b244ce9e91
sles10. Patch pygrub to get the kernel and initrd from the image. pygrub-boot-legacy-sles.patch - bnc#842515 - VUL-0: CVE-2013-4375: XSA-71: xen: qemu disk backend (qdisk) resource leak CVE-2013-4375-xsa71.patch - Upstream patches from Jan 52496bea-x86-properly-handle-hvm_copy_from_guest_-phys-virt-errors.patch (Replaces CVE-2013-4355-xsa63.patch) 52496c11-x86-mm-shadow-Fix-initialization-of-PV-shadow-L4-tables.patch (Replaces CVE-2013-4356-xsa64.patch) 52496c32-x86-properly-set-up-fbld-emulation-operand-address.patch (Replaces CVE-2013-4361-xsa66.patch) 52497c6c-x86-don-t-blindly-create-L3-tables-for-the-direct-map.patch 524e971b-x86-idle-Fix-get_cpu_idle_time-s-interaction-with-offline-pcpus.patch 524e9762-x86-percpu-Force-INVALID_PERCPU_AREA-to-non-canonical.patch 524e983e-Nested-VMX-check-VMX-capability-before-read-VMX-related-MSRs.patch 524e98b1-Nested-VMX-fix-IA32_VMX_CR4_FIXED1-msr-emulation.patch 524e9dc0-xsm-forbid-PV-guest-console-reads.patch 5256a979-x86-check-segment-descriptor-read-result-in-64-bit-OUTS-emulation.patch 5256be57-libxl-fix-vif-rate-parsing.patch 5256be84-tools-ocaml-fix-erroneous-free-of-cpumap-in-stub_xc_vcpu_getaffinity.patch 5256be92-libxl-fix-out-of-memory-error-handling-in-libxl_list_cpupool.patch 5257a89a-x86-correct-LDT-checks.patch 5257a8e7-x86-add-address-validity-check-to-guest_map_l1e.patch 5257a944-x86-check-for-canonical-address-before-doing-page-walks.patch 525b95f4-scheduler-adjust-internal-locking-interface.patch 525b9617-sched-fix-race-between-sched_move_domain-and-vcpu_wake.patch 525e69e8-credit-unpause-parked-vcpu-before-destroying-it.patch 525faf5e-x86-print-relevant-tail-part-of-filename-for-warnings-and-crashes.patch - bnc#840196 - L3: MTU size on Dom0 gets reset when booting DomU OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=276
27 lines
1.0 KiB
Diff
27 lines
1.0 KiB
Diff
# Commit d06a0d715ec1423b6c42141ab1b0ff69a3effb56
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# Date 2013-10-11 09:29:43 +0200
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# Author Jan Beulich <jbeulich@suse.com>
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# Committer Jan Beulich <jbeulich@suse.com>
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x86: add address validity check to guest_map_l1e()
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Just like for guest_get_eff_l1e() this prevents accessing as page
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tables (and with the wrong memory attribute) internal data inside Xen
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happening to be mapped with 1Gb pages.
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Signed-off-by: Jan Beulich <jbeulich@suse.com>
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Reviewed-by: Andrew Cooper <andrew.cooper@citrix.com>
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Acked-by: Keir Fraser <keir@xen.org>
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--- a/xen/include/asm-x86/paging.h
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+++ b/xen/include/asm-x86/paging.h
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@@ -360,7 +360,8 @@ guest_map_l1e(struct vcpu *v, unsigned l
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return paging_get_hostmode(v)->guest_map_l1e(v, addr, gl1mfn);
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/* Find this l1e and its enclosing l1mfn in the linear map */
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- if ( __copy_from_user(&l2e,
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+ if ( !__addr_ok(addr) ||
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+ __copy_from_user(&l2e,
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&__linear_l2_table[l2_linear_offset(addr)],
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sizeof(l2_pgentry_t)) != 0 )
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return NULL;
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