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 associa…

published 2010-09-08 16y ago modified 2026-06-16 4mo ago also EUVD-2010-2802

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

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.

Patch / fix

fixed in 1 distros 1 links 3

linux linux_kernel 2.6.35

kernel RHEL 5 2.6.18-194.17.1.el5
kernel-PAE RHEL 5 2.6.18-194.17.1.el5
kernel-xen RHEL 5 2.6.18-194.17.1.el5
kernel-kdump RHEL 5 2.6.18-194.17.1.el5
kernel-debuginfo-common RHEL 5 2.6.18-194.17.1.el5
kernel RHEL 5.4 EUS 2.6.18-164.25.1.el5
kernel-PAE RHEL 5.4 EUS 2.6.18-164.25.1.el5
kernel-xen RHEL 5.4 EUS 2.6.18-164.25.1.el5

red hat advisories RHSA-2010:0723 RHSA-2010:0670 RHSA-2010:0660

openwall.com/lists/oss-security/2010/08/02/10 advisory
bugzilla.redhat.com/show_bug.cgi?id=620300 advisory
openwall.com/lists/oss-security/2010/08/02/1 advisory

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-2798 updated 2026-06-27 cvss 7.2

kernel: gfs2: rename causes kernel panic

Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-194.17.1.el5, kernel-PAE 2.6.18-194.17.1.el5, kernel-xen 2.6.18-194.17.1.el5, kernel-kdump 2.6.18-194.17.1.el5, kernel-debuginfo-common 2.6.18-194.17.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-194.17.1.el5, kernel-PAE 2.6.18-194.17.1.el5, kernel-xen 2.6.18-194.17.1.el5, kernel-debuginfo-common 2.6.18-194.17.1.el5
fixed: vendor fix RHSA-2010:0723
Red Hat Enterprise Linux EUS (v. 5.3 server) kernel 2.6.18-128.23.1.el5, kernel-PAE 2.6.18-128.23.1.el5, kernel-xen 2.6.18-128.23.1.el5, kernel-kdump 2.6.18-128.23.1.el5, kernel-debuginfo-common 2.6.18-128.23.1.el5
fixed: vendor fix RHSA-2010:0660
Red Hat Enterprise Linux EUS (v. 5.4 server) kernel 2.6.18-164.25.1.el5, kernel-PAE 2.6.18-164.25.1.el5, kernel-xen 2.6.18-164.25.1.el5, kernel-kdump 2.6.18-164.25.1.el5, kernel-debuginfo-common 2.6.18-164.25.1.el5
fixed: vendor fix RHSA-2010:0670

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-476 NULL Pointer Dereference

Technology feeds

Linux kernel rss critical rss

References

openwall.com /lists/oss-security/2010/08/02/10
mailing-list, patch, third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=620300
issue-tracking, patch, third-party-advisory
openwall.com /lists/oss-security/2010/08/02/1
mailing-list, patch, third-party-advisory
redhat.com /support/errata/RHSA-2010-0723.html
vendor-advisory, broken-link
ubuntu.com /usn/USN-1000-1
vendor-advisory, third-party-advisory
mandriva.com /security/advisories?name=MDVSA-2010:198
vendor-advisory, broken-link
redhat.com /support/errata/RHSA-2010-0670.html
vendor-advisory, broken-link
redhat.com /support/errata/RHSA-2010-0660.html
vendor-advisory, broken-link
lists.opensuse.org /opensuse-security-announce/2010-09/msg00004.html
vendor-advisory, mailing-list, third-party-advisory
debian.org /security/2010/dsa-2094
vendor-advisory, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2010-11/msg00000.html
vendor-advisory, mailing-list, third-party-advisory
securityfocus.com /archive/1/520102/100/0/threaded
mailing-list, third-party-advisory, vdb-entry
secunia.com /advisories/46397
third-party-advisory, broken-link
securityfocus.com /bid/42124
vdb-entry, third-party-advisory
kernel.org /pub/linux/kernel/v2.6/ChangeLog-2.6.35
broken-link
securitytracker.com /id?1024386
vdb-entry, third-party-advisory
vmware.com /security/advisories/VMSA-2011-0012.html
third-party-advisory
git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=728a756b8fcd22d80e2dbba8117a8a3aafd3f203
support.avaya.com /css/P8/documents/100113326
third-party-advisory

Sources

CVE List CVE-2010-2798
NVD CVE-2010-2798

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.