From 8a62dee9ceff3056c7e0bd9632bac39bee2a51b3 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 2 Oct 2020 12:30:34 +0200 Subject: [PATCH] x86/vLAPIC: don't leak regs page from vlapic_init() upon error Fixes: 8a981e0bf25e ("Make map_domain_page_global fail") Signed-off-by: Jan Beulich Reviewed-by: Andrew Cooper --- xen/arch/x86/hvm/vlapic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/x86/hvm/vlapic.c b/xen/arch/x86/hvm/vlapic.c index 4e3861eb7d..59660a8af4 100644 --- a/xen/arch/x86/hvm/vlapic.c +++ b/xen/arch/x86/hvm/vlapic.c @@ -1625,6 +1625,7 @@ int vlapic_init(struct vcpu *v) vlapic->regs = __map_domain_page_global(vlapic->regs_page); if ( vlapic->regs == NULL ) { + free_domheap_page(vlapic->regs_page); dprintk(XENLOG_ERR, "map vlapic regs error: %d/%d\n", v->domain->domain_id, v->vcpu_id); return -ENOMEM; -- 2.39.5