Blame SOURCES/0001-patch-8.2.3669-buffer-overflow-with-long-help-argume.patch

b6500d
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
b6500d
index 1827fec..e69fbd3 100644
b6500d
--- a/src/ex_cmds.c
b6500d
+++ b/src/ex_cmds.c
b6500d
@@ -6537,8 +6537,7 @@ find_help_tags(
b6500d
 		    || (vim_strchr((char_u *)"%_z@", arg[1]) != NULL
b6500d
 							   && arg[2] != NUL)))
b6500d
 	{
b6500d
-	    STRCPY(d, "/\\\\");
b6500d
-	    STRCPY(d + 3, arg + 1);
b6500d
+	    vim_snprintf((char *)d, IOSIZE, "/\\\\%s", arg + 1);
b6500d
 	    /* Check for "/\\_$", should be "/\\_\$" */
b6500d
 	    if (d[3] == '_' && d[4] == '$')
b6500d
 		STRCPY(d + 4, "\\$");