Fixes: signed integer overflow: -2147481503 + -32732 cannot be represented in type 'int' Fixes: 17782/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SMACKAUD_fuzzer-5769672225456128
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/smacker.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c index a2950c455b..3dd0e929d8 100644 --- a/libavcodec/smacker.c +++ b/libavcodec/smacker.c @@ -742,7 +742,7 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data, return AVERROR_INVALIDDATA; } val |= h[3].values[res] << 8; - pred[1] += sign_extend(val, 16); + pred[1] += (unsigned)sign_extend(val, 16); *samples++ = pred[1]; } else { if(vlc[0].table) @@ -763,7 +763,7 @@ static int smka_decode_frame(AVCodecContext *avctx, void *data, return AVERROR_INVALIDDATA; } val |= h[1].values[res] << 8; - pred[0] += sign_extend(val, 16); + pred[0] += (unsigned)sign_extend(val, 16); *samples++ = pred[0]; } } -- 2.23.0 _______________________________________________ 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".
