Detections
Analytics

Echo: linux: security update to 6.1.176-1

high Tenable Cloud Security Plugin ID 464420

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: qrtr: ns: Fix use-after-free in
 driver remove() In the remove callback, if a packet arrives after destroy_workqueue() is called, but
 before sock_release(), the qrtr_ns_data_ready() callback will try to queue the work, causing use-after-
 free issue. Fix this issue by saving the default 'sk_data_ready' callback during qrtr_ns_init() and use it
 to replace the qrtr_ns_data_ready() callback at the start of remove(). This ensures that even if a packet
 arrives after destroy_workqueue(), the work struct will not be dereferenced. Note that it is also required
 to ensure that the RX threads are completed before destroying the workqueue, because the threads could be
 using the qrtr_ns_data_ready() callback. (CVE-2026-46047)

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-2026-46047

Plugin Details

Severity: High

ID: 464420

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.99

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-46047

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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-2026-46047