Fixes: out of array read Fixes: 19300/clusterfuzz-testcase-minimized-ffmpeg_BSF_VP9_METADATA_fuzzer-5653911730126848
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/cbs_vp9.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/cbs_vp9.c b/libavcodec/cbs_vp9.c index 42e4dcf5ac..98730e03e3 100644 --- a/libavcodec/cbs_vp9.c +++ b/libavcodec/cbs_vp9.c @@ -428,6 +428,9 @@ static int cbs_vp9_split_fragment(CodedBitstreamContext *ctx, index_size = 2 + (((superframe_header & 0x18) >> 3) + 1) * ((superframe_header & 0x07) + 1); + if (index_size > frag->data_size) + return AVERROR_INVALIDDATA; + err = init_get_bits(&gbc, frag->data + frag->data_size - index_size, 8 * index_size); if (err < 0) -- 2.24.0 _______________________________________________ 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".
