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| author | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
| commit | 568e18b15e2ddf494fd8926707d34ca08c8edce5 (patch) | |
| tree | 18f59992848e24c529a01bd98aed66af3762b2d1 /libavformat/4xm.c | |
| parent | 934b0821dbb8fb33b2736fe4aab09fc2b6cc8ccc (diff) | |
integer overflows, heap corruption
possible arbitrary code execution cannot be ruled out in some cases
precautionary checks
Originally committed as revision 3813 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/4xm.c')
| -rw-r--r-- | libavformat/4xm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/4xm.c b/libavformat/4xm.c index 462917893e..39e1e87061 100644 --- a/libavformat/4xm.c +++ b/libavformat/4xm.c @@ -185,6 +185,8 @@ static int fourxm_read_header(AVFormatContext *s, current_track = LE_32(&header[i + 8]); if (current_track + 1 > fourxm->track_count) { fourxm->track_count = current_track + 1; + if((unsigned)fourxm->track_count >= UINT_MAX / sizeof(AudioTrack)) + return -1; fourxm->tracks = av_realloc(fourxm->tracks, fourxm->track_count * sizeof(AudioTrack)); if (!fourxm->tracks) { |