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From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Date: Wed, 2 Apr 2025 02:03:58 +0200
Message-ID: <20250402000358.483296-1-michael@niedermayer.cc>
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Subject: [FFmpeg-devel] [PATCH] tests/checkasm/checkasm.c: Assert that
aligned_w/h do not overflow
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
tests/checkasm/checkasm.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index a5b862fe52e..1cfc4feb488 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -58,6 +58,7 @@
#include <stdlib.h>
#include <string.h>
#include "checkasm.h"
+#include "libavutil/avassert.h"
#include "libavutil/common.h"
#include "libavutil/cpu.h"
#include "libavutil/intfloat.h"
@@ -1189,10 +1190,12 @@ int checkasm_check_##type(const char *file, int line, \
int align_w, int align_h, \
int padding) \
{ \
- int aligned_w = (w + align_w - 1) & ~(align_w - 1); \
- int aligned_h = (h + align_h - 1) & ~(align_h - 1); \
+ int64_t aligned_w = (w - 1LL + align_w) & ~(align_w - 1); \
+ int64_t aligned_h = (h - 1LL + align_h) & ~(align_h - 1); \
int err = 0; \
int y = 0; \
+ av_assert0(aligned_w == (int32_t)aligned_w);\
+ av_assert0(aligned_h == (int32_t)aligned_h);\
stride1 /= sizeof(*buf1); \
stride2 /= sizeof(*buf2); \
for (y = 0; y < h; y++) \
--
2.49.0
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