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avformat/vividas: Add EOF check in val_1 loop in track_header()

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Fixes: Timeout (148sec -> 0.1sec)
Fixes: 18427/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5682124627116032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-10-29 22:17:45 +01:00
parent 19b8db2908
commit faea5b4462
1 changed files with 2 additions and 0 deletions
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2
libavformat/vividas.c
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@ -295,6 +295,8 @@ static int track_header(VividasDemuxContext *viv, AVFormatContext *s, uint8_t *
for (i=0;i<val_1;i++) {
int c = avio_r8(pb);
for (j=0;j<c;j++) {
if (avio_feof(pb))
return AVERROR_EOF;
avio_r8(pb); // val_3
avio_r8(pb); // val_4
}