The process scheduler in the Linux kernel 2.6.16 gives preference to interactive processes that perform voluntary sleeps, which allows local users to cause a denial of service (CPU consumption), as described in Secretly Monopolizing the CPU Without Superuser Privileges.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.16 (including) | 2.6.16 (including) |
| Linux | Ubuntu | devel | * |
| Linux-source-2.6.15 | Ubuntu | dapper | * |
| Linux-source-2.6.17 | Ubuntu | edgy | * |
| Linux-source-2.6.20 | Ubuntu | feisty | * |
| Linux-source-2.6.22 | Ubuntu | gutsy | * |