H. Peter Anvin 4640c7ee9b x86, smap: smap_violation() is bogus if CONFIG_X86_SMAP is off ... If CONFIG_X86_SMAP is disabled, smap_violation() tests for conditions which are incorrect (as the AC flag doesn't matter), causing spurious faults. The dynamic disabling of SMAP (nosmap on the command line) is fine because it disables X86_FEATURE_SMAP, therefore causing the static_cpu_has() to return false. Found by Fengguang Wu's test system. [ v3: move all predicates into smap_violation() ] [ v2: use IS_ENABLED() instead of #ifdef ] Reported-by: Fengguang Wu <fengguang.wu@intel.com> Link: http://lkml.kernel.org/r/20140213124550.GA30497@localhost Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org> # v3.7+		2014-02-13 08:40:52 -08:00
..
kmemcheck	bug.h: add include of it to various implicit C users	2012-02-29 17:15:08 -05:00
amdtopology.c	x86/mm/numa: Simplify some bit mangling	2013-04-10 19:06:26 +02:00
dump_pagetables.c	x86, mm: Create symbolic index into address_markers array	2010-07-20 16:56:19 -07:00
extable.c	x86, extable: Switch to relative exception table entries	2012-04-20 17:22:34 -07:00
fault.c	x86, smap: smap_violation() is bogus if CONFIG_X86_SMAP is off	2014-02-13 08:40:52 -08:00
gup.c	mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE	2014-01-23 16:36:50 -08:00
highmem_32.c	mm: accurately calculate zone->managed_pages for highmem zones	2013-07-03 16:07:33 -07:00
hugetlbpage.c	x86/mm: Implement ASLR for hugetlb mappings	2013-11-19 14:24:50 +01:00
init.c	arch/x86/mm/init.c: fix incorrect function name in alloc_low_pages()	2013-11-13 12:09:11 +09:00
init_32.c	memblock: make memblock_set_node() support different memblock_type	2014-01-21 16:19:44 -08:00
init_64.c	memblock: make memblock_set_node() support different memblock_type	2014-01-21 16:19:44 -08:00
iomap_32.c	mm: fix race in kunmap_atomic()	2010-10-27 18:03:05 -07:00
ioremap.c	mm: Remove unused variable idx0 in __early_ioremap()	2013-08-13 11:46:36 +02:00
kmmio.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
Makefile	x86, trace: Add page fault tracepoints	2013-11-08 14:15:49 -08:00
memtest.c	x86/mm: memblock: switch to use NUMA_NO_NODE	2014-01-21 16:19:47 -08:00
mm_internal.h	x86, mm: Move after_bootmem to mm_internel.h	2012-11-17 11:59:45 -08:00
mmap.c	x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member	2013-08-22 10:19:35 -07:00
mmio-mod.c	x86: delete __cpuinit usage from all x86 files	2013-07-14 19:36:56 -04:00
numa.c	arch/x86/mm/numa.c: fix array index overflow when synchronizing nid to memblock.reserved.	2014-02-06 13:48:51 -08:00
numa_32.c	x86: Fix the initialization of physnode_map	2014-02-01 22:15:51 -08:00
numa_64.c	x86, mm: kill numa_free_all_bootmem()	2012-11-17 11:59:47 -08:00
numa_emulation.c	x86: delete __cpuinit usage from all x86 files	2013-07-14 19:36:56 -04:00
numa_internal.h	x86-32, mm: Rip out x86_32 NUMA remapping code	2013-01-31 14:12:30 -08:00
pageattr-test.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
pageattr.c	x86/mm/cpa: Map in an arbitrary pgd	2013-11-02 11:09:35 +00:00
pat.c	x86: Do not try to sync identity map for non-mapped pages	2013-03-07 13:23:28 -08:00
pat_internal.h	x86, pat: Fix memory leak in free_memtype	2010-05-26 11:26:04 -07:00
pat_rbtree.c	rbtree: move augmented rbtree functionality to rbtree_augmented.h	2012-10-09 16:22:40 +09:00
pf_in.c	x86: Eliminate various 'set but not used' warnings	2011-05-21 19:10:33 +02:00
pf_in.h
pgtable.c	x86, mm: do not leak page->ptl for pmd page tables	2013-11-21 16:42:28 -08:00
pgtable_32.c	Disintegrate asm/system.h for X86	2012-03-28 18:11:12 +01:00
physaddr.c	x86, mm: Make DEBUG_VIRTUAL work earlier in boot	2013-01-25 16:33:22 -08:00
physaddr.h
setup_nx.c	x86: delete __cpuinit usage from all x86 files	2013-07-14 19:36:56 -04:00
srat.c	* Avoid WARN_ON() when mapping BGRT on Baytrail (EFI 32-bit).	2014-02-07 11:27:30 -08:00
testmmiotrace.c	x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages	2010-06-18 11:30:09 +02:00
tlb.c	x86/mm: Eliminate redundant page table walk during TLB range flushing	2014-01-25 09:10:43 +01:00