openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-30 06:30:59 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

avformat/oggparseogm: Check available data before reading global header

Browse Source 
Fixes use of uninitialized data

Found-by: Thomas Guilbert <tguilbert@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-04-11 15:06:21 +02:00
parent cd8e62746f
commit 170d864d2c
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/oggparseogm.c
View File

@ -108,6 +108,8 @@ ogm_header(AVFormatContext *s, int idx)
if (size > 52) {
av_assert0(AV_INPUT_BUFFER_PADDING_SIZE <= 52);
size -= 52;
if (bytestream2_get_bytes_left(&p) < size)
return AVERROR_INVALIDDATA;
ff_alloc_extradata(st->codecpar, size);
bytestream2_get_buffer(&p, st->codecpar->extradata, st->codecpar->extradata_size);
}