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avformat/nistspheredec: initialize header_size to -1

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Fixes use of uninitialized memory
This also avoids the need to check the scanf() return as the subsequent check catches it
Fixes: msan_uninit-mem_7f712e4dc173_7414_nist_ulaw.nist
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-20 18:07:30 +01:00
parent 34fe125f4b
commit 632fdec9f4
1 changed files with 1 additions and 1 deletions
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libavformat/nistspheredec.c
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@ -36,7 +36,7 @@ static int nist_read_header(AVFormatContext *s)
{
char buffer[32], coding[32] = "pcm", format[32] = "01";
int bps = 0, be = 0;
int32_t header_size;
int32_t header_size = -1;
AVStream *st;
st = avformat_new_stream(s, NULL);