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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-12-21 12:52:23 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-12-22 01:48:33 +0100 |
| commit | 9b195dd5793edb88a72d53cb080c2216e91a5849 (patch) | |
| tree | 3d330c0f10fad25ed406ab0822e4fb56bc9733c8 /libavformat/4xm.c | |
| parent | 2c635fabbf7ec8ed4f30d9b3c04d5c24cb7a081d (diff) | |
| download | ffmpeg-9b195dd5793edb88a72d53cb080c2216e91a5849.tar.gz | |
avformat/4xm: shrink packet if it was only partially initialized
Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f6c76ab7950_4920_dracula.4xm
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/4xm.c')
| -rw-r--r-- | libavformat/4xm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/4xm.c b/libavformat/4xm.c index 6e63c67399..23279c42fb 100644 --- a/libavformat/4xm.c +++ b/libavformat/4xm.c @@ -319,8 +319,10 @@ static int fourxm_read_packet(AVFormatContext *s, if (ret < 0) { av_free_packet(pkt); - } else + } else { packet_read = 1; + av_shrink_packet(pkt, ret + 8); + } break; case snd__TAG: |