Echo: linux: security update to 6.1.176-1

medium Tenable Cloud Security Plugin ID 457291

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: PCI: endpoint: pci-epf-vntb: Remove
duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to
perform later. This leads to an oops when .allow_link fails or when .drop_link is performed. The following
is an example oops of the former case: Unable to handle kernel paging request at virtual address
dead000000000108 [...] [dead000000000108] address between user and kernel address ranges Internal error:
Oops: 0000000096000044 [#1] SMP [...] Call trace: pci_epc_remove_epf+0x78/0xe0 (P)
pci_primary_epc_epf_link+0x88/0xa8 configfs_symlink+0x1f4/0x5a0 vfs_symlink+0x134/0x1d8
do_symlinkat+0x88/0x138 __arm64_sys_symlinkat+0x74/0xe0 [...] Remove the helper, and drop pci_epc_put().
EPC device refcounting is tied to the configfs EPC group lifetime, and pci_epc_put() in the .drop_link
path is sufficient. (CVE-2026-31594)

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-2026-31594

Plugin Details

Severity: Medium

ID: 457291

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

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-2026-31594

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: 5/1/2026

Vulnerability Publication Date: 4/24/2026

Reference Information

CVE: CVE-2026-31594