Fixes: signed integer overflow: -1094994793 * 2 cannot be represented in type 'int' Fixes: 16139/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5663911036059648
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/apedec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 70939abeb4..5d82ff53ff 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -828,7 +828,7 @@ static av_always_inline int filter_fast_3320(APEPredictor *p, return decoded; } - predictionA = p->buf[delayA] * 2 - p->buf[delayA - 1]; + predictionA = p->buf[delayA] * 2U - p->buf[delayA - 1]; p->lastA[filter] = decoded + ((int32_t)(predictionA * p->coeffsA[filter][0]) >> 9); if ((decoded ^ predictionA) > 0) -- 2.22.1 _______________________________________________ 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".
