@@ -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;
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 <michael@niedermayer.cc> --- libavcodec/hevcdec.c | 5 +++++ 1 file changed, 5 insertions(+)