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Echo: linux: security update to 6.1.170-1

high Tenable Cloud Security Plugin ID 455131

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: wifi: libertas: fix use-after-free in
 lbs_free_adapter() The lbs_free_adapter() function uses timer_delete() (non-synchronous) for both
 command_timer and tx_lockup_timer before the structure is freed. This is incorrect because timer_delete()
 does not wait for any running timer callback to complete. If a timer callback is executing when
 lbs_free_adapter() is called, the callback will access freed memory since lbs_cfg_free() frees the
 containing structure immediately after lbs_free_adapter() returns. Both timer callbacks
 (lbs_cmd_timeout_handler and lbs_tx_lockup_handler) access priv->driver_lock, priv->cur_cmd, priv->dev,
 and other fields, which would all be use-after-free violations. Use timer_delete_sync() instead to ensure
 any running timer callback has completed before returning. This bug was introduced in commit 8f641d93c38a
 ("libertas: detect TX lockups and reset hardware") where del_timer() was used instead of del_timer_sync()
 in the cleanup path. The command_timer has had the same issue since the driver was first written.
 (CVE-2026-23281)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23281

Plugin Details

Severity: High

ID: 455131

Version: Revision 1.2

Type: Local

Published: 10/1/2026

Updated: 10/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.76

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-2026-23281

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: 5/1/2026

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-23281