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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-14 22:15:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-03-03 16:54:20 +0100 |
| commit | 6c5121379ac5a98688d3f62fb4820c749fb13687 (patch) | |
| tree | 54400148f22d5ef4d024742caf2ace3e7e4e1882 | |
| parent | 5d7f17e885ef3a7aae2035bed54604938d83e98d (diff) | |
| download | ffmpeg-6c5121379ac5a98688d3f62fb4820c749fb13687.tar.gz | |
avformat/mccdec: Use av_sat_add64() for fs
Fixes: signed integer overflow: -9223372036854775808 + -242 cannot be represented in type 'long'
Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_MCC_fuzzer-6723018395090944
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/mccdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mccdec.c b/libavformat/mccdec.c index 874ff45cdf..2a0b7905a0 100644 --- a/libavformat/mccdec.c +++ b/libavformat/mccdec.c @@ -142,7 +142,7 @@ static int mcc_read_header(AVFormatContext *s) if (av_sscanf(line, "%d:%d:%d:%d", &hh, &mm, &ss, &fs) != 4) continue; - ts = av_rescale(hh * 3600LL + mm * 60LL + ss, rate.num, rate.den) + fs; + ts = av_sat_add64(av_rescale(hh * 3600LL + mm * 60LL + ss, rate.num, rate.den), fs); lline = (char *)&line; lline += 12; |