Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | [PATCHv3 0/3] Fix couple of issues with LDT remap for PTI | Date | Fri, 26 Oct 2018 15:28:53 +0300 |
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The patchset fixes issues with LDT remap for PTI:
- Layout collision due to KASLR with 5-level paging;
- Information leak via Meltdown-like attack;
Please review and consider applying.
v3: - Split out cleanup in map_ldt_struct() into a separate patch v2: - Rebase to the Linus' tree + fix conflict with new documentation of kernel memory layout + fix few mistakes in layout documentation - Fix typo in commit message
Kirill A. Shutemov (3): x86/mm: Move LDT remap out of KASLR region on 5-level paging x86/ldt: Unmap PTEs for the slot before freeing LDT pages x86/ldt: Remove unused variable in map_ldt_struct()
Documentation/x86/x86_64/mm.txt | 34 +++++++------- arch/x86/include/asm/page_64_types.h | 12 ++--- arch/x86/include/asm/pgtable_64_types.h | 4 +- arch/x86/kernel/ldt.c | 59 ++++++++++++++++--------- arch/x86/xen/mmu_pv.c | 6 +-- 5 files changed, 67 insertions(+), 48 deletions(-)
-- 2.19.1
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