From 9ad320c1ad1a25558998ddfe47674511567fec57 Mon Sep 17 00:00:00 2001 From: Sebastian Rasmussen Date: Mon, 12 Feb 2024 14:46:22 +0800 Subject: [PATCH] Plug memory leak that happens upon error. If fgStructure.CurrentMenu is set when glutAddMenuEntry() or glutAddSubMenu() is called the allocated menuEntry variable will leak. This commit postpones allocating menuEntry until after the error checks, thereby plugging the memory leak. This fixes CVE-2024-24258 and CVE-2024-24259. --- src/fg_menu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/fg_menu.c b/src/fg_menu.c index 53112dc2..0da88901 100644 --- a/src/fg_menu.c +++ b/src/fg_menu.c @@ -864,12 +864,12 @@ void FGAPIENTRY glutAddMenuEntry( const char* label, int value ) { SFG_MenuEntry* menuEntry; FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutAddMenuEntry" ); - menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 ); freeglut_return_if_fail( fgStructure.CurrentMenu ); if (fgState.ActiveMenus) fgError("Menu manipulation not allowed while menus in use."); + menuEntry = (SFG_MenuEntry *)calloc( sizeof(SFG_MenuEntry), 1 ); menuEntry->Text = strdup( label ); menuEntry->ID = value; @@ -888,7 +888,6 @@ void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID ) SFG_Menu *subMenu; FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutAddSubMenu" ); - menuEntry = ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 ); subMenu = fgMenuByID( subMenuID ); freeglut_return_if_fail( fgStructure.CurrentMenu ); @@ -897,6 +896,7 @@ void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID ) freeglut_return_if_fail( subMenu ); + menuEntry = ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 ); menuEntry->Text = strdup( label ); menuEntry->SubMenu = subMenu; menuEntry->ID = -1; -- 2.43.0