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