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linux/arch
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Linus Torvalds ac7b34218a Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 
now that toolchains long support PT_GNU_STACK marking and there's no
 need anymore to force modern programs into having all its user mappings
 executable instead of only the stack and the PROT_EXEC ones. Disable
 that automatic READ_IMPLIES_EXEC forcing on x86-64 and arm64. Add tables
 documenting how READ_IMPLIES_EXEC is handled on x86-64, arm and arm64.
 By Kees Cook.
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Merge tag 'core_core_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull READ_IMPLIES_EXEC changes from Borislav Petkov:
 "Split the old READ_IMPLIES_EXEC workaround from executable
  PT_GNU_STACK now that toolchains long support PT_GNU_STACK marking and
  there's no need anymore to force modern programs into having all its
  user mappings executable instead of only the stack and the PROT_EXEC
  ones.

  Disable that automatic READ_IMPLIES_EXEC forcing on x86-64 and
  arm64.

  Add tables documenting how READ_IMPLIES_EXEC is handled on x86-64, arm
  and arm64.

  By Kees Cook"

* tag 'core_core_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  arm64/elf: Disable automatic READ_IMPLIES_EXEC for 64-bit address spaces
  arm32/64/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK
  arm32/64/elf: Add tables to document READ_IMPLIES_EXEC
  x86/elf: Disable automatic READ_IMPLIES_EXEC on 64-bit
  x86/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK
  x86/elf: Add table to document READ_IMPLIES_EXEC
2020-06-05 13:45:21 -07:00
..
alpha Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-06-04 14:07:08 -07:00
arc kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
arm Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
arm64 Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
c6x mm: free_area_init: use maximal zone PFNs rather than zone sizes 2020-06-03 20:09:43 -07:00
csky kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
h8300 h8300: remove usage of __ARCH_USE_5LEVEL_HACK 2020-06-04 19:06:20 -07:00
hexagon hexagon: remove __ARCH_USE_5LEVEL_HACK 2020-06-04 19:06:21 -07:00
ia64 ia64: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
m68k m68k: mm: simplify detection of memory zone boundaries 2020-06-03 20:09:43 -07:00
microblaze kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
mips kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
nds32 kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
nios2 nios2: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
openrisc openrisc: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
parisc parisc/kmap: remove duplicate kmap code 2020-06-04 19:06:22 -07:00
powerpc powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
riscv RISC-V Patches for the 5.8 Merge Window, Part 1 2020-06-04 20:14:18 -07:00
s390 powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
sh sh: add support for folded p4d page tables 2020-06-04 19:06:21 -07:00
sparc kmap: consolidate kmap_prot definitions 2020-06-04 19:06:22 -07:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching 2020-06-04 11:13:03 -07:00
unicore32 unicore32: remove __ARCH_USE_5LEVEL_HACK 2020-06-04 19:06:21 -07:00
x86 Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
xtensa arch/kmap: define kmap_atomic_prot() for all arch's 2020-06-04 19:06:22 -07:00
.gitignore
Kconfig scs: Remove references to asm/scs.h from core code 2020-05-18 17:47:45 +01:00