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avformat/au: Check for EOF in au_read_annotation()

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Fixes: Timeout (too looong -> 1 ms)
Fixes: 26366/clusterfuzz-testcase-minimized-ffmpeg_dem_SDX_fuzzer-5655584843759616
Fixes: 26391/clusterfuzz-testcase-minimized-ffmpeg_dem_ALP_fuzzer-5484026133217280

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e680d50eb4feddafb2d8575b21fc5fc8764f4801)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-10-15 22:19:32 +02:00
parent 5aaf7f4646
commit 5be63051e7
1 changed files with 2 additions and 0 deletions
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2
libavformat/au.c
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@ -86,6 +86,8 @@ static int au_read_annotation(AVFormatContext *s, int size)
av_bprint_init(&bprint, 64, AV_BPRINT_SIZE_UNLIMITED);
while (size-- > 0) {
if (avio_feof(pb))
return AVERROR_EOF;
c = avio_r8(pb);
switch(state) {
case PARSE_KEY: