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SUSE:SLE-12-SP1:Update
xen.5853
xsa237-1.patch
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File xsa237-1.patch of Package xen.5853
From: Jan Beulich <jbeulich@suse.com> Subject: x86: don't allow MSI pIRQ mapping on unowned device MSI setup should be permitted only for existing devices owned by the respective guest (the operation may still be carried out by the domain controlling that guest). This is part of XSA-237. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -1961,7 +1961,10 @@ int map_domain_pirq( if ( !cpu_has_apic ) goto done; - pdev = pci_get_pdev(msi->seg, msi->bus, msi->devfn); + pdev = pci_get_pdev_by_domain(d, msi->seg, msi->bus, msi->devfn); + if ( !pdev ) + goto done; + ret = pci_enable_msi(msi, &msi_desc); if ( ret ) {
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