The utrace support in Linux kernel 2.6.18, and other versions, allows local users to cause a denial of service (system hang) related to MT exec + utrace_attach spin failure mode, as demonstrated by ptrace-thrash.c.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.18 (including) | 2.6.18 (including) |
| Linux_kernel | Linux | 2.6.18-rc1 (including) | 2.6.18-rc1 (including) |
| Linux_kernel | Linux | 2.6.18-rc2 (including) | 2.6.18-rc2 (including) |
| Linux_kernel | Linux | 2.6.18-rc3 (including) | 2.6.18-rc3 (including) |
| Linux_kernel | Linux | 2.6.18-rc4 (including) | 2.6.18-rc4 (including) |
| Linux_kernel | Linux | 2.6.18-rc5 (including) | 2.6.18-rc5 (including) |
| Linux_kernel | Linux | 2.6.18-rc6 (including) | 2.6.18-rc6 (including) |
| Linux_kernel | Linux | 2.6.18-rc7 (including) | 2.6.18-rc7 (including) |
| Linux_kernel | Linux | 2.6.18.1 (including) | 2.6.18.1 (including) |
| Linux_kernel | Linux | 2.6.18.2 (including) | 2.6.18.2 (including) |
| Linux_kernel | Linux | 2.6.18.3 (including) | 2.6.18.3 (including) |
| Linux_kernel | Linux | 2.6.18.4 (including) | 2.6.18.4 (including) |
| Enterprise_linux | Redhat | 5.0 (including) | 5.0 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kernel-0:2.6.18-8.1.3.el5 | * |