fraps: check for overread

Fixeds Ticket619 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-08 22:42:50 +01:00 · 2011-11-08 22:42:50 +01:00 · 3bdfef31ac
commit 3bdfef31ac
parent bf0ac7aa69
2 changed files with 2 additions and 1 deletions
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@ -114,6 +114,8 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
            else if(Uoff) dst[i] += 0x80;
        }
        dst += stride;
+        if(get_bits_left(&gb) < 0)
+            return -1;
    }
    free_vlc(&vlc);
    return 0;
--- a/tests/ref/fate/fraps-v5
+++ b/tests/ref/fate/fraps-v5
@ -56,4 +56,3 @@
 0, 165000, 145152, 0x80448031
 0, 168000, 145152, 0xe3b1fbf7
 0, 171000, 145152, 0xa00395a4
-0, 174000, 145152, 0xdf3b4fce