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Vulnerability record · CVE-2010-2943 · published 30 September 2010

CVE-2010-2943: Linux kernel information exposure vulnerability

Linux · Linux Kernel

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

8.1 CVSS 3.1 High EPSS 17% · top 3.0% CWE-200 · Information exposure
8.1CVSS 3.1 base score, v2 6.4
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
50References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33767 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33768 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33769 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33771 Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1920779e67cbf5ea8afef317777c5bf2b8096188
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7124fe0a5b619d65b739477b3b55a20bf805b06d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b6259e7a83647948fa33a736cc832310c8d85aa
http://oss.sgi.com/archives/xfs/2010-06/msg00191.html Broken Link
http://oss.sgi.com/archives/xfs/2010-06/msg00198.html Broken Link
http://secunia.com/advisories/42758 Broken Link
http://secunia.com/advisories/43161 Broken Link
http://secunia.com/advisories/46397 Broken Link
http://support.avaya.com/css/P8/documents/100113326 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35 Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/2 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/19/5 Mailing ListPatchThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0723.html Broken Link
http://www.securityfocus.com/archive/1/520102/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/42527 ExploitThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-1041-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-1057-1 Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2011-0012.html Third Party Advisory
http://www.vupen.com/english/advisories/2011/0070 Broken Link
http://www.vupen.com/english/advisories/2011/0280 Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=624923 Issue TrackingPatchThird Party Advisory
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33767 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33768 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33769 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33771 Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1920779e67cbf5ea8afef317777c5bf2b8096188
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7124fe0a5b619d65b739477b3b55a20bf805b06d
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b6259e7a83647948fa33a736cc832310c8d85aa
http://oss.sgi.com/archives/xfs/2010-06/msg00191.html Broken Link
http://oss.sgi.com/archives/xfs/2010-06/msg00198.html Broken Link
http://secunia.com/advisories/42758 Broken Link
http://secunia.com/advisories/43161 Broken Link
http://secunia.com/advisories/46397 Broken Link
http://support.avaya.com/css/P8/documents/100113326 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35 Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/2 Mailing ListPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2010-2943), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.