CVE-2015-8953

5.5 MEDIUM

Published: October 16, 2016 Modified: May 06, 2026

Description

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

Patch Vendor Advisory Exploit Third Party Advisory

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5

Source: cve@mitre.org

Exploit Patch Vendor Advisory

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6

Source: cve@mitre.org

Release Notes Vendor Advisory

http://www.openwall.com/lists/oss-security/2016/08/23/9

Source: cve@mitre.org

Exploit Third Party Advisory

http://www.securityfocus.com/bid/92611

Source: cve@mitre.org

https://bugzilla.redhat.com/show_bug.cgi?id=1367814

Source: cve@mitre.org

Issue Tracking Third Party Advisory VDB Entry

https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5

Source: cve@mitre.org

Patch

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5