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Echo: linux: security update to 6.1.176-1

medium Tenable Self-Hosted Container Security Plugin ID 460061

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: openvswitch: fix possible
 kfree_skb of ERR_PTR After the patch in the "Fixes" tag, the allocation of the "reply" skb can happen
 either before or after locking the ovs_mutex. However, error cleanups still follow the classical reversed
 order, assuming "reply" is allocated before locking: it is freed after unlocking. If "reply" allocation
 happens after locking the mutex and it fails, "reply" is left with an ERR_PTR, and execution jumps to the
 correspondent cleanup stage which will try to free an invalid pointer. Fix this by setting the pointer to
 NULL after having saved its error value. (CVE-2026-53227)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53227

Plugin Details

Severity: Medium

ID: 460061

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-53227

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:N/I:N/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: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-53227