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avcodec/samidec: check av_strdup() return value 

In function sami_paragraph_to_ass(), the return value of av_strdup() is
not checked. To avoid potential NULL dereference, the return value
should be checked against NULL.

Signed-off-by: Pan Bian <bianpan2016@163.com>
This commit is contained in:
Pan Bian 2017-11-27 14:56:32 +08:00 committed by Clément Bœsch
parent a198c1386a
commit 61bbc537ab
1 changed files with 3 additions and 0 deletions
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3
libavcodec/samidec.c
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@ -48,6 +48,9 @@ static int sami_paragraph_to_ass(AVCodecContext *avctx, const char *src)
AVBPrint *dst_content = &sami->encoded_content;
AVBPrint *dst_source = &sami->encoded_source;
if (!dupsrc)
return AVERROR(ENOMEM);
av_bprint_clear(&sami->encoded_content);
av_bprint_clear(&sami->content);
av_bprint_clear(&sami->encoded_source);