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Echo: linux: security update to 6.1.135-1

medium Tenable Self-Hosted Container Security Plugin ID 462109

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: igc: fix PTM cycle trigger logic
 Writing to clear the PTM status 'valid' bit while the PTM cycle is triggered results in unreliable PTM
 operation. To fix this, clear the PTM 'trigger' and status after each PTM transaction. The issue can be
 reproduced with the following: $ sudo phc2sys -R 1000 -O 0 -i tsn0 -m Note: 1000 Hz (-R 1000) is
 unrealistically large, but provides a way to quickly reproduce the issue. PHC2SYS exits with: "ioctl
 PTP_OFFSET_PRECISE: Connection timed out" when the PTM transaction fails This patch also fixes a hang in
 igc_probe() when loading the igc driver in the kdump kernel on systems supporting PTM. The igc driver
 running in the base kernel enables PTM trigger in igc_probe(). Therefore the driver is always in PTM
 trigger mode, except in brief periods when manually triggering a PTM cycle. When a crash occurs, the NIC
 is reset while PTM trigger is enabled. Due to a hardware problem, the NIC is subsequently in a bad
 busmaster state and doesn't handle register reads/writes. When running igc_probe() in the kdump kernel,
 the first register access to a NIC register hangs driver probing and ultimately breaks kdump. With this
 patch, igc has PTM trigger disabled most of the time, and the trigger is only enabled for very brief (10 -
 100 us) periods when manually triggering a PTM cycle. Chances that a crash occurs during a PTM trigger are
 not 0, but extremely reduced. (CVE-2025-37875)

Solution

Update the linux library and its related packages to version 6.1.135-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-37875

Plugin Details

Severity: Medium

ID: 462109

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: 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-2025-37875

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: 9/15/2025

Vulnerability Publication Date: 5/5/2025

Reference Information

CVE: CVE-2025-37875