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Echo: linux: security update to 6.12.95-1

high Tenable Cloud Security Plugin ID 465118

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap() and
 mprotect() access checks The existing SELinux security model for overlayfs is to allow access if the
 current task is able to access the top level file (the "user" file) and the mounter's credentials are
 sufficient to access the lower level file (the "backing" file). Unfortunately, the current code does not
 properly enforce these access controls for both mmap() and mprotect() operations on overlayfs filesystems.
 This patch makes use of the newly created security_mmap_backing_file() LSM hook to provide the missing
 backing file enforcement for mmap() operations, and leverages the backing file API and new LSM blob to
 provide the necessary information to properly enforce the mprotect() access controls. (CVE-2026-46054)

Solution

Update the linux library and its related packages to version 6.12.95-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-46054

Plugin Details

Severity: High

ID: 465118

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.15

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-46054

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/28/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-46054