Description
The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.
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 5.0 | linux-2.6 | 2.6.26-24lenny1 | DSA-2094-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-194.17.1.el5 | RHSA-2010:0723 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5.4 EUS | kernel +12 | 2.6.18-164.25.1.el5 | RHSA-2010:0670 |
| RHEL 5.3 EUS | kernel +12 | 2.6.18-128.23.1.el5 | RHSA-2010:0660 |
Advisories 4
- RHSA-2010:0723 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0670 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2010:0660 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2094-1 linux-2.6 - several issues Debian Security (DSA / DLA) · Mar 9, 2026
References
- [oss-security] 20100802 Re: CVE request: kernel: gfs2: rename cases kernel panic mailing-list
- RHSA-2010:0723 vendor-advisory
- USN-1000-1 vendor-advisory
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console mailing-list
- 46397 third-party-advisory
- 42124 vdb-entry
- MDVSA-2010:198 vendor-advisory
- RHSA-2010:0670 vendor-advisory
- RHSA-2010:0660 vendor-advisory
- SUSE-SA:2010:040 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- https://bugzilla.redhat.com/show_bug.cgi?id=620300
- 1024386 vdb-entry
- [oss-security] 20100802 CVE request: kernel: gfs2: rename cases kernel panic mailing-list
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=728a756b8fcd22d80e2dbba8117a8a3aafd3f203
- http://support.avaya.com/css/P8/documents/100113326
- DSA-2094 vendor-advisory
- SUSE-SA:2010:054 vendor-advisory