Fixes: division by zero Fixes: 60306/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5538913553612800
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-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 dce0216fbc..18ecf17e3b 100644 --- a/libavcodec/cbs_h266_syntax_template.c +++ b/libavcodec/cbs_h266_syntax_template.c @@ -1187,6 +1187,8 @@ static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw, } else { int num_subpic_cols = tmp_width_val / (current->sps_subpic_width_minus1[0] + 1); + if (!num_subpic_cols) + return AVERROR_INVALIDDATA; infer(sps_subpic_ctu_top_left_x[i], (i % num_subpic_cols) * (current->sps_subpic_width_minus1[0] + 1)); -- 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".
