fs/direct-io.c in the dio subsystem in the Linux kernel before 2.6.23 does not properly zero out the dio struct, which allows local users to cause a denial of service (OOPS), as demonstrated by a certain fio test.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 2.6.23 (excluding) |
| Red Hat Enterprise Linux 4 | RedHat | kernel-0:2.6.9-78.0.8.EL | * |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-92.1.13.el5 | * |
| Linux-source-2.6.15 | Ubuntu | dapper | * |
| Linux-source-2.6.20 | Ubuntu | feisty | * |
| Linux-source-2.6.22 | Ubuntu | gutsy | * |