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>,
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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>,
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Dave Martin <Dave.Martin@arm.com>,
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Pengfei Xu <pengfei.xu@intel.com>,
Haitao Huang <haitao.huang@intel.com>
Cc: Yu-cheng Yu <yu-cheng.yu@intel.com>
Subject: [PATCH v21 6/7] x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point
Date: Wed, 17 Feb 2021 14:31:34 -0800 [thread overview]
Message-ID: <20210217223135.16790-7-yu-cheng.yu@intel.com> (raw)
In-Reply-To: <20210217223135.16790-1-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>
Reviewed-by: Kees Cook <keescook@chromium.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..f19eaec3de3b 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_CET
+ 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:[~2021-02-17 22:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-17 22:31 [PATCH v21 0/7] Control-flow Enforcement: Indirect Branch Tracking Yu-cheng Yu
2021-02-17 22:31 ` [PATCH v21 1/7] x86/cet/ibt: Update Kconfig for user-mode " Yu-cheng Yu
2021-02-17 22:31 ` [PATCH v21 2/7] x86/cet/ibt: User-mode Indirect Branch Tracking support Yu-cheng Yu
2021-02-17 22:31 ` [PATCH v21 3/7] x86/cet/ibt: Handle signals for Indirect Branch Tracking Yu-cheng Yu
2021-02-17 22:31 ` [PATCH v21 4/7] x86/cet/ibt: Update ELF header parsing " Yu-cheng Yu
2021-02-17 22:31 ` [PATCH v21 5/7] x86/cet/ibt: Update arch_prctl functions " Yu-cheng Yu
2021-02-17 22:31 ` Yu-cheng Yu [this message]
2021-02-17 22:31 ` [PATCH v21 7/7] x86/vdso: Insert endbr32/endbr64 to vDSO Yu-cheng Yu
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