mirrors/librempeg
1
0
Fork 0
mirror of https://github.com/librempeg/librempeg synced 2024-11-22 18:49:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

avformat/oggparsetheora: zero extradata padding area

Browse Source 
Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f66fa0ac09d_9197_theora_a4_v6_k250_s0.ogg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-12-15 19:21:02 +01:00
parent e838c9852e
commit 4511531582
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavformat/oggparsetheora.c
View File

@ -131,6 +131,8 @@ static int theora_header(AVFormatContext *s, int idx)
st->codec->extradata_size = 0;
return err;
}
memset(st->codec->extradata + cds, 0, FF_INPUT_BUFFER_PADDING_SIZE);
cdp = st->codec->extradata + st->codec->extradata_size;
*cdp++ = os->psize >> 8;
*cdp++ = os->psize & 0xff;