diff options
| author | Andrey Konovalov <[email protected]> | 2020-08-06 23:25:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-08-07 11:33:28 -0700 |
| commit | cae9dc35ed9ff82a99754e51d57ff6c332e1f7e4 (patch) | |
| tree | 73cf5312de6615304cf5393ed090812e81efefee | |
| parent | f9409d58e972cada2c524b7f1e54631bb8fa176f (diff) | |
kasan: allow enabling stack tagging for tag-based mode
Use CONFIG_KASAN_STACK to enable stack tagging.
Note, that HWASAN short granules [1] are disabled. Supporting those will
require more kernel changes.
[1] https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html
Signed-off-by: Andrey Konovalov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Alexander Potapenko <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Elena Petrova <[email protected]>
Cc: Marco Elver <[email protected]>
Cc: Vincenzo Frascino <[email protected]>
Cc: Walter Wu <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Link: http://lkml.kernel.org/r/e7febb907b539c3730780df587ce0b38dc558c3d.1596199677.git.andreyknvl@google.com
Link: http://lkml.kernel.org/r/99f7d90a4237431bf5988599fb41358e92876eb0.1596544734.git.andreyknvl@google.com
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | scripts/Makefile.kasan | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan index 03757cc60e06..f4beee1b0013 100644 --- a/scripts/Makefile.kasan +++ b/scripts/Makefile.kasan @@ -44,7 +44,8 @@ else endif CFLAGS_KASAN := -fsanitize=kernel-hwaddress \ - -mllvm -hwasan-instrument-stack=0 \ + -mllvm -hwasan-instrument-stack=$(CONFIG_KASAN_STACK) \ + -mllvm -hwasan-use-short-granules=0 \ $(instrumentation_flags) endif # CONFIG_KASAN_SW_TAGS |