Catalin Marinas d89a351b08 arm64: Revert support for execute-only user mappings ... commit 24cecc37746393432d994c0dbc251fb9ac7c5d72 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-09 10:19:03 +01:00
..
kasan
backing-dev.c
balloon_compaction.c
bootmem.c
cleancache.c
cma.c	mm/cma.c: fail if fixed declaration can't be honored	2019-08-06 19:06:51 +02:00
cma.h
cma_debug.c
compaction.c	mm/compaction.c: clear total_{migrate,free}_scanned before scanning a new zone	2019-10-05 13:10:13 +02:00
debug.c
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c	mm/filemap.c: don't initiate writeback if mapping has no dirty pages	2019-11-12 19:21:20 +01:00
frame_vector.c
frontswap.c
gup.c	mm/gup.c: remove some BUG_ONs from get_gate_page()	2019-07-31 07:27:08 +02:00
gup_benchmark.c	mm/gup_benchmark.c: prevent integer overflow in ioctl	2019-12-01 09:17:07 +01:00
highmem.c
hmm.c
huge_memory.c	mm, thp, proc: report THP eligibility for each vma	2019-12-17 20:35:45 +01:00
hugetlb.c	hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()	2019-10-29 09:19:59 +01:00
hugetlb_cgroup.c	mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()	2019-11-20 18:45:20 +01:00
hwpoison-inject.c
init-mm.c
internal.h	vmscan: return NODE_RECLAIM_NOSCAN in node_reclaim() when CONFIG_NUMA is n	2019-12-05 09:20:57 +01:00
interval_tree.c
Kconfig
Kconfig.debug
khugepaged.c	coredump: fix race condition between collapse_huge_page() and core dumping	2019-06-22 08:15:21 +02:00
kmemleak-test.c
kmemleak.c	Revert "kmemleak: allow to coexist with fault injection"	2019-08-25 10:47:58 +02:00
ksm.c	mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()	2019-12-01 09:16:11 +01:00
list_lru.c	mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node	2019-06-19 08:17:59 +02:00
maccess.c
madvise.c
Makefile
memblock.c	mm/page_alloc.c: deduplicate __memblock_free_early() and memblock_free()	2019-12-05 09:20:58 +01:00
memcontrol.c	mm: handle no memcg case in memcg_kmem_charge() properly	2019-12-01 09:17:14 +01:00
memfd.c	memfd: Use radix_tree_deref_slot_protected to avoid the warning.	2019-11-20 18:47:53 +01:00
memory-failure.c	mm/memory-failure: poison read receives SIGKILL instead of SIGBUS if mmaped more than once	2019-10-29 09:19:59 +01:00
memory.c	mm, thp, proc: report THP eligibility for each vma	2019-12-17 20:35:45 +01:00
memory_hotplug.c	mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()	2019-12-01 09:17:36 +01:00
mempolicy.c	mm: mempolicy: fix the wrong return value and potential pages leak of mbind	2019-11-20 18:45:19 +01:00
mempool.c
memtest.c
migrate.c	mm: move_pages: return valid node id in status if the page is already on the target node	2020-01-09 10:19:00 +01:00
mincore.c
mlock.c	mm/mlock.c: change count_mm_mlocked_page_nr return type	2019-07-10 09:53:40 +02:00
mm_init.c
mmap.c	arm64: Revert support for execute-only user mappings	2020-01-09 10:19:03 +01:00
mmu_context.c
mmu_notifier.c	mm/mmu_notifier: use hlist_add_head_rcu()	2019-07-31 07:27:08 +02:00
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c	mm: use down_read_killable for locking mmap_sem in access_remote_vm	2019-07-31 07:27:09 +02:00
oom_kill.c	memcg, oom: don't require __GFP_FS when invoking memcg OOM killer	2019-10-05 13:10:07 +02:00
page-writeback.c	mm/page-writeback.c: fix range_cyclic writeback vs writepages deadlock	2019-12-01 09:17:02 +01:00
page_alloc.c	mm/page_alloc.c: use a single function to free page	2019-12-05 09:20:58 +01:00
page_counter.c
page_ext.c
page_idle.c	mm/page_idle.c: fix oops because end_pfn is larger than max_pfn	2019-07-03 13:14:45 +02:00
page_io.c	mm/page_io.c: do not free shared swap slots	2019-12-01 09:17:35 +01:00
page_isolation.c
page_owner.c	mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo	2019-10-29 09:19:58 +01:00
page_poison.c
page_vma_mapped.c
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c	percpu: do not search past bitmap when allocating an area	2019-06-15 11:54:11 +02:00
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c	mm/hmm: fix bad subpage pointer in try_to_unmap_one	2019-08-25 10:47:43 +02:00
rodata_test.c
shmem.c	mm/shmem.c: cast the type of unmap_start to u64	2019-12-17 20:35:42 +01:00
slab.c
slab.h
slab_common.c
slob.c
slub.c	mm/slub: fix a deadlock in show_slab_objects()	2019-10-29 09:19:58 +01:00
sparse-vmemmap.c
sparse.c
swap.c	mm/swap: fix release_pages() when releasing devmap pages	2019-07-31 07:27:03 +02:00
swap_cgroup.c
swap_slots.c
swap_state.c
swapfile.c
truncate.c
usercopy.c	usercopy: Avoid HIGHMEM pfn warning	2019-10-11 18:20:58 +02:00
userfaultfd.c
util.c
vmacache.c
vmalloc.c	mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()	2019-08-16 10:12:40 +02:00
vmpressure.c	mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()	2019-10-17 13:45:19 -07:00
vmscan.c	mm: vmscan: check if mem cgroup is disabled or not before calling memcg slab shrinker	2019-08-06 19:06:54 +02:00
vmstat.c	mm/vmstat.c: fix NUMA statistics updates	2019-12-13 08:51:27 +01:00
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c	mm/zsmalloc.c: fix the migrated zspage statistics.	2020-01-09 10:19:00 +01:00
zswap.c