Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.739.5

high Tenable Cloud Security Plugin ID 475123

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: fou: Fix use-after-free in
 fou_create() fou_create() publishes struct fou through sk_user_data before adding the new FOU port to the
 per-netns list. If fou_add_to_port_list() fails, the error path frees fou while it is still reachable
 through sk_user_data. A concurrent receive can then dereference the freed object in fou_from_sock(). This
 ordering issue was previously noted in the linked discussion. The failure is reachable when local port 0
 is requested. Each socket binds to a different ephemeral port, but fou_cfg_cmp() compares the requested
 port 0 and reports -EALREADY once an entry already exists. Release the tunnel socket before freeing fou so
 sk_user_data is cleared first, and defer reclamation with kfree_rcu() to protect concurrent RCU readers.
 This matches the lifetime handling in fou_release(). (CVE-2026-74496)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.739.5 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-125.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 475123

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

Vendor

Vendor Severity: LOW

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-2026-74496

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

Vulnerability Publication Date: 8/15/2026

Reference Information

CVE: CVE-2026-74496