The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.
Advisories
Source ID Title
EUVD EUVD EUVD-2015-2764 The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T05:24:38.025Z

Reserved: 2015-03-21T00:00:00

Link: CVE-2015-2672

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-05-02T10:59:10.310

Modified: 2025-04-12T10:46:40.837

Link: CVE-2015-2672

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-03-18T00:00:00Z

Links: CVE-2015-2672 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses