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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-08 09:28:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-13 00:43:09 +0200 |
| commit | 0e15b01b4e463d12128db2c15de7741637548347 (patch) | |
| tree | 16610958d5a57efcfd7e30a48987fc7872755be7 /libavformat/thp.c | |
| parent | 9a42a67c5ca198a3879b7f3663cc44ccbcaf0bd3 (diff) | |
avformat/thp: Check fps
Fixes: division by zero
Fixes: 23162/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4856420817436672
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/thp.c')
| -rw-r--r-- | libavformat/thp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/thp.c b/libavformat/thp.c index 4abff1313a..bcc3febaa1 100644 --- a/libavformat/thp.c +++ b/libavformat/thp.c @@ -75,6 +75,8 @@ static int thp_read_header(AVFormatContext *s) avio_rb32(pb); /* Max samples. */ thp->fps = av_d2q(av_int2float(avio_rb32(pb)), INT_MAX); + if (thp->fps.den <= 0 || thp->fps.num < 0) + return AVERROR_INVALIDDATA; thp->framecnt = avio_rb32(pb); thp->first_framesz = avio_rb32(pb); pb->maxsize = avio_rb32(pb); |