From 8dbfb2bf1bb3848a8069164e205635b2675c24fe Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 20 Dec 2017 16:24:27 -0800 Subject: [PATCH] KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Due to a bad merge resolution between commit f29810335965 ("KVM/x86: Check input paging mode when cs.l is set") and commit b4ef9d4e8cb8 ("KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_set_sregs"), there is a case in kvm_arch_vcpu_ioctl_set_sregs() where vcpu_put() is not called after vcpu_get(). Fix it. Reported-by: syzbot Signed-off-by: Eric Biggers Signed-off-by: Radim Krčmář --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 0e27ee573bd5..07d1c7f66d97 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7706,7 +7706,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, goto out; if (kvm_valid_sregs(vcpu, sregs)) - return -EINVAL; + goto out; apic_base_msr.data = sregs->apic_base; apic_base_msr.host_initiated = true; -- 2.30.2