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| author | Will Deacon <will.deacon@arm.com> | 2018-12-13 16:14:06 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-12-13 19:42:47 +0300 |
| commit | 84931327a807a4dd65d0d6b53a8ae47845c91f79 (patch) | |
| tree | f759292fbe46dd83d4b3954eb17eb53bfe480d7f /arch/arm64/include/asm/pointer_auth.h | |
| parent | 04ca3204fa09f5f55c8f113b0072004a7b364ff4 (diff) | |
| download | linux-84931327a807a4dd65d0d6b53a8ae47845c91f79.tar.xz | |
arm64: ptr auth: Move per-thread keys from thread_info to thread_struct
We don't need to get at the per-thread keys from assembly at all, so
they can live alongside the rest of the per-thread register state in
thread_struct instead of thread_info.
This will also allow straighforward whitelisting of the keys for
hardened usercopy should we expose them via a ptrace request later on.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/pointer_auth.h')
| -rw-r--r-- | arch/arm64/include/asm/pointer_auth.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/pointer_auth.h b/arch/arm64/include/asm/pointer_auth.h index 80eb03afd677..15d49515efdd 100644 --- a/arch/arm64/include/asm/pointer_auth.h +++ b/arch/arm64/include/asm/pointer_auth.h @@ -80,12 +80,12 @@ static inline unsigned long ptrauth_strip_insn_pac(unsigned long ptr) #define ptrauth_thread_init_user(tsk) \ do { \ struct task_struct *__ptiu_tsk = (tsk); \ - ptrauth_keys_init(&__ptiu_tsk->thread_info.keys_user); \ - ptrauth_keys_switch(&__ptiu_tsk->thread_info.keys_user); \ + ptrauth_keys_init(&__ptiu_tsk->thread.keys_user); \ + ptrauth_keys_switch(&__ptiu_tsk->thread.keys_user); \ } while (0) #define ptrauth_thread_switch(tsk) \ - ptrauth_keys_switch(&(tsk)->thread_info.keys_user) + ptrauth_keys_switch(&(tsk)->thread.keys_user) #else /* CONFIG_ARM64_PTR_AUTH */ #define ptrauth_prctl_reset_keys(tsk, arg) (-EINVAL) |