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openSUSE:12.3
xen
26340-VT-d-intremap-verify-legacy-bridge.patch
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File 26340-VT-d-intremap-verify-legacy-bridge.patch of Package xen
References: CVE-2012-5634 XSA-33 bnc#794316 # HG changeset patch # User Jan Beulich <jbeulich@suse.com> # Date 1357748006 -3600 # Node ID 19fd1237ff0dfa3d97a896d6ed6fbbd33f816a9f # Parent 56b0d5476c11bfd09986080dfa97923586ef474f VT-d: fix interrupt remapping source validation for devices behind legacy bridges Using SVT_VERIFY_BUS here doesn't make sense; native Linux also uses SVT_VERIFY_SID_SQ here instead. This is XSA-33 / CVE-2012-5634. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/drivers/passthrough/vtd/intremap.c +++ b/xen/drivers/passthrough/vtd/intremap.c @@ -469,7 +469,7 @@ static void set_msi_source_id(struct pci set_ire_sid(ire, SVT_VERIFY_BUS, SQ_ALL_16, (bus << 8) | pdev->bus); else if ( pdev_type(seg, bus, devfn) == DEV_TYPE_LEGACY_PCI_BRIDGE ) - set_ire_sid(ire, SVT_VERIFY_BUS, SQ_ALL_16, + set_ire_sid(ire, SVT_VERIFY_SID_SQ, SQ_ALL_16, PCI_BDF2(bus, devfn)); } break;
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