checkasm/sw_scale: Fix stack-buffer-overflow

A buffer whose size is not a multiple of four has been initialized using
consecutive writes of 32bits. This results in a stack-buffer-overflow
reported by ASAN in the checkasm-sw_scale FATE-test.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

diff --git a/tests/checkasm/sw_scale.c b/tests/checkasm/sw_scale.c
index 2680e47897de0ed890f0224c05bb3fe5306f37a0..9efa2b4defca4db1597b896c185a7bcd7ff4e2d6 100644 (file)
--- a/tests/checkasm/sw_scale.c
+++ b/tests/checkasm/sw_scale.c
@@ -53,7 +53,7 @@ static void check_hscale(void)
     struct SwsContext *ctx;
 
     // padded
-    LOCAL_ALIGNED_32(uint8_t, src, [SRC_PIXELS + MAX_FILTER_WIDTH - 1]);
+    LOCAL_ALIGNED_32(uint8_t, src, [FFALIGN(SRC_PIXELS + MAX_FILTER_WIDTH - 1, 4)]);
     LOCAL_ALIGNED_32(uint32_t, dst0, [SRC_PIXELS]);
     LOCAL_ALIGNED_32(uint32_t, dst1, [SRC_PIXELS]);