Fixes: Use of uninitialized memory Fixes: 377642312/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-4554550985424896
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/iamf_reader.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/iamf_reader.c b/libavformat/iamf_reader.c index 9f3469b64fc..d331e1315e3 100644 --- a/libavformat/iamf_reader.c +++ b/libavformat/iamf_reader.c @@ -282,7 +282,7 @@ int ff_iamf_read_packet(AVFormatContext *s, IAMFDemuxContext *c, int read = 0; while (1) { - uint8_t header[MAX_IAMF_OBU_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; + uint8_t header[MAX_IAMF_OBU_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE] = {0}; enum IAMF_OBU_Type type; unsigned obu_size; unsigned skip_samples, discard_padding; @@ -294,6 +294,8 @@ int ff_iamf_read_packet(AVFormatContext *s, IAMFDemuxContext *c, size = avio_read(pb, header, FFMIN(MAX_IAMF_OBU_HEADER_SIZE, max_size)); if (size < 0) return size; + if (size != FFMIN(MAX_IAMF_OBU_HEADER_SIZE, max_size)) + return AVERROR_INVALIDDATA; len = ff_iamf_parse_obu_header(header, size, &obu_size, &start_pos, &type, &skip_samples, &discard_padding); -- 2.47.0 _______________________________________________ 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".
