From 004564c930ef60d2f9e8798e820ed7b2a37ba0bd Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 10 May 2015 19:54:41 +0200 Subject: [PATCH] avformat/wavenc: Check umid length Fixes potential out of array read Signed-off-by: Michael Niedermayer --- libavformat/wavenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/wavenc.c b/libavformat/wavenc.c index baadd9149b..74b5d56f84 100644 --- a/libavformat/wavenc.c +++ b/libavformat/wavenc.c @@ -120,7 +120,7 @@ static void bwf_write_bext_chunk(AVFormatContext *s) avio_wl64(s->pb, time_reference); avio_wl16(s->pb, 1); // set version to 1 - if (tmp_tag = av_dict_get(s->metadata, "umid", NULL, 0)) { + if ((tmp_tag = av_dict_get(s->metadata, "umid", NULL, 0)) && strlen(tmp_tag->value) > 2) { unsigned char umidpart_str[17] = {0}; int64_t i; uint64_t umidpart;