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Code Issues Releases Activity

avcodec/jpeg2000dec: zero Jpeg2000QuantStyle structure before use in get_qcd()

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Fixes: msan_uninit-mem_7f50b84aac30_6823_mjp2.mov
Fixes use of uninitialized memory
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-12-28 21:47:27 +01:00
parent 833501657b
commit 55fa898969
1 changed files with 2 additions and 0 deletions
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2
libavcodec/jpeg2000dec.c
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@@ -540,6 +540,8 @@ static int get_qcd(Jpeg2000DecoderContext *s, int n, Jpeg2000QuantStyle *q,
Jpeg2000QuantStyle tmp;
int compno, ret;
memset(&tmp, 0, sizeof(tmp));
if ((ret = get_qcx(s, n, &tmp)) < 0)
return ret;
for (compno = 0; compno < s->ncomponents; compno++)