Description
The nlmclnt_mark_reclaim in clntlock.c in NFS lockd in Linux kernel before 2.6.16 allows remote attackers to cause a denial of service (process crash) and deny access to NFS exports via unspecified vectors that trigger a kernel oops (null dereference) and a deadlock.
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 +10 | 2.6.9-55.0.2.EL | RHSA-2007:0488 |
Advisories 1
- RHSA-2007:0488 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- oval:org.mitre.oval:def:10128 vdb-entry signature
- [linux-kernel] 20051218 Re: lockd: couldn't create RPC handle for (host) mailing-list
- 23361 third-party-advisory
- 26289 third-party-advisory
- MDKSA-2007:012 vendor-advisory
- 25838 third-party-advisory
- 23384 third-party-advisory
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9b5b1f5bf9dcdb6f23abf65977a675eb4deba3c0
- [linux-kernel] 20051216 lockd: couldn't create RPC handle for (host) mailing-list
- 23752 third-party-advisory
- 21581 vdb-entry
- http://support.avaya.com/elmodocs2/security/ASA-2007-287.htm
- USN-395-1 vendor-advisory
- RHSA-2007:0488 vendor-advisory
- SUSE-SA:2006:057 vendor-advisory