Fixes: SEGV on unknown address 0x000000000000 Fixes: 26482/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-4905102324006912
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 999c4a5d1c..6e93d96aef 100644 --- a/libavformat/vividas.c +++ b/libavformat/vividas.c @@ -682,7 +682,7 @@ static int viv_read_packet(AVFormatContext *s, return AVERROR_INVALIDDATA; ffio_read_varlen(pb); - if (v_size > INT_MAX) + if (v_size > INT_MAX || !v_size) return AVERROR_INVALIDDATA; ret = av_get_packet(pb, pkt, v_size); if (ret < 0) @@ -711,7 +711,7 @@ static int viv_read_packet(AVFormatContext *s, } else { uint64_t v_size = ffio_read_varlen(pb); - if (v_size > INT_MAX) + if (v_size > INT_MAX || !v_size) return AVERROR_INVALIDDATA; ret = av_get_packet(pb, pkt, v_size); if (ret < 0) -- 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".
