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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-13 22:52:16 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-13 22:58:54 +0200 |
| commit | d1c95d2ce39560e251fdb14f4af91b04fd7b845c (patch) | |
| tree | 20571824c92d39433d84bdef2b5127584d874da8 /libavcodec/dfa.c | |
| parent | 367d9b2957fa455b59f131fd6bee896cb7ed6600 (diff) | |
dfa: fix out of array write in decode_wdlt()
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/dfa.c')
| -rw-r--r-- | libavcodec/dfa.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/dfa.c b/libavcodec/dfa.c index d8516b2f50..13637d6a05 100644 --- a/libavcodec/dfa.c +++ b/libavcodec/dfa.c @@ -242,6 +242,8 @@ static int decode_wdlt(GetByteContext *gb, uint8_t *frame, int width, int height frame += delta; segments = bytestream2_get_le16(gb); } + if (frame_end <= frame) + return -1; if (segments & 0x8000) { frame[width - 1] = segments & 0xFF; segments = bytestream2_get_le16(gb); |