Description
Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
Published: 2006-10-17
Score: 2.1 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2006-5158 Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
Ubuntu USN Ubuntu USN USN-395-1 Linux kernel vulnerabilities
History

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Canonical Ubuntu Linux
Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T19:41:05.034Z

Reserved: 2006-10-05T00:00:00.000Z

Link: CVE-2006-5173

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2006-10-17T22:07:00.000

Modified: 2026-04-23T00:35:47.467

Link: CVE-2006-5173

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses