Detections
Analytics

Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 18867.584.23

medium Tenable Cloud Security Plugin ID 467464

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: ipv4: reject undersized MTUs in
 ip_do_fragment() ip_do_fragment() subtracts the IPv4 header length from the effective MTU and passes the
 resulting payload MTU to ip_frag_next(). If the effective MTU is smaller than hlen + 8, ip_frag_next()
 rounds the fragment payload length down to zero. The fragmentation state then never makes forward
 progress: state->left, state->ptr and state->offset stay unchanged while ip_do_fragment() keeps allocating
 and transmitting header-only fragments until the softlockup detector fires. This is reproducible with a
 route installed using "mtu lock 20", but it is also reproducible without route MTU lock, for example by
 forwarding a packet to a device whose MTU is 20. Fix it in ip_do_fragment() by rejecting mtu < hlen + 8
 with -EMSGSIZE, matching the existing IPv6 fragmentation check. (CVE-2026-80793)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.584.23 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-121.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 467464

Version: Revision 1.5

Type: Local

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 96.04

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-80793

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

Vulnerability Publication Date: 9/4/2026

Reference Information

CVE: CVE-2026-80793