From: "H.J. Lu" <hjl.to...@gmail.com>
Add ENDBR32 to __kernel_vsyscall entry point.
Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
Signed-off-by: Yu-cheng Yu <yu-cheng...@intel.com>
Acked-by: Andy Lutomirski <l...@kernel.org>
Reviewed-by: Kees Cook <keesc...@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
