From 577870d5603dca32d878e9908a7ec4d2852b590a Mon Sep 17 00:00:00 2001 From: Hao Wu Date: Mon, 13 Jul 2015 01:23:37 +0000 Subject: IntelFrameworkModulePkg BootMngr: Fix potential read over memory boundary This commit will resolve the issue brought by r17737. HelpString = AllocateCopyPool (HelpSize, L"Device Path : "); The above using of AllocateCopyPool() will read contents out of the scope of the constant string. Potential risk for the constant string allocated at the boundary of memory region. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Hao Wu Reviewed-by: Qiu Shumin Reviewed-by: Jeff Fan git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17932 6f19259b-4bc3-4df7-8a09-765794883524 --- IntelFrameworkModulePkg/Universal/BdsDxe/BootMngr/BootManager.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'IntelFrameworkModulePkg') diff --git a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMngr/BootManager.c b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMngr/BootManager.c index 978959d6e7..6efd783ab2 100644 --- a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMngr/BootManager.c +++ b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMngr/BootManager.c @@ -319,8 +319,9 @@ CallBootManager ( TempStr = DevicePathToStr (Option->DevicePath); HelpSize = StrSize (TempStr) + StrSize (L"Device Path : "); - HelpString = AllocateCopyPool (HelpSize, L"Device Path : "); + HelpString = AllocateZeroPool (HelpSize); ASSERT (HelpString != NULL); + StrCatS (HelpString, HelpSize / sizeof (CHAR16), L"Device Path : "); StrCatS (HelpString, HelpSize / sizeof (CHAR16), TempStr); HelpToken = HiiSetString (HiiHandle, 0, HelpString, NULL); -- cgit v1.2.3