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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-25 20:16:38 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-10-06 14:41:41 +0200 |
| commit | 6b1756ae40fe86d9177e49c3c678039697acbcbe (patch) | |
| tree | b3c951c749f45c49d89e0cdc01b7188764d20d1d | |
| parent | e5308ce13eca7cb5cff63ac9f611e224fdfc5b88 (diff) | |
| download | ffmpeg-6b1756ae40fe86d9177e49c3c678039697acbcbe.tar.gz | |
avformat/qcp: Avoid negative nb_rates
Fixes: signed integer overflow: 2 * -1725947872 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_QCP_fuzzer-6726807632084992
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 1b865cc703d29cb307e1fa628aa02940d54eb42a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/qcp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/qcp.c b/libavformat/qcp.c index 168030dc16..4478875f2d 100644 --- a/libavformat/qcp.c +++ b/libavformat/qcp.c @@ -93,7 +93,8 @@ static int qcp_read_header(AVFormatContext *s) QCPContext *c = s->priv_data; AVStream *st = avformat_new_stream(s, NULL); uint8_t buf[16]; - int i, nb_rates; + int i; + unsigned nb_rates; if (!st) return AVERROR(ENOMEM); |