Description
The encode_share_access function in fs/nfs/nfs4xdr.c in the Linux kernel before 2.6.29 allows local users to cause a denial of service (BUG and system crash) by using the mknod system call with a pathname on an NFSv4 filesystem.
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 +12 | 2.6.18-274.17.1.el5 | RHSA-2012:0007 |
Advisories 1
- RHSA-2012:0007 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=dc0b027dfadfcb8a5504f7d8052754bf8d501ab9
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29
- [oss-security] 20120206 Re: CVE-2011-4324 kernel: nfsv4: mknod(2) DoS mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=755440
- https://github.com/torvalds/linux/commit/dc0b027dfadfcb8a5504f7d8052754bf8d501ab9