avcodec/h264dec: Fix potential array overread
authorMichael Niedermayer <michael@niedermayer.cc>
Sat, 21 Oct 2017 16:04:44 +0000 (18:04 +0200)
committerMichael Niedermayer <michael@niedermayer.cc>
Thu, 7 Dec 2017 22:38:06 +0000 (23:38 +0100)
add padding before scantable arrays

See: 522d850e68ec4b77d3477b3c8f55b1ba00a9d69a

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 380b48fb9fdc7b0c40d67e026f9b3accb12794eb)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/h264dec.h

index 2106ba0..de8b7c3 100644 (file)
@@ -416,6 +416,7 @@ typedef struct H264Context {
     uint8_t (*mvd_table[2])[2];
     uint8_t *direct_table;
 
+    uint8_t scan_padding[16];
     uint8_t zigzag_scan[16];
     uint8_t zigzag_scan8x8[64];
     uint8_t zigzag_scan8x8_cavlc[64];