Description
Linux kernel 2.4.x and 2.6.x allows local users to cause a denial of service (CPU and memory consumption) and bypass RLIM_MEMLOCK limits via the mlockall call.
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 4 | kernel +6 | 2.6.9-5.0.3.EL | RHSA-2005:092 |
| RHEL 3 | kernel +8 | 2.4.21-37.EL | RHSA-2005:663 |
Advisories 2
- RHSA-2005:663 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 6 Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2005:092 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- oval:org.mitre.oval:def:9890 vdb-entry signature
- 20050107 grsecurity 2.1.0 release / 5 Linux kernel advisories mailing-list
- RHSA-2005:092 vendor-advisory
- 17002 third-party-advisory
- CLA-2005:930 vendor-advisory
- RHSA-2005:663 vendor-advisory
- ADV-2005-1878 vdb-entry