Catalin Marinas 24cecc3774 arm64: Revert support for execute-only user mappings ... The ARMv8 64-bit architecture supports execute-only user permissions by clearing the PTE_USER and PTE_UXN bits, practically making it a mostly privileged mapping but from which user running at EL0 can still execute. The downside, however, is that the kernel at EL1 inadvertently reading such mapping would not trip over the PAN (privileged access never) protection. Revert the relevant bits from commit cab15ce604 ("arm64: Introduce execute-only page access permissions") so that PROT_EXEC implies PROT_READ (and therefore PTE_USER) until the architecture gains proper support for execute-only user mappings. Fixes: cab15ce604 ("arm64: Introduce execute-only page access permissions") Cc: <stable@vger.kernel.org> # 4.9.x- Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-01-06 10:10:07 -08:00
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cache.S
context.c
copypage.c
dma-mapping.c	dma-mapping: drop the dev argument to arch_sync_dma_for_*	2019-11-20 20:31:38 +01:00
dump.c	arm64: mm: Fix column alignment for UXN in kernel_page_tables	2019-12-04 11:44:29 +00:00
extable.c
fault.c	arm64: Revert support for execute-only user mappings	2020-01-06 10:10:07 -08:00
flush.c	mm: introduce page_size()	2019-09-24 15:54:08 -07:00
hugetlbpage.c
init.c	arm64: mm: Fix initialisation of DMA zones on non-NUMA systems	2019-12-04 11:25:20 +00:00
ioremap.c	arm64: remove __iounmap	2019-09-04 13:12:26 +01:00
kasan_init.c
Makefile
mmap.c	arm64, mm: move generic mmap layout functions to mm	2019-09-24 15:54:11 -07:00
mmu.c	mm/memory_hotplug: shrink zones when offlining memory	2020-01-04 13:55:08 -08:00
numa.c
pageattr.c
pgd.c	mm: consolidate pgtable_cache_init() and pgd_cache_init()	2019-09-24 15:54:09 -07:00
physaddr.c
proc.S
ptdump_debugfs.c