Re: [edk2] [PATCH v3 2/6] MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD

2018-10-24 Thread Wang, Jian J
TCH v3 2/6] MdeModulePkg: introduce UEFI freed- > memory guard bit in HeapGuard PCD > > On 2018/10/24 13:26, Jian J Wang wrote: > >> v3 changes: > >> a. split from v2 #1 patch file. > >> b. refine the commit message and title. > > > > UAF (Use-After-Free) m

Re: [edk2] [PATCH v3 2/6] MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD

2018-10-24 Thread Zeng, Star
On 2018/10/24 13:26, Jian J Wang wrote: v3 changes: a. split from v2 #1 patch file. b. refine the commit message and title. UAF (Use-After-Free) memory issue is kind of illegal access to memory which has been freed. It can be detected by a new freed-memory guard enforced onto freed memory. BIT

[edk2] [PATCH v3 2/6] MdeModulePkg: introduce UEFI freed-memory guard bit in HeapGuard PCD

2018-10-23 Thread Jian J Wang
> v3 changes: > a. split from v2 #1 patch file. > b. refine the commit message and title. UAF (Use-After-Free) memory issue is kind of illegal access to memory which has been freed. It can be detected by a new freed-memory guard enforced onto freed memory. BIT4 of following PCD is used to enable