From: Marc Zyngier <[email protected]> We like living dangerously. Nothing explicitely forbids stack-protector to be used in the EL2 code, while distributions routinely compile their kernel with it. We're just lucky that no code actually triggers the instrumentation.
Let's not try our luck for much longer, and disable stack-protector for code living at EL2. Cc: [email protected] Signed-off-by: Marc Zyngier <[email protected]> Acked-by: Christoffer Dall <[email protected]> Signed-off-by: Christoffer Dall <[email protected]> --- arch/arm64/kvm/hyp/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile index aaf42ae..14c4e3b 100644 --- a/arch/arm64/kvm/hyp/Makefile +++ b/arch/arm64/kvm/hyp/Makefile @@ -2,6 +2,8 @@ # Makefile for Kernel-based Virtual Machine module, HYP part # +ccflags-y += -fno-stack-protector + KVM=../../../../virt/kvm obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o -- 2.9.0 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
