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dlan 14/01/24 15:25:38 |
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Added: xen-4-XSA-83.patch xen-4.2-XSA-87.patch |
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xen-4.3-XSA-87.patch |
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Log: |
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fix security bugs #499054, #499124 |
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|
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(Portage version: 2.2.8/cvs/Linux x86_64, signed Manifest commit with key 0xAABEFD55) |
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Revision Changes Path |
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1.1 app-emulation/xen/files/xen-4-XSA-83.patch |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4-XSA-83.patch?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4-XSA-83.patch?rev=1.1&content-type=text/plain |
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Index: xen-4-XSA-83.patch |
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=================================================================== |
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x86/irq: avoid use-after-free on error path in pirq_guest_bind() |
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|
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This is XSA-83. |
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|
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Coverity-ID: 1146952 |
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Signed-off-by: Andrew Cooper <andrew.cooper3@××××××.com> |
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Reviewed-by: Jan Beulich <jbeulich@××××.com> |
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|
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--- a/xen/arch/x86/irq.c |
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+++ b/xen/arch/x86/irq.c |
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@@ -1590,8 +1590,7 @@ int pirq_guest_bind(struct vcpu *v, stru |
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printk(XENLOG_G_INFO |
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"Cannot bind IRQ%d to dom%d. Out of memory.\n", |
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pirq->pirq, v->domain->domain_id); |
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- rc = -ENOMEM; |
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- goto out; |
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+ return -ENOMEM; |
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} |
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|
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action = newaction; |
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|
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|
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1.1 app-emulation/xen/files/xen-4.2-XSA-87.patch |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4.2-XSA-87.patch?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4.2-XSA-87.patch?rev=1.1&content-type=text/plain |
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|
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Index: xen-4.2-XSA-87.patch |
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=================================================================== |
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x86: PHYSDEVOP_{prepare,release}_msix are privileged |
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|
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Yet this wasn't being enforced. |
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|
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This is XSA-87. |
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|
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Signed-off-by: Jan Beulich <jbeulich@××××.com> |
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|
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--- a/xen/arch/x86/physdev.c |
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+++ b/xen/arch/x86/physdev.c |
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@@ -612,7 +612,9 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_H |
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case PHYSDEVOP_release_msix: { |
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struct physdev_pci_device dev; |
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|
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- if ( copy_from_guest(&dev, arg, 1) ) |
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+ if ( !IS_PRIV(v->domain) ) |
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+ ret = -EPERM; |
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+ else if ( copy_from_guest(&dev, arg, 1) ) |
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ret = -EFAULT; |
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else |
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ret = pci_prepare_msix(dev.seg, dev.bus, dev.devfn, |
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|
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|
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1.1 app-emulation/xen/files/xen-4.3-XSA-87.patch |
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|
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file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4.3-XSA-87.patch?rev=1.1&view=markup |
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plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/app-emulation/xen/files/xen-4.3-XSA-87.patch?rev=1.1&content-type=text/plain |
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|
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Index: xen-4.3-XSA-87.patch |
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=================================================================== |
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x86: PHYSDEVOP_{prepare,release}_msix are privileged |
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|
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Yet this wasn't being enforced. |
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|
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This is XSA-87. |
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|
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Signed-off-by: Jan Beulich <jbeulich@××××.com> |
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Reviewed-by: Andrew Cooper <andrew.cooper3@××××××.com> |
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|
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--- 2014-01-14.orig/xen/arch/x86/physdev.c 2013-11-18 11:03:37.000000000 +0100 |
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+++ 2014-01-14/xen/arch/x86/physdev.c 2014-01-22 12:47:47.000000000 +0100 |
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@@ -640,7 +640,10 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_H |
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if ( copy_from_guest(&dev, arg, 1) ) |
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ret = -EFAULT; |
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else |
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- ret = pci_prepare_msix(dev.seg, dev.bus, dev.devfn, |
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+ ret = xsm_resource_setup_pci(XSM_PRIV, |
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+ (dev.seg << 16) | (dev.bus << 8) | |
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+ dev.devfn) ?: |
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+ pci_prepare_msix(dev.seg, dev.bus, dev.devfn, |
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cmd != PHYSDEVOP_prepare_msix); |
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break; |
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} |
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