Description
Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.
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 6.0 | linux-2.6 | 2.6.30-8squeeze1 | DTSA-204-1 |
| Debian 5.0 | linux-2.6 | 2.6.26-21lenny3 | DSA-1996-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +11 | 2.6.18-194.el5 | RHSA-2010:0178 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5.4 EUS | kernel +11 | 2.6.18-164.17.1.el5 | RHSA-2010:0380 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 4.8.13-1.1 | openSUSE-SU-2024:10128-1 |
Advisories 5
- RHSA-2010:0380 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2010:0178 Red Hat Security Advisory: Red Hat Enterprise Linux 5.5 kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-1996-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- DTSA-204-1 linux-2.6 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10128-1 kernel-debug-4.8.13-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 37170 vdb-entry
- RHSA-2010:0380 vendor-advisory
- USN-864-1 vendor-advisory
- SUSE-SA:2010:001 vendor-advisory
- DSA-1996 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=541149
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7
- oval:org.mitre.oval:def:11583 vdb-entry signature
- 38017 third-party-advisory
- 38492 third-party-advisory