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authorMichael Niedermayer <michael@niedermayer.cc>2022-09-18 16:45:30 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2022-10-21 22:19:37 +0200
commita9fcab5cdc34c86147e5d4e6eaca28a63bf6b826 (patch)
tree51d66787473fe564eeafa64559b175bd84ace257
parentfa4fdc7ffbc3aa2cdf3fef55e054720dc44512e4 (diff)
downloadffmpeg-a9fcab5cdc34c86147e5d4e6eaca28a63bf6b826.tar.gz
avformat/xwma: Use av_rescale() for duration computation
Fixes: signed integer overflow: 34242363648 * 538976288 cannot be represented in type 'long' Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-6577923913547776 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 2c789f753c3657be9041307f9c03749f5ba5a6bb) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavformat/xwma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/xwma.c b/libavformat/xwma.c
index 6e74a338bf..babe9bcd30 100644
--- a/libavformat/xwma.c
+++ b/libavformat/xwma.c
@@ -253,7 +253,7 @@ static int xwma_read_header(AVFormatContext *s)
* the total duration using the average bits per sample and the
* total data length.
*/
- st->duration = (size<<3) * st->codecpar->sample_rate / st->codecpar->bit_rate;
+ st->duration = av_rescale((size<<3), st->codecpar->sample_rate, st->codecpar->bit_rate);
}
fail: