Fixes: out of array access Fixes: 27424/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5682070692823040
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/vividas.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavformat/vividas.c b/libavformat/vividas.c index 46c66bf9a0..4adc125439 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -389,8 +389,8 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t * ffio_read_varlen(pb); // len_3 num_data = avio_r8(pb); for (j = 0; j < num_data; j++) { - uint64_t len = ffio_read_varlen(pb); - if (len > INT_MAX/2 - xd_size) { + int64_t len = ffio_read_varlen(pb); + if (len < 0 || len > INT_MAX/2 - xd_size) { return AVERROR_INVALIDDATA; } data_len[j] = len; -- 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".
