Fixes: 4868/clusterfuzz-testcase-minimized-6236542906400768 Fixes: runtime error: shift exponent 126 is too large for 32-bit type 'int'
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/hevc_ps.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c index 4787312cfa..746c96b17e 100644 --- a/libavcodec/hevc_ps.c +++ b/libavcodec/hevc_ps.c @@ -1324,6 +1324,17 @@ static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx, pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb); pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb); + if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0) + || pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0) + ) { + av_log(avctx, AV_LOG_ERROR, + "log2 sao offset scales (%d %d) are invalid\n", + pps->log2_sao_offset_scale_luma, + pps->log2_sao_offset_scale_chroma + ); + return AVERROR_INVALIDDATA; + } + return(0); } -- 2.15.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
