From: "H.J. Lu" <hjl.tools@xxxxxxxxx> Add ENDBR32 to __kernel_vsyscall entry point. Signed-off-by: H.J. Lu <hjl.tools@xxxxxxxxx> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx> Acked-by: Andy Lutomirski <luto@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> --- 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
