The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.21.1 (including) | 2.6.21.1 (including) |
| Red Hat Enterprise Linux 4 | RedHat | kernel-0:2.6.9-55.0.12.EL | * |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-8.1.10.el5 | * |
| Linux-source-2.6.15 | Ubuntu | dapper | * |
| Linux-source-2.6.17 | Ubuntu | edgy | * |
| Linux-source-2.6.20 | Ubuntu | feisty | * |