Joerg Roedel 61a6bd83ab Revert "x86/mm/legacy: Populate the user page-table with user pgd's" ... This reverts commit 1f40a46cf4. It turned out that this patch is not sufficient to enable PTI on 32 bit systems with legacy 2-level page-tables. In this paging mode the huge-page PTEs are in the top-level page-table directory, where also the mirroring to the user-space page-table happens. So every huge PTE exits twice, in the kernel and in the user page-table. That means that accessed/dirty bits need to be fetched from two PTEs in this mode to be safe, but this is not trivial to implement because it needs changes to generic code just for the sake of enabling PTI with 32-bit legacy paging. As all systems that need PTI should support PAE anyway, remove support for PTI when 32-bit legacy paging is used. Fixes: 7757d607c6 ('x86/pti: Allow CONFIG_PAGE_TABLE_ISOLATION for x86_32') Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: hpa@zytor.com Cc: linux-mm@kvack.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Link: https://lkml.kernel.org/r/1536922754-31379-1-git-send-email-joro@8bytes.org		2018-09-14 17:08:45 +02:00
..
apparmor	apparmor: fix bad debug check in apparmor_secid_to_secctx()	2018-09-03 11:15:29 -07:00
integrity	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-08-15 22:54:12 -07:00
keys	uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name	2018-09-04 16:45:02 -07:00
loadpin	module: replace the existing LSM hook in init_module	2018-07-16 12:31:57 -07:00
selinux	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-08-15 15:04:25 -07:00
smack	Merge branch 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-08-15 22:49:04 -07:00
tomoyo	Kbuild updates for v4.19	2018-08-15 12:09:03 -07:00
yama	…
Kconfig	Revert "x86/mm/legacy: Populate the user page-table with user pgd's"	2018-09-14 17:08:45 +02:00
Makefile	…
commoncap.c	cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias()	2018-08-11 02:05:53 -05:00
device_cgroup.c	docs: fix broken references with multiple hints	2018-06-15 18:10:01 -03:00
inode.c	…
lsm_audit.c	audit: use inline function to get audit context	2018-05-14 17:24:18 -04:00
min_addr.c	…
security.c	init: allow initcall tables to be emitted using relative references	2018-08-22 10:52:47 -07:00