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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-01 07:54:11 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-11-01 07:54:11 -1000 |
| commit | 3dfffd506eff69e4246a0f1760e67dd90f9bbb32 (patch) | |
| tree | b479acf1ec2885e10f7b2857123e1ee19e1a70f4 /lib | |
| parent | 17fa6a5f93fcd5dd936e07aee61c014d401df4ae (diff) | |
| parent | 2e8a1acea8597ff42189ea94f0a63fa58640223d (diff) | |
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The important one is a change to the way in which we handle protection
keys around signal delivery so that we're more closely aligned with
the x86 behaviour, however there is also a revert of the previous fix
to disable software tag-based KASAN with GCC, since a workaround
materialised shortly afterwards.
I'd love to say we're done with 6.12, but we're aware of some
longstanding fpsimd register corruption issues that we're almost at
the bottom of resolving.
Summary:
- Fix handling of POR_EL0 during signal delivery so that pushing the
signal context doesn't fail based on the pkey configuration of the
interrupted context and align our user-visible behaviour with that
of x86.
- Fix a bogus pointer being passed to the CPU hotplug code from the
Arm SDEI driver.
- Re-enable software tag-based KASAN with GCC by using an alternative
implementation of '__no_sanitize_address'"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: signal: Improve POR_EL0 handling to avoid uaccess failures
firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state()
Revert "kasan: Disable Software Tag-Based KASAN with GCC"
kasan: Fix Software Tag-Based KASAN with GCC
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.kasan | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index 233ab2096924..98016e137b7f 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan @@ -22,11 +22,8 @@ config ARCH_DISABLE_KASAN_INLINE config CC_HAS_KASAN_GENERIC def_bool $(cc-option, -fsanitize=kernel-address) -# GCC appears to ignore no_sanitize_address when -fsanitize=kernel-hwaddress -# is passed. See https://bugzilla.kernel.org/show_bug.cgi?id=218854 (and -# the linked LKML thread) for more details. config CC_HAS_KASAN_SW_TAGS - def_bool !CC_IS_GCC && $(cc-option, -fsanitize=kernel-hwaddress) + def_bool $(cc-option, -fsanitize=kernel-hwaddress) # This option is only required for software KASAN modes. # Old GCC versions do not have proper support for no_sanitize_address. @@ -101,7 +98,7 @@ config KASAN_SW_TAGS help Enables Software Tag-Based KASAN. - Requires Clang. + Requires GCC 11+ or Clang. Supported only on arm64 CPUs and relies on Top Byte Ignore. |