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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2006-10-17T22:00:00

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

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

Link: CVE-2006-5173

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2023-11-07T01:59:28.227

Link: CVE-2006-5173

cve-icon Redhat

No data.