Description
Race condition in ip_vs_conn_flush in Linux 2.6 before 2.6.13 and 2.4 before 2.4.32-pre2, when running on SMP systems, allows local users to cause a denial of service (null dereference) by causing a connection timer to expire while the connection table is being flushed before the appropriate lock is acquired.
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 3.1 | kernel-image-2.6.8-hppa | 2.6.8-6sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-ia64 | 2.6.8-14sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-m68k | 2.6.8-4sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-s390 | 2.6.8-5sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-image-2.6.8-sparc | 2.6.8-15sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-patch-powerpc-2.6.8 | 2.6.8-12sarge1 | DSA-922-1 |
| Debian 3.1 | kernel-source-2.6.8 +3 | 2.6.8-16sarge1 | DSA-922-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | kernel +6 | 2.6.9-22.EL | RHSA-2005:514 |
| RHEL 3 | kernel +8 | 2.4.21-37.EL | RHSA-2005:663 |
Advisories 3
- 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-2005:514 Red Hat Security Advisory: Updated kernel packages available for Red Hat Enterprise Linux 4 Update 2 Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-922-1 kernel-source-2.6.8 - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- MDKSA-2005:235 vendor-advisory
- 18684 third-party-advisory
- 18056 third-party-advisory
- 18977 third-party-advisory
- MDKSA-2005:220 vendor-advisory
- MDKSA-2006:044 vendor-advisory
- 15528 vdb-entry
- DSA-922 vendor-advisory
- FLSA:157459-4 vendor-advisory
- USN-219-1 vendor-advisory
- RHSA-2006:0190 vendor-advisory
- http://www.kernel.org/git/?p=linux/kernel/git/marcelo/linux-2.4.git%3Ba=commit%3Bh=e684f066dff5628bb61ad1912de6e8058b5b4c7d
- MDKSA-2005:218 vendor-advisory
- 17826 third-party-advisory
- http://lkml.org/lkml/2005/6/23/249
- http://lkml.org/lkml/2005/6/24/173
- oval:org.mitre.oval:def:11723 vdb-entry signature
- FLSA:157459-3 vendor-advisory
- RHSA-2005:663 vendor-advisory
- MDKSA-2005:219 vendor-advisory