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From: Hao Wu <hao.a.wu@intel.com>
To: edk2-devel@lists.01.org
Cc: Hao Wu <hao.a.wu@intel.com>, Jian J Wang <jian.j.wang@intel.com>,
	Star Zeng <star.zeng@intel.com>, Eric Dong <eric.dong@intel.com>,
	Jiewen Yao <jiewen.yao@intel.com>, Ruiyu Ni <ruiyu.ni@intel.com>
Subject: [PATCH 0/2] Resolve feature conflict between NX and Stack guard
Date: Tue,  6 Mar 2018 20:11:20 +0800	[thread overview]
Message-ID: <20180306121122.4704-1-hao.a.wu@intel.com> (raw)

If enabled, NX memory protection feature will mark some types of active
memory as NX (non-executable), which includes the first page of the stack.
This will overwrite the attributes of the first page of the stack if the
stack guard feature is also enabled.

The series will override the attributes setting to the first page of the
stack by adding back the 'EFI_MEMORY_RP' attribute when the stack guard
feature is enabled.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>

Hao Wu (2):
  MdeModulePkg/Core: Refine handling NULL detection in NX setting
  MdeModulePkg/Core: Fix feature conflict between NX and Stack guard

 MdeModulePkg/Core/Dxe/DxeMain.inf             |  4 +-
 MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c | 81 +++++++++++++++++++++++----
 2 files changed, 74 insertions(+), 11 deletions(-)

-- 
2.12.0.windows.1



             reply	other threads:[~2018-03-06 12:05 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-06 12:11 Hao Wu [this message]
2018-03-06 12:11 ` [PATCH 1/2] MdeModulePkg/Core: Refine handling NULL detection in NX setting Hao Wu
2018-03-06 13:05   ` Yao, Jiewen
2018-03-06 12:11 ` [PATCH 2/2] MdeModulePkg/Core: Fix feature conflict between NX and Stack guard Hao Wu
2018-03-06 12:16   ` Zeng, Star
2018-03-06 13:04     ` Yao, Jiewen
2018-03-06 13:10       ` Yao, Jiewen
2018-03-06 13:11         ` Wu, Hao A

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