Description
The arch_dup_task_struct function in the Transactional Memory (TM) implementation in arch/powerpc/kernel/process.c in the Linux kernel before 3.13.7 on the powerpc platform does not properly interact with the clone and fork system calls, which allows local users to cause a denial of service (Program Check and system crash) via certain instructions that are executed with the processor in the Transactional state.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 3.13.7-1 | — |
| Debian 13 | linux | 3.13.7-1 | — |
| Debian 12 | linux | 3.13.7-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | perf +17 | 3.10.0-123.6.3.el7 | RHSA-2014:1023 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | perf +11 | 3.10.0-123.6.3.el7 | ELSA-2014-1023 |
Advisories 2
- RHSA-2014:1023 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- ELSA-2014-1023 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 6, 2014
References
- 57436 third-party-advisory
- linux-kernel-cve20142673-dos(92113) vdb-entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=621b5060e823301d0cba4cb52a7ee3491922d291
- 66477 vdb-entry
- [oss-security] 20140330 Re: CVE request: Linux Kernel, two security issues mailing-list
- https://github.com/torvalds/linux/commit/621b5060e823301d0cba4cb52a7ee3491922d291
- https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.15
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.7