From: Borislav Petkov <bp@alien8.de>
To: "Yu, Yu-cheng" <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>,
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>,
Kees Cook <keescook@chromium.org>,
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>,
Weijiang Yang <weijiang.yang@intel.com>,
Pengfei Xu <pengfei.xu@intel.com>,
Haitao Huang <haitao.huang@intel.com>,
Michael Kerrisk <mtk.manpages@gmail.com>
Subject: Re: [PATCH v21 06/26] x86/cet: Add control-protection fault handler
Date: Wed, 24 Feb 2021 17:53:32 +0100 [thread overview]
Message-ID: <20210224165332.GF20344@zn.tnic> (raw)
In-Reply-To: <32ac05ef-b50b-c947-095d-bc31a42947a3@intel.com>
On Wed, Feb 24, 2021 at 08:44:45AM -0800, Yu, Yu-cheng wrote:
> > > + force_sig_fault(SIGSEGV, SEGV_CPERR,
> > > + (void __user *)uprobe_get_trap_addr(regs));
> >
> > Why is this calling an uprobes function?
> >
>
> I will change it to error_get_trap_addr().
"/*
* Posix requires to provide the address of the faulting instruction for
* SIGILL (#UD) and SIGFPE (#DE) in the si_addr member of siginfo_t.
..."
Is yours SIGILL or SIGFPE?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-02-24 16:53 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-17 22:27 [PATCH v21 00/26] Control-flow Enforcement: Shadow Stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 01/26] Documentation/x86: Add CET description Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 02/26] x86/cet/shstk: Add Kconfig option for user-mode control-flow protection Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 03/26] x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET) Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 04/26] x86/cpufeatures: Introduce X86_FEATURE_CET and setup functions Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 05/26] x86/fpu/xstate: Introduce CET MSR and XSAVES supervisor states Yu-cheng Yu
2021-02-24 15:34 ` Borislav Petkov
2021-02-24 15:42 ` Yu, Yu-cheng
2021-02-24 15:46 ` Borislav Petkov
2021-02-17 22:27 ` [PATCH v21 06/26] x86/cet: Add control-protection fault handler Yu-cheng Yu
2021-02-24 16:13 ` Borislav Petkov
2021-02-24 16:44 ` Yu, Yu-cheng
2021-02-24 16:53 ` Borislav Petkov [this message]
2021-02-24 17:56 ` Yu, Yu-cheng
2021-02-24 19:20 ` Borislav Petkov
2021-02-24 19:30 ` Andy Lutomirski
2021-02-24 19:42 ` Borislav Petkov
2021-02-24 19:52 ` Yu, Yu-cheng
2021-02-17 22:27 ` [PATCH v21 07/26] x86/mm: Remove _PAGE_DIRTY from kernel RO pages Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 08/26] x86/mm: Introduce _PAGE_COW Yu-cheng Yu
2021-03-01 15:52 ` Borislav Petkov
2021-03-01 18:59 ` Yu, Yu-cheng
[not found] ` <167f58a3-20ef-7210-1d66-cf25f4a9bbef@intel.com>
2021-03-03 17:26 ` Borislav Petkov
2021-02-17 22:27 ` [PATCH v21 09/26] drm/i915/gvt: Change _PAGE_DIRTY to _PAGE_DIRTY_BITS Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 10/26] x86/mm: Update pte_modify for _PAGE_COW Yu-cheng Yu
2021-03-05 14:29 ` Borislav Petkov
2021-03-08 16:51 ` Yu, Yu-cheng
2021-02-17 22:27 ` [PATCH v21 11/26] x86/mm: Update ptep_set_wrprotect() and pmdp_set_wrprotect() for transition from _PAGE_DIRTY to _PAGE_COW Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 12/26] mm: Introduce VM_SHSTK for shadow stack memory Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 13/26] x86/mm: Shadow Stack page fault error checking Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 14/26] x86/mm: Update maybe_mkwrite() for shadow stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 15/26] mm: Fixup places that call pte_mkwrite() directly Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 16/26] mm: Add guard pages around a shadow stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 17/26] mm/mmap: Add shadow stack pages to memory accounting Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 18/26] mm: Update can_follow_write_pte() for shadow stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 19/26] mm: Re-introduce vm_flags to do_mmap() Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 20/26] x86/cet/shstk: User-mode shadow stack support Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 21/26] x86/cet/shstk: Handle signals for shadow stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 22/26] ELF: Introduce arch_setup_elf_property() Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 23/26] x86/cet/shstk: Handle thread shadow stack Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 24/26] x86/cet/shstk: Add arch_prctl functions for " Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 25/26] mm: Move arch_calc_vm_prot_bits() to arch/x86/include/asm/mman.h Yu-cheng Yu
2021-02-17 22:27 ` [PATCH v21 26/26] mm: Introduce PROT_SHSTK for shadow stack Yu-cheng Yu
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