Fixes: out of array access Fixes: 25452/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOBICLIP_fuzzer-5081657055641600
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/mobiclip.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/mobiclip.c b/libavcodec/mobiclip.c index 13f0edc89d..3ede370bef 100644 --- a/libavcodec/mobiclip.c +++ b/libavcodec/mobiclip.c @@ -914,6 +914,9 @@ static int predict_intra(AVCodecContext *avctx, AVFrame *frame, int ax, int ay, int shift = adjust(size, size) == 8 ? 3 : 2; uint8_t *block; + if (ax == 0 && ay == 0) + return -1; + for (int x = 0; x < size; x++) { int val = top[x]; arr1[x] = adjust(((bottommost - val) * (1 << shift)) + r6 * (x + 1), size); -- 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".
