Fixes: signed integer overflow: 29 + 2147483640 cannot be represented in type 'int' Fixes: 25413/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5697909331591168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/hevcdec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c index c1de75abe1..7447dce590 100644 --- a/libavcodec/hevcdec.c +++ b/libavcodec/hevcdec.c @@ -801,6 +801,11 @@ static int hls_slice_header(HEVCContext *s) if (s->ps.pps->pic_slice_level_chroma_qp_offsets_present_flag) { sh->slice_cb_qp_offset = get_se_golomb(gb); sh->slice_cr_qp_offset = get_se_golomb(gb); + if (sh->slice_cb_qp_offset < -12 || sh->slice_cb_qp_offset > 12 || + sh->slice_cr_qp_offset < -12 || sh->slice_cr_qp_offset > 12) { + av_log(s->avctx, AV_LOG_ERROR, "Invalid slice cx qp offset.\n"); + return AVERROR_INVALIDDATA; + } } else { sh->slice_cb_qp_offset = 0; sh->slice_cr_qp_offset = 0; -- 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".
