CVE-2006-3634: Linux Kernel

Medium severity, CVSS 4.9. EPSS: 0.3% chance of exploitation in the next 30 days.

The (1) __futex_atomic_op and (2) futex_atomic_cmpxchg_inatomic functions in Linux kernel 2.6.17-rc4 to 2.6.18-rc2 perform the atomic futex operation in the kernel address space instead of the user address space, which allows local users to cause a denial of service (crash).

Affected products

• Linux Linux Kernel: version 2.6.17 only; version 2.6.18 only

Published 2006-08-04. Last modified 2026-06-16.