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CVE-2015-8952 Details

Description

The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272	CVE	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee	CVE	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9a61eb4e2471c56a63cd804c7474128138c38ac	CVE	Patch
https://bugzilla.kernel.org/show_bug.cgi?id=107301	CVE	Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1360968	CVE	Issue TrackingThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/82939d7999dfc1f1998c4b1c12e2f19edbdff272	CVE	Vendor Advisory
https://github.com/torvalds/linux/commit/be0726d33cb8f411945884664924bed3cb8c70ee	CVE	Issue TrackingPatch
https://github.com/torvalds/linux/commit/f9a61eb4e2471c56a63cd804c7474128138c38ac	CVE	Issue Tracking
https://lwn.net/Articles/668718/	CVE	Third Party Advisory
https://usn.ubuntu.com/3582-1/	CVE
https://usn.ubuntu.com/3582-2/	CVE
http://www.openwall.com/lists/oss-security/2016/08/22/2	CVE	Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/25/4	CVE	PatchThird Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272	[email protected]	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee	[email protected]	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9a61eb4e2471c56a63cd804c7474128138c38ac	[email protected]	Patch
https://bugzilla.kernel.org/show_bug.cgi?id=107301	[email protected]	Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1360968	[email protected]	Issue TrackingThird Party AdvisoryVDB Entry
https://github.com/torvalds/linux/commit/82939d7999dfc1f1998c4b1c12e2f19edbdff272	[email protected]	Vendor Advisory
https://github.com/torvalds/linux/commit/be0726d33cb8f411945884664924bed3cb8c70ee	[email protected]	Issue TrackingPatch
https://github.com/torvalds/linux/commit/f9a61eb4e2471c56a63cd804c7474128138c38ac	[email protected]	Issue Tracking
https://lwn.net/Articles/668718/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3582-1/	[email protected]
https://usn.ubuntu.com/3582-2/	[email protected]
http://www.openwall.com/lists/oss-security/2016/08/22/2	[email protected]	Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/08/25/4	[email protected]	PatchThird Party Advisory

see all 26 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-19	Data Processing Errors	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.5.7
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 6, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Mar 16, 2018	CVE Modified	[email protected]
Oct 17, 2016	Modified Analysis	[email protected]
Oct 17, 2016	CVE Translated	[email protected]
Oct 17, 2016	Initial Analysis	[email protected]