VULNERABILITY INTELLIGENCE

CVE-2006-5173

CVSS score2.1 LOW
EPSS probability0.43%
CISA KEVNot currently listed
Published2006-10-17
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:P

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.

Primary references