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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-12-28 21:47:27 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-12-28 22:08:49 +0100 |
| commit | 55fa898969d10e2d47bba0613175bf57a86c5a41 (patch) | |
| tree | 9f944295c894463b84cf80375940d1ec5e6476cd /libavcodec | |
| parent | 833501657bed55efb29c731409490dc322bbf2d8 (diff) | |
| download | ffmpeg-55fa898969d10e2d47bba0613175bf57a86c5a41.tar.gz | |
avcodec/jpeg2000dec: zero Jpeg2000QuantStyle structure before use in get_qcd()
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>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/jpeg2000dec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index d3e49a19e6..3195104ad7 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -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++) |