Fixes: Null pointer dereference Fixes: 67861/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5352628142800896
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mov.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index ecd29a7d08b..97a24e6737e 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -9289,6 +9289,9 @@ static int read_image_grid(AVFormatContext *s, const HEIFGrid *grid, if (tile_grid->nb_tiles != size) return AVERROR_INVALIDDATA; + for (int i = 0; i < size; i++) + if (!grid->tile_item_list[i]) + return AVERROR_INVALIDDATA; for (int i = 0; i < tile_cols; i++) tile_grid->coded_width += grid->tile_item_list[i]->width; for (int i = 0; i < size; i += tile_cols) -- 2.43.2 _______________________________________________ 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".
