CVE-2006-4342

The kernel in Red Hat Enterprise Linux 3, when running on SMP systems, allows local users to cause a denial of service (deadlock) by running the shmat function on an shm at the same time that shmctl is removing that shm (IPC_RMID), which prevents a spinlock from being unlocked.

The kernel in Red Hat Enterprise Linux 3, when running on SMP systems, allows local users to cause a denial of service (deadlock) by running the shmat function on an shm at the same time that shmctl is removing that shm (IPC_RMID), which prevents a spinlock from being unlocked.

En núcleo en Red Hat Enterprise Linux 3, al ejecutarse en sistemas SMP, permite a usuarios locales provocar una denegación de servicio (punto muerto) ejecutando la función shmat en un shm al mismo tiempo que shmctl está borrando ese shm (IPC_RMID), lo cual previene a un hilo bloqueado en un bucle (spinlock) de ser desbloqueado.