Description
The signal handling in the Linux kernel before 2.6.22, including 2.6.2, when running on PowerPC systems using HTX, allows local users to cause a denial of service via unspecified vectors involving floating point corruption and concurrency, related to clearing of MSR bits.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +10 | 2.6.18-8.1.8.el5 | RHSA-2007:0595 |
Advisories 1
- RHSA-2007:0595 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- RHSA-2007:0595 vendor-advisory
- 25955 third-party-advisory
- 27227 third-party-advisory
- 26664 third-party-advisory
- SUSE-SA:2007:051 vendor-advisory
- SUSE-SA:2007:053 vendor-advisory
- 37118 vdb-entry
- oval:org.mitre.oval:def:9936 vdb-entry signature
- 28706 third-party-advisory
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=245580
- 24845 vdb-entry
- 1018347 vdb-entry
- kernel-htx-signal-dos(35383) vdb-entry
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- USN-574-1 vendor-advisory
- 25963 third-party-advisory