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[PW_SID:1073922] riscv/kvm: fix guest vector leak on host alloc failure #1679

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[PW_SID:1073922] riscv/kvm: fix guest vector leak on host alloc failure #1679

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12 changes: 10 additions & 2 deletions arch/riscv/kvm/vcpu_vector.c
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Original file line number Diff line number Diff line change
Expand Up @@ -75,15 +75,23 @@ void kvm_riscv_vcpu_host_vector_restore(struct kvm_cpu_context *cntx)

int kvm_riscv_vcpu_alloc_vector_context(struct kvm_vcpu *vcpu)
{
int rc = -ENOMEM;

vcpu->arch.guest_context.vector.datap = kzalloc(riscv_v_vsize, GFP_KERNEL);
if (!vcpu->arch.guest_context.vector.datap)
return -ENOMEM;
goto out;

vcpu->arch.host_context.vector.datap = kzalloc(riscv_v_vsize, GFP_KERNEL);
if (!vcpu->arch.host_context.vector.datap)
return -ENOMEM;
goto free_guest_vector_datap;

return 0;

free_guest_vector_datap:
kfree(vcpu->arch.guest_context.vector.datap);
vcpu->arch.guest_context.vector.datap = NULL;
out:
return rc;
}

void kvm_riscv_vcpu_free_vector_context(struct kvm_vcpu *vcpu)
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