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| author | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2010-01-24 18:07:29 +0000 |
|---|---|---|
| committer | Reimar Döffinger <Reimar.Doeffinger@gmx.de> | 2010-01-24 18:07:29 +0000 |
| commit | 0b882b4009c9fbe24020c2fe83b21ee43d0784ea (patch) | |
| tree | 54216a1ebbd06b892147d92a33761d2367c6d50d | |
| parent | 8ba436171f6afb4b5c4882104c8a9d26f18727e7 (diff) | |
| download | ffmpeg-0b882b4009c9fbe24020c2fe83b21ee43d0784ea.tar.gz | |
Fix crash in MLP decoder due to integer overflow.
Probably only DoS, init_get_bits sets buffer to NULL, thus causing a
NULL-dereference directly after.
Originally committed as revision 21426 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/mlpdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mlpdec.c b/libavcodec/mlpdec.c index 8060ebe197..bfde83c09f 100644 --- a/libavcodec/mlpdec.c +++ b/libavcodec/mlpdec.c @@ -959,7 +959,7 @@ static int read_access_unit(AVCodecContext *avctx, void* data, int *data_size, length = (AV_RB16(buf) & 0xfff) * 2; - if (length > buf_size) + if (length < 4 || length > buf_size) return -1; init_get_bits(&gb, (buf + 4), (length - 4) * 8); |