From: Yu-cheng Yu <yu-cheng.yu@intel.com>
To: 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>,
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>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [PATCH v13 6/8] x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point
Date: Fri, 25 Sep 2020 07:58:02 -0700 [thread overview]
Message-ID: <20200925145804.5821-7-yu-cheng.yu@intel.com> (raw)
In-Reply-To: <20200925145804.5821-1-yu-cheng.yu@intel.com>
From: "H.J. Lu" <hjl.tools@gmail.com>
Add ENDBR32 to __kernel_vsyscall entry point.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
---
arch/x86/entry/vdso/vdso32/system_call.S | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S
index de1fff7188aa..e331fcdebd95 100644
--- a/arch/x86/entry/vdso/vdso32/system_call.S
+++ b/arch/x86/entry/vdso/vdso32/system_call.S
@@ -14,6 +14,9 @@
ALIGN
__kernel_vsyscall:
CFI_STARTPROC
+#ifdef CONFIG_X86_BRANCH_TRACKING_USER
+ endbr32
+#endif
/*
* Reshuffle regs so that all of any of the entry instructions
* will preserve enough state.
--
2.21.0
next prev parent reply other threads:[~2020-09-25 14:58 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 14:57 [PATCH v13 0/8] Control-flow Enforcement: Indirect Branch Tracking Yu-cheng Yu
2020-09-25 14:57 ` [PATCH v13 1/8] x86/cet/ibt: Add Kconfig option for user-mode " Yu-cheng Yu
2020-09-25 14:57 ` [PATCH v13 2/8] x86/cet/ibt: User-mode Indirect Branch Tracking support Yu-cheng Yu
2020-09-25 14:57 ` [PATCH v13 3/8] x86/cet/ibt: Handle signals for Indirect Branch Tracking Yu-cheng Yu
2020-09-25 14:58 ` [PATCH v13 4/8] x86/cet/ibt: ELF header parsing " Yu-cheng Yu
2020-09-25 14:58 ` [PATCH v13 5/8] x86/cet/ibt: Update arch_prctl functions " Yu-cheng Yu
2020-09-25 14:58 ` Yu-cheng Yu [this message]
2020-09-25 14:58 ` [PATCH v13 7/8] x86/vdso: Insert endbr32/endbr64 to vDSO Yu-cheng Yu
2020-09-25 16:18 ` Andy Lutomirski
2020-09-25 16:24 ` Yu, Yu-cheng
2020-09-25 14:58 ` [PATCH v13 8/8] x86/vsyscall/64: Fixup Shadow Stack and Indirect Branch Tracking for vsyscall emulation Yu-cheng Yu
2020-09-25 16:31 ` Andy Lutomirski
2020-09-25 16:47 ` Yu, Yu-cheng
2020-09-25 16:51 ` Andy Lutomirski
2020-09-28 16:59 ` Yu-cheng Yu
2020-09-28 17:37 ` Andy Lutomirski
2020-09-28 19:04 ` Yu, Yu-cheng
2020-09-29 18:37 ` Yu, Yu-cheng
2020-09-29 19:57 ` Andy Lutomirski
2020-09-29 20:00 ` Andy Lutomirski
2020-09-30 22:33 ` Yu, Yu-cheng
2020-09-30 23:44 ` Andy Lutomirski
2020-10-01 1:00 ` H.J. Lu
2020-10-01 1:10 ` Andy Lutomirski
2020-10-01 1:21 ` H.J. Lu
2020-10-01 16:51 ` Yu, Yu-cheng
2020-10-01 17:26 ` Andy Lutomirski
2020-10-06 19:09 ` Yu, Yu-cheng
2020-10-09 17:42 ` Andy Lutomirski
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