dfa: Fix out of array write in decode_dds1()

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-13 22:57:23 +02:00 · 2012-04-13 22:57:23 +02:00 · 72b9537d88
commit 72b9537d88
parent d1c95d2ce3
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/dfa.c
+++ b/libavcodec/dfa.c
@ -149,7 +149,7 @@ static int decode_dds1(GetByteContext *gb, uint8_t *frame, int width, int height
            bitbuf = bytestream2_get_le16u(gb);
            mask = 1;
        }
-        if (frame_end - frame < 2)
+        if (frame_end - frame < width + 2)
            return -1;
        if (bitbuf & mask) {
            v = bytestream2_get_le16(gb);