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low2.1

CVE-2006-5173

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 …

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
from 2.4.0 through 2.6.19
CanonicalUbuntu Linux
Versions 5.10, 6.06, 6.10

References