5c0f7d38a6
reverse-24757-use-grant-references.patch - fate#313222 - xenstore-chmod should support 256 permissions 26189-xenstore-chmod.patch - bnc#789945 - VUL-0: CVE-2012-5510: xen: Grant table version switch list corruption vulnerability (XSA-26) CVE-2012-5510-xsa26.patch - bnc#789944 - VUL-0: CVE-2012-5511: xen: Several HVM operations do not validate the range of their inputs (XSA-27) CVE-2012-5511-xsa27.patch - bnc#789951 - VUL-0: CVE-2012-5513: xen: XENMEM_exchange may overwrite hypervisor memory (XSA-29) CVE-2012-5513-xsa29.patch - bnc#789948 - VUL-0: CVE-2012-5514: xen: Missing unlock in guest_physmap_mark_populate_on_demand() (XSA-30) CVE-2012-5514-xsa30.patch - bnc#789950 - VUL-0: CVE-2012-5515: xen: Several memory hypercall operations allow invalid extent order values (XSA-31) CVE-2012-5515-xsa31.patch - bnc#789952 - VUL-0: CVE-2012-5525: xen: Several hypercalls do not validate input GFNs (XSA-32) CVE-2012-5525-xsa32.patch - Upstream patches from Jan 26129-ACPI-BGRT-invalidate.patch 26132-tmem-save-NULL-check.patch 26134-x86-shadow-invlpg-check.patch 26139-cpumap-masking.patch 26148-vcpu-timer-overflow.patch (Replaces CVE-2012-4535-xsa20.patch) OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=219
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
References: CVE-2012-4539 XSA-24 bnc#786520
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# HG changeset patch
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# User Ian Jackson <Ian.Jackson@eu.citrix.com>
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# Date 1352893537 0
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# Node ID b64a7d868f06c730a444e990da1a4d816ce3f5dc
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# Parent c7a01b6450e483ca839228bf1e1e44de692e3458
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compat/gnttab: Prevent infinite loop in compat code
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c/s 20281:95ea2052b41b, which introduces Grant Table version 2
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hypercalls introduces a vulnerability whereby the compat hypercall
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handler can fall into an infinite loop.
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If the watchdog is enabled, Xen will die after the timeout.
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This is a security problem, XSA-24 / CVE-2012-4539.
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Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
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Acked-by: Jan Beulich <jbeulich@suse.com>
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Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
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Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
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--- a/xen/common/compat/grant_table.c
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+++ b/xen/common/compat/grant_table.c
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@@ -318,6 +318,8 @@ int compat_grant_table_op(unsigned int c
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#undef XLAT_gnttab_get_status_frames_HNDL_frame_list
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if ( unlikely(__copy_to_guest(cmp_uop, &cmp.get_status, 1)) )
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rc = -EFAULT;
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+ else
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+ i = 1;
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}
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break;
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}
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