On Tue, Sep 19, 2023 at 11:26 PM Nuo Mi <nuomi2...@gmail.com> wrote:
> from the specification: > For each OLS, there shall be at least one layer that is an output layer. > In other words, for any value of i in the range of 0 > to TotalNumOlss − 1, inclusive, the value of NumOutputLayersInOls[ i ] > shall be greater than or equal to 1 > > Fixes: index 257 out of bounds for type 'uint8_t [257]' > Fixes: > 61160/clusterfuzz-testcase-minimized-ffmpeg_BSF_VVC_METADATA_fuzzer-6709397181825024 > replaces https://patchwork.ffmpeg.org/project/ffmpeg/patch/20230905020358.32527-2-mich...@niedermayer.cc/ > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by > <https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by>: > Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/cbs_h266_syntax_template.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/libavcodec/cbs_h266_syntax_template.c > b/libavcodec/cbs_h266_syntax_template.c > index f0d428a478..2077aa63bf 100644 > --- a/libavcodec/cbs_h266_syntax_template.c > +++ b/libavcodec/cbs_h266_syntax_template.c > @@ -891,6 +891,8 @@ static int FUNC(vps) (CodedBitstreamContext *ctx, > RWContext *rw, > } > } > } > + if (!num_output_layers_in_ols[i]) > + return AVERROR_INVALIDDATA; > } > for (i = 1; i < total_num_olss; i++) { > int num_layers_in_ols = 0; > -- > 2.25.1 > > _______________________________________________ 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".
