) will apply patchset [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB it is not once nor twice but times without number that the same ideas make their appearance in the world. -- Aristotle signature.asc Description: PGP signature ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-devel] [PATCH 1/2] avcodec/wmalosslessdec: Check remaining space before padding and channel residue
Fixes: Timeout (1101sec -> 0.4sec) Fixes: 24491/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5725337036783616 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/wmalosslessdec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 725e811070..b8d0f6220d 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -932,6 +932,8 @@ static int decode_subframe(WmallDecodeCtx *s) s->do_lpc = 0; } +if (get_bits_left(&s->gb) < 1) +return AVERROR_INVALIDDATA; if (get_bits1(&s->gb)) padding_zeroes = get_bits(&s->gb, 5); -- 2.17.1 ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
