From: Kees Cook <keescook@chromium.org> To: Yu-cheng Yu <yu-cheng.yu@intel.com> Cc: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Andy Lutomirski <luto@kernel.org>, Balbir Singh <bsingharora@gmail.com>, Borislav Petkov <bp@alien8.de>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.com>, Eugene Syromiatnikov <esyr@redhat.com>, Florian Weimer <fweimer@redhat.com>, "H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>, Mike Kravetz <mike.kravetz@oracle.com>, Nadav Amit <nadav.amit@gmail.com>, Oleg Nesterov <oleg@redhat.com>, Pavel Machek <pavel@ucw.cz>, Peter Zijlstra <peterz@infradead.org>, Randy Dunlap <rdunlap@infradead.org>, "Ravi V. Shankar" <ravi.v.shankar@intel.com>, Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>, Dave Martin <Dave.Martin@arm.com>, x86-patch-review@intel.com Subject: Re: [RFC PATCH v9 18/27] x86/cet/shstk: Introduce WRUSS instruction Date: Tue, 25 Feb 2020 13:10:14 -0800 [thread overview] Message-ID: <202002251309.E238DFEEB4@keescook> (raw) In-Reply-To: <20200205181935.3712-19-yu-cheng.yu@intel.com> On Wed, Feb 05, 2020 at 10:19:26AM -0800, Yu-cheng Yu wrote: > WRUSS is a new kernel-mode instruction but writes directly to user Shadow > Stack (SHSTK) memory. This is used to construct a return address on SHSTK > for the signal handler. > > This instruction can fault if the user SHSTK is not valid SHSTK memory. > In that case, the kernel does a fixup. Since these functions aren't used in this patch, should this get merged with patch 19? -Kees > > v4: > - Change to asm goto. > > Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> > --- > arch/x86/include/asm/special_insns.h | 32 ++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h > index 6d37b8fcfc77..1b9b2e79c353 100644 > --- a/arch/x86/include/asm/special_insns.h > +++ b/arch/x86/include/asm/special_insns.h > @@ -222,6 +222,38 @@ static inline void clwb(volatile void *__p) > : [pax] "a" (p)); > } > > +#ifdef CONFIG_X86_INTEL_CET > +#if defined(CONFIG_IA32_EMULATION) || defined(CONFIG_X86_X32) > +static inline int write_user_shstk_32(unsigned long addr, unsigned int val) > +{ > + asm_volatile_goto("1: wrussd %1, (%0)\n" > + _ASM_EXTABLE(1b, %l[fail]) > + :: "r" (addr), "r" (val) > + :: fail); > + return 0; > +fail: > + return -EPERM; > +} > +#else > +static inline int write_user_shstk_32(unsigned long addr, unsigned int val) > +{ > + WARN_ONCE(1, "%s used but not supported.\n", __func__); > + return -EFAULT; > +} > +#endif > + > +static inline int write_user_shstk_64(unsigned long addr, unsigned long val) > +{ > + asm_volatile_goto("1: wrussq %1, (%0)\n" > + _ASM_EXTABLE(1b, %l[fail]) > + :: "r" (addr), "r" (val) > + :: fail); > + return 0; > +fail: > + return -EPERM; > +} > +#endif /* CONFIG_X86_INTEL_CET */ > + > #define nop() asm volatile ("nop") > > > -- > 2.21.0 > -- Kees Cook
WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org> To: Yu-cheng Yu <yu-cheng.yu@intel.com> Cc: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Andy Lutomirski <luto@kernel.org>, Balbir Singh <bsingharora@gmail.com>, Borislav Petkov <bp@alien8.de>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.com>, Eugene Syromiatnikov <esyr@redhat.com>, Florian Weimer <fweimer@redhat.com>, "H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>, Mike Kravetz <mike.kravetz@oracle.com>, Nadav Amit <nadav.amit@gmail.com>, Oleg Nesterov <oleg@redhat.com>, Pavel Subject: Re: [RFC PATCH v9 18/27] x86/cet/shstk: Introduce WRUSS instruction Date: Tue, 25 Feb 2020 13:10:14 -0800 [thread overview] Message-ID: <202002251309.E238DFEEB4@keescook> (raw) In-Reply-To: <20200205181935.3712-19-yu-cheng.yu@intel.com> On Wed, Feb 05, 2020 at 10:19:26AM -0800, Yu-cheng Yu wrote: > WRUSS is a new kernel-mode instruction but writes directly to user Shadow > Stack (SHSTK) memory. This is used to construct a return address on SHSTK > for the signal handler. > > This instruction can fault if the user SHSTK is not valid SHSTK memory. > In that case, the kernel does a fixup. Since these functions aren't used in this patch, should this get merged with patch 19? -Kees > > v4: > - Change to asm goto. > > Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> > --- > arch/x86/include/asm/special_insns.h | 32 ++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h > index 6d37b8fcfc77..1b9b2e79c353 100644 > --- a/arch/x86/include/asm/special_insns.h > +++ b/arch/x86/include/asm/special_insns.h > @@ -222,6 +222,38 @@ static inline void clwb(volatile void *__p) > : [pax] "a" (p)); > } > > +#ifdef CONFIG_X86_INTEL_CET > +#if defined(CONFIG_IA32_EMULATION) || defined(CONFIG_X86_X32) > +static inline int write_user_shstk_32(unsigned long addr, unsigned int val) > +{ > + asm_volatile_goto("1: wrussd %1, (%0)\n" > + _ASM_EXTABLE(1b, %l[fail]) > + :: "r" (addr), "r" (val) > + :: fail); > + return 0; > +fail: > + return -EPERM; > +} > +#else > +static inline int write_user_shstk_32(unsigned long addr, unsigned int val) > +{ > + WARN_ONCE(1, "%s used but not supported.\n", __func__); > + return -EFAULT; > +} > +#endif > + > +static inline int write_user_shstk_64(unsigned long addr, unsigned long val) > +{ > + asm_volatile_goto("1: wrussq %1, (%0)\n" > + _ASM_EXTABLE(1b, %l[fail]) > + :: "r" (addr), "r" (val) > + :: fail); > + return 0; > +fail: > + return -EPERM; > +} > +#endif /* CONFIG_X86_INTEL_CET */ > + > #define nop() asm volatile ("nop") > > > -- > 2.21.0 > -- Kees Cook
next prev parent reply other threads:[~2020-02-25 21:10 UTC|newest] Thread overview: 264+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-05 18:19 [RFC PATCH v9 00/27] Control-flow Enforcement: Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 01/27] Documentation/x86: Add CET description Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-06 0:16 ` Randy Dunlap 2020-02-06 0:16 ` Randy Dunlap 2020-02-06 20:17 ` Yu-cheng Yu 2020-02-06 20:17 ` Yu-cheng Yu 2020-02-06 20:17 ` Yu-cheng Yu 2020-02-25 20:02 ` Kees Cook 2020-02-25 20:02 ` Kees Cook 2020-02-28 15:55 ` Yu-cheng Yu 2020-02-28 15:55 ` Yu-cheng Yu 2020-02-28 15:55 ` Yu-cheng Yu 2020-02-26 17:57 ` Dave Hansen 2020-02-26 17:57 ` Dave Hansen 2020-03-09 17:00 ` Yu-cheng Yu 2020-03-09 17:00 ` Yu-cheng Yu 2020-03-09 17:00 ` Yu-cheng Yu 2020-03-09 17:21 ` Dave Hansen 2020-03-09 17:21 ` Dave Hansen 2020-03-09 19:27 ` Yu-cheng Yu 2020-03-09 19:27 ` Yu-cheng Yu 2020-03-09 19:27 ` Yu-cheng Yu 2020-03-09 19:35 ` Dave Hansen 2020-03-09 19:35 ` Dave Hansen 2020-03-09 19:50 ` H.J. Lu 2020-03-09 19:50 ` H.J. Lu 2020-03-09 19:50 ` H.J. Lu 2020-03-09 20:16 ` Andy Lutomirski 2020-03-09 20:16 ` Andy Lutomirski 2020-03-09 20:54 ` H.J. Lu 2020-03-09 20:54 ` H.J. Lu 2020-03-09 20:54 ` H.J. Lu 2020-03-09 20:59 ` Dave Hansen 2020-03-09 20:59 ` Dave Hansen 2020-03-09 21:12 ` H.J. Lu 2020-03-09 21:12 ` H.J. Lu 2020-03-09 21:12 ` H.J. Lu 2020-03-09 22:02 ` Andy Lutomirski 2020-03-09 22:02 ` Andy Lutomirski 2020-03-09 22:19 ` Dave Hansen 2020-03-09 22:19 ` Dave Hansen 2020-03-09 23:11 ` H.J. Lu 2020-03-09 23:11 ` H.J. Lu 2020-03-09 23:11 ` H.J. Lu 2020-03-09 23:20 ` Dave Hansen 2020-03-09 23:20 ` Dave Hansen 2020-03-09 23:51 ` H.J. Lu 2020-03-09 23:51 ` H.J. Lu 2020-03-09 23:51 ` H.J. Lu 2020-03-09 23:59 ` Andy Lutomirski 2020-03-09 23:59 ` Andy Lutomirski 2020-03-09 23:59 ` Andy Lutomirski 2020-03-10 0:08 ` H.J. Lu 2020-03-10 0:08 ` H.J. Lu 2020-03-10 0:08 ` H.J. Lu 2020-03-10 1:21 ` Andy Lutomirski 2020-03-10 1:21 ` Andy Lutomirski 2020-03-10 2:13 ` H.J. Lu 2020-03-10 2:13 ` H.J. Lu 2020-03-10 2:13 ` H.J. Lu 2020-02-05 18:19 ` [RFC PATCH v9 02/27] x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET) Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:02 ` Kees Cook 2020-02-25 20:02 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 03/27] x86/fpu/xstate: Introduce CET MSR XSAVES supervisor states Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:04 ` Kees Cook 2020-02-25 20:04 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 04/27] x86/cet: Add control-protection fault handler Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:06 ` Kees Cook 2020-02-25 20:06 ` Kees Cook 2020-02-26 17:10 ` Dave Hansen 2020-02-26 17:10 ` Dave Hansen 2020-03-05 20:44 ` Yu-cheng Yu 2020-03-05 20:44 ` Yu-cheng Yu 2020-03-05 20:44 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 05/27] x86/cet/shstk: Add Kconfig option for user-mode Shadow Stack protection Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:07 ` Kees Cook 2020-02-25 20:07 ` Kees Cook 2020-02-26 17:03 ` Dave Hansen 2020-02-26 17:03 ` Dave Hansen 2020-02-26 19:57 ` Pavel Machek 2020-02-26 19:57 ` Pavel Machek 2020-03-05 20:38 ` Yu-cheng Yu 2020-03-05 20:38 ` Yu-cheng Yu 2020-03-05 20:38 ` Yu-cheng Yu 2020-02-26 18:05 ` Dave Hansen 2020-02-26 18:05 ` Dave Hansen 2020-02-27 1:02 ` H.J. Lu 2020-02-27 1:02 ` H.J. Lu 2020-02-27 1:02 ` H.J. Lu 2020-02-27 1:16 ` Dave Hansen 2020-02-27 1:16 ` Dave Hansen 2020-02-27 2:11 ` H.J. Lu 2020-02-27 2:11 ` H.J. Lu 2020-02-27 2:11 ` H.J. Lu 2020-02-27 3:57 ` Andy Lutomirski 2020-02-27 3:57 ` Andy Lutomirski 2020-02-27 18:03 ` Dave Hansen 2020-02-27 18:03 ` Dave Hansen 2020-03-06 18:37 ` Yu-cheng Yu 2020-03-06 18:37 ` Yu-cheng Yu 2020-03-06 18:37 ` Yu-cheng Yu 2020-03-06 19:02 ` Dave Hansen 2020-03-06 19:02 ` Dave Hansen 2020-03-06 21:16 ` Yu-cheng Yu 2020-03-06 21:16 ` Yu-cheng Yu 2020-03-06 21:16 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 06/27] mm: Introduce VM_SHSTK for Shadow Stack memory Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:07 ` Kees Cook 2020-02-25 20:07 ` Kees Cook 2020-02-26 18:07 ` Dave Hansen 2020-02-26 18:07 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 07/27] Add guard pages around a Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:11 ` Kees Cook 2020-02-25 20:11 ` Kees Cook 2020-02-26 18:17 ` Dave Hansen 2020-02-26 18:17 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 08/27] x86/mm: Change _PAGE_DIRTY to _PAGE_DIRTY_HW Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:12 ` Kees Cook 2020-02-25 20:12 ` Kees Cook 2020-02-26 18:20 ` Dave Hansen 2020-02-26 18:20 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 09/27] x86/mm: Introduce _PAGE_DIRTY_SW Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:12 ` Kees Cook 2020-02-25 20:12 ` Kees Cook 2020-02-26 21:35 ` Dave Hansen 2020-02-26 21:35 ` Dave Hansen 2020-04-01 19:08 ` Yu-cheng Yu 2020-04-01 19:08 ` Yu-cheng Yu 2020-04-01 19:08 ` Yu-cheng Yu 2020-04-01 19:22 ` Dave Hansen 2020-04-01 19:22 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 10/27] x86/mm: Update pte_modify, pmd_modify, and _PAGE_CHG_MASK for _PAGE_DIRTY_SW Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-26 22:02 ` Dave Hansen 2020-02-26 22:02 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 11/27] drm/i915/gvt: Change _PAGE_DIRTY to _PAGE_DIRTY_BITS Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:13 ` Kees Cook 2020-02-25 20:13 ` Kees Cook 2020-02-26 22:04 ` Dave Hansen 2020-02-26 22:04 ` Dave Hansen 2020-04-03 15:42 ` Yu-cheng Yu 2020-04-03 15:42 ` Yu-cheng Yu 2020-04-03 15:42 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 12/27] x86/mm: Modify ptep_set_wrprotect and pmdp_set_wrprotect for _PAGE_DIRTY_SW Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:14 ` Kees Cook 2020-02-25 20:14 ` Kees Cook 2020-02-26 22:20 ` Dave Hansen 2020-02-26 22:20 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 13/27] x86/mm: Shadow Stack page fault error checking Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:16 ` Kees Cook 2020-02-25 20:16 ` Kees Cook 2020-02-26 22:47 ` Dave Hansen 2020-02-26 22:47 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 14/27] mm: Handle Shadow Stack page fault Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:20 ` Kees Cook 2020-02-25 20:20 ` Kees Cook 2020-03-05 18:30 ` Yu-cheng Yu 2020-03-05 18:30 ` Yu-cheng Yu 2020-03-05 18:30 ` Yu-cheng Yu 2020-02-27 0:08 ` Dave Hansen 2020-02-27 0:08 ` Dave Hansen 2020-04-07 18:14 ` Yu-cheng Yu 2020-04-07 18:14 ` Yu-cheng Yu 2020-04-07 18:14 ` Yu-cheng Yu 2020-04-07 22:21 ` Dave Hansen 2020-04-07 22:21 ` Dave Hansen 2020-04-08 18:18 ` Yu-cheng Yu 2020-04-08 18:18 ` Yu-cheng Yu 2020-04-08 18:18 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 15/27] mm: Handle THP/HugeTLB " Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 20:59 ` Kees Cook 2020-02-25 20:59 ` Kees Cook 2020-03-13 22:00 ` Yu-cheng Yu 2020-03-13 22:00 ` Yu-cheng Yu 2020-03-13 22:00 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 16/27] mm: Update can_follow_write_pte() for Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-27 0:34 ` Dave Hansen 2020-02-27 0:34 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 17/27] x86/cet/shstk: User-mode Shadow Stack support Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:07 ` Kees Cook 2020-02-25 21:07 ` Kees Cook 2020-02-27 0:55 ` Dave Hansen 2020-02-27 0:55 ` Dave Hansen 2020-02-05 18:19 ` [RFC PATCH v9 18/27] x86/cet/shstk: Introduce WRUSS instruction Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:10 ` Kees Cook [this message] 2020-02-25 21:10 ` Kees Cook 2020-03-05 18:39 ` Yu-cheng Yu 2020-03-05 18:39 ` Yu-cheng Yu 2020-03-05 18:39 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 19/27] x86/cet/shstk: Handle signals for Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:17 ` Kees Cook 2020-02-25 21:17 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 20/27] ELF: UAPI and Kconfig additions for ELF program properties Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 21/27] binfmt_elf: Define GNU_PROPERTY_X86_FEATURE_1_AND Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:18 ` Kees Cook 2020-02-25 21:18 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 22/27] ELF: Add ELF program property parsing support Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:20 ` Kees Cook 2020-02-25 21:20 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 23/27] ELF: Introduce arch_setup_elf_property() Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 24/27] x86/cet/shstk: ELF header parsing for Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:22 ` Kees Cook 2020-02-25 21:22 ` Kees Cook 2020-02-05 18:19 ` [RFC PATCH v9 25/27] x86/cet/shstk: Handle thread " Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:29 ` Kees Cook 2020-02-25 21:29 ` Kees Cook 2020-03-25 21:51 ` Yu-cheng Yu 2020-03-25 21:51 ` Yu-cheng Yu 2020-03-25 21:51 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 26/27] mm/mmap: Add Shadow Stack pages to memory accounting Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` [RFC PATCH v9 27/27] x86/cet/shstk: Add arch_prctl functions for Shadow Stack Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-05 18:19 ` Yu-cheng Yu 2020-02-25 21:31 ` [RFC PATCH v9 00/27] Control-flow Enforcement: " Kees Cook 2020-02-25 21:31 ` Kees Cook
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=202002251309.E238DFEEB4@keescook \ --to=keescook@chromium.org \ --cc=Dave.Martin@arm.com \ --cc=arnd@arndb.de \ --cc=bp@alien8.de \ --cc=bsingharora@gmail.com \ --cc=corbet@lwn.net \ --cc=dave.hansen@linux.intel.com \ --cc=esyr@redhat.com \ --cc=fweimer@redhat.com \ --cc=gorcunov@gmail.com \ --cc=hjl.tools@gmail.com \ --cc=hpa@zytor.com \ --cc=jannh@google.com \ --cc=linux-api@vger.kernel.org \ --cc=linux-arch@vger.kernel.org \ --cc=linux-doc@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=luto@kernel.org \ --cc=mike.kravetz@oracle.com \ --cc=mingo@redhat.com \ --cc=nadav.amit@gmail.com \ --cc=oleg@redhat.com \ --cc=pavel@ucw.cz \ --cc=peterz@infradead.org \ --cc=ravi.v.shankar@intel.com \ --cc=rdunlap@infradead.org \ --cc=tglx@linutronix.de \ --cc=vedvyas.shanbhogue@intel.com \ --cc=x86-patch-review@intel.com \ --cc=x86@kernel.org \ --cc=yu-cheng.yu@intel.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.