Echo: linux: security update to 6.1.159-1

medium Tenable Cloud Security Plugin ID 455325

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: net: sched: act_ife: initialize struct
tc_ife to fix KMSAN kernel-infoleak Fix a KMSAN kernel-infoleak detected by the syzbot . [net?] KMSAN:
kernel-infoleak in __skb_datagram_iter In tcf_ife_dump(), the variable 'opt' was partially initialized
using a designatied initializer. While the padding bytes are reamined uninitialized. nla_put() copies the
entire structure into a netlink message, these uninitialized bytes leaked to userspace. Initialize the
structure with memset before assigning its fields to ensure all members and padding are cleared prior to
beign copied. This change silences the KMSAN report and prevents potential information leaks from the
kernel memory. This fix has been tested and validated by syzbot. This patch closes the bug reported at the
following syzkaller link and ensures no infoleak. (CVE-2025-40278)

Solution

Update the linux library and its related packages to version 6.1.159-1 or later.

Plugin Details

Severity: Medium

ID: 455325

Version: Revision 1.2

Type: Local

Family: Echo Local Security Checks

Published: 10/1/2026

Updated: 10/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.42

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-40278

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/7/2025

Vulnerability Publication Date: 12/6/2025

Reference Information

CVE: CVE-2025-40278

Detections

Analytics