vulnerability

Oracle Linux: CVE-2015-8952: ELSA-2017-3533: Unbreakable Enterprise kernel security update (IMPORTANT)

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Aug 22, 2016
Added
Apr 4, 2017
Modified
Dec 3, 2025

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.
A design flaw was found in the file extended attribute handling of the Linux kernel's handling of cached attributes. Too many entries in the cache cause a soft lockup while attempting to iterate the cache and access relevant locks.

Solution

oracle-linux-upgrade-kernel-uek
Title
NEW

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