linux/arch/arm64
Andrey Konovalov 080eb83f54 kasan: initialize shadow to 0xff for tag-based mode
A tag-based KASAN shadow memory cell contains a memory tag, that
corresponds to the tag in the top byte of the pointer, that points to that
memory.  The native top byte value of kernel pointers is 0xff, so with
tag-based KASAN we need to initialize shadow memory to 0xff.

[cai@lca.pw: arm64: skip kmemleak for KASAN again\
  Link: http://lkml.kernel.org/r/20181226020550.63712-1-cai@lca.pw
Link: http://lkml.kernel.org/r/5cc1b789aad7c99cf4f3ec5b328b147ad53edb40.1544099024.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-28 12:11:43 -08:00
..
boot ARM: SoC fixes 2018-12-10 09:06:22 -08:00
configs arm64: defconfig: Enable some IPMI configs 2018-11-02 11:39:50 -07:00
crypto crypto: arm64/chacha - use combined SIMD/ALU routine for more speed 2018-12-13 18:24:55 +08:00
include kasan, arm64: adjust shadow size for tag-based mode 2018-12-28 12:11:43 -08:00
kernel arm64 festive updates for 4.21 2018-12-25 17:41:56 -08:00
kvm * ARM: selftests improvements, large PUD support for HugeTLB, 2018-12-26 11:46:28 -08:00
lib arm64: string: use asm EXPORT_SYMBOL() 2018-12-10 11:50:12 +00:00
mm kasan: initialize shadow to 0xff for tag-based mode 2018-12-28 12:11:43 -08:00
net bpf: arm64: Enable arm64 jit to provide bpf_line_info 2018-12-12 02:16:56 +01:00
xen
Kconfig arm64 festive updates for 4.21 2018-12-25 17:41:56 -08:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Kconfig.platforms ARM: SoC platform updates for 4.20 2018-10-29 15:37:33 -07:00
Makefile kasan, arm64: adjust shadow size for tag-based mode 2018-12-28 12:11:43 -08:00