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| author | Guomin Jiang <guomin.jiang@intel.com> | 2020-07-02 13:03:34 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-07-28 01:43:16 +0000 |
| commit | d7c9de51d249ee101b4d90357a4272b36c831047 (patch) | |
| tree | 7700f3064245288db8c494b86d445117e7102abf /UefiCpuPkg/CpuMpPei/CpuMpPei.inf | |
| parent | 012809cdca4b876e675cbd181fee213133858a5e (diff) | |
| download | edk2-d7c9de51d249ee101b4d90357a4272b36c831047.tar.gz edk2-d7c9de51d249ee101b4d90357a4272b36c831047.tar.bz2 edk2-d7c9de51d249ee101b4d90357a4272b36c831047.zip | |
UefiCpuPkg/CpuMpPei: Enable paging and set NP flag to avoid TOCTOU (CVE-2019-11098)
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1614
To avoid the TOCTOU, enable paging and set Not Present flag so when
access any code in the flash range, it will trigger #PF exception.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Guomin Jiang <guomin.jiang@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'UefiCpuPkg/CpuMpPei/CpuMpPei.inf')
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.inf | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf index f4d11b861f..7e511325d8 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf @@ -46,6 +46,9 @@ BaseMemoryLib
CpuLib
+[Guids]
+ gEdkiiMigratedFvInfoGuid ## SOMETIMES_CONSUMES ## HOB
+
[Ppis]
gEfiPeiMpServicesPpiGuid ## PRODUCES
gEfiSecPlatformInformationPpiGuid ## SOMETIMES_CONSUMES
|