JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
Ada


ADA.ALLOC.DF : Double Free (Ada)

This warning class corresponds to a GNAT SAS message. The CodeSonar analysis results may include warnings of this class if your CodeSonar project includes Ada components.

Summary

Two attempts to free the same dynamic object.

This warning class corresponds to the GNAT SAS Double_free.

Properties

Class Name Double Free (Ada)
Significance security
Mnemonic ADA.ALLOC.DF
Categories
CWE CWE:415 Double Free
  CWE:763 Release of Invalid Pointer or Reference
Availability Available for Ada only.
Enabling Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file.
WARNING_FILTER += discard class="Double Free (Ada)"

Example

with Ada.Unchecked_Deallocation;

procedure Test is
   type Int_Access is access all Integer;
   procedure Free is new Ada.Unchecked_Deallocation (Integer, Int_Access);

   X : Int_Access := new Integer;
   Y : Int_Access := X;
begin
   Free (X);
   Free (Y);                -- warning issued here
end;

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

To report problems with this documentation, please visit https://support.codesecure.com/.