From 61bbc537ab2305392bd170a6f404ed6402bee4a8 Mon Sep 17 00:00:00 2001 From: Pan Bian Date: Mon, 27 Nov 2017 14:56:32 +0800 Subject: [PATCH] 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 --- libavcodec/samidec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/samidec.c b/libavcodec/samidec.c index 2620424750..6a598060ef 100644 --- a/libavcodec/samidec.c +++ b/libavcodec/samidec.c @@ -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);