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(parent: a40f0cc) | patch
kvm: vmx: Check value written to IA32_BNDCFGS
authorJim Mattson <jmattson@google.com>
Tue, 23 May 2017 18:52:54 +0000 (11:52 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 21 Jul 2017 05:44:59 +0000 (07:44 +0200)
commit6ffa92ffaed817cea7625ebf9c7f217e293923be
tree5f461174199ee4d1dd4c03a1d27f682bd3151235tree | snapshot
parenta40f0ccd4f1c2751d5df5d9a63b9cf93ff70d343commit | diff
kvm: vmx: Check value written to IA32_BNDCFGS

commit 4531662d1abf6c1f0e5c2b86ddb60e61509786c8 upstream.

Bits 11:2 must be zero and the linear addess in bits 63:12 must be
canonical. Otherwise, WRMSR(BNDCFGS) should raise #GP.

Fixes: 0dd376e709975779 ("KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save")
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/msr-index.h diff | blob | blame | history
arch/x86/kvm/vmx.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git