diff -urN giflib-5.2.1/gif2rgb.c giflib-5.2.1-bak/gif2rgb.c
--- giflib-5.2.1/gif2rgb.c	2024-05-14 16:38:28.259385838 +0800
+++ giflib-5.2.1-bak/gif2rgb.c	2024-05-14 16:40:04.629090800 +0800
@@ -498,6 +498,9 @@
 		   ScreenBuffer, 
 		   GifFile->SWidth, GifFile->SHeight);
 
+    for (i = 0; i < GifFile->SHeight; i++) {
+	    (void)free(ScreenBuffer[i]);
+    }
     (void)free(ScreenBuffer);
 
     if (DGifCloseFile(GifFile, &Error) == GIF_ERROR) {