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Commit 0761d31d authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Greg Kroah-Hartman
Browse files

KVM: SEV: fix double locking due to incorrect backport 



Fix an incorrect line in the 5.4.y and 4.19.y backports of commit
19a23da53932bc ("Fix unsynchronized access to sev members through
svm_register_enc_region"), first applied to 5.4.98 and 4.19.176.

Fixes: 1e80fdc0 ("KVM: SVM: Pin guest memory when SEV is active")
Reported-by: default avatarDov Murik <dovmurik@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # 5.4.x
Cc: stable@vger.kernel.org # 4.19.x
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent ac91b8b8

arch/x86/kvm/svm.c

+0 −1
Original line number Diff line number Diff line
@@ -7097,7 +7097,6 @@ static int svm_register_enc_region(struct kvm *kvm, 
	region->uaddr = range->addr;

	region->size = range->size;



	mutex_lock(&kvm->lock);

	list_add_tail(&region->list, &sev->regions_list);

	mutex_unlock(&kvm->lock);