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lavc/avpacket: Fix undefined behaviour, do not pass a null pointer to memcpy(). 

Fixes ticket #5128.
This commit is contained in:
Carl Eugen Hoyos 2016-09-04 21:11:02 +02:00
parent e7bc9623e5
commit f077ad69c6
1 changed files with 2 additions and 1 deletions
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3
libavcodec/avpacket.c
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@ -581,7 +581,8 @@ int av_packet_ref(AVPacket *dst, const AVPacket *src)
ret = packet_alloc(&dst->buf, src->size);
if (ret < 0)
goto fail;
memcpy(dst->buf->data, src->data, src->size);
if (src->size)
memcpy(dst->buf->data, src->data, src->size);
dst->data = dst->buf->data;
} else {