CVEvulnerability

CVE-2006-5173

2.1 LOW Published 2006-10-17 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2006-10-17
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
2.1 LOW — AV: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.

Affected configurations

• linux linux kernel (>= 2.4.0 <= 2.6.19) • canonical ubuntu linux 5.10 • canonical ubuntu linux 6.06 • canonical ubuntu linux 6.10

References