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Echo: linux: security update to 6.1.147-1

medium Tenable Cloud Security Plugin ID 463629

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: usb: gadget: u_serial: Fix race
 condition in TTY wakeup A race condition occurs when gs_start_io() calls either gs_start_rx() or
 gs_start_tx(), as those functions briefly drop the port_lock for usb_ep_queue(). This allows gs_close()
 and gserial_disconnect() to clear port.tty and port_usb, respectively. Use the null-safe TTY Port helper
 function to wake up TTY. Example CPU1: CPU2: gserial_connect() // lock gs_close() // await lock
 gs_start_rx() // unlock usb_ep_queue() gs_close() // lock, reset port.tty and unlock gs_start_rx() // lock
 tty_wakeup() // NPE (CVE-2025-38448)

Solution

Update the linux library and its related packages to version 6.1.147-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-38448

Plugin Details

Severity: Medium

ID: 463629

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2025-38448

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/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: 9/15/2025

Vulnerability Publication Date: 7/25/2025

Reference Information

CVE: CVE-2025-38448