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swscale/swscale_unscaled: don't add offsets to NULL pointers
authorJames Almer <jamrial@gmail.com>
Sun, 13 Jul 2025 22:50:57 +0000 (19:50 -0300)
committerMichael Niedermayer <michael@niedermayer.cc>
Mon, 4 Aug 2025 14:36:12 +0000 (16:36 +0200)
Fixes: libswscale/swscale_unscaled.c:916:20: runtime error: applying zero offset to null pointer
Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit af9b43455a972841154b194057a79ee8b606e727)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libswscale/swscale_unscaled.c patch | blob | history

diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c
index 9af2e7ecc30d573bdd939b9b1f317a9bd74cf52b..e499da0c5915913b0176262a9ce76810b89cb3c0 100644 (file)
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@@ -728,7 +728,7 @@ static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
         return srcSliceH;
     }
 
-    for(i=0; i<4; i++) {
+    for (i = 0; i < 4 && dst[i]; i++) {
         dst2013[i] += stride2013[i] * srcSliceY / 2;
         dst1023[i] += stride1023[i] * srcSliceY / 2;
     }
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