Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.448.8

high Tenable Self-Hosted Container Security Plugin ID 469649

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: net/tls: Consume empty data records in
tls_sw_read_sock() A peer may send a zero-length TLS application_data record; TLS 1.3 explicitly permits
these as a traffic-analysis countermeasure (RFC 8446, Section 5.1). After decryption such a record has
full_len == 0. tls_sw_read_sock() hands it to the read_actor, which has no payload to consume and returns
zero. The loop treats a zero return as backpressure (used <= 0), requeues the skb at the head of rx_list,
and stops. rx_list is serviced head-first on the next call, so the empty record is dequeued, fails the
same way, and is requeued again; every later record on the connection is blocked behind it.
tls_sw_recvmsg() does not stall on this: a zero-length data record copies nothing and falls through to
consume_skb(). Mirror that in the read_sock() path by recognizing an empty data record before the actor
runs, consuming it, and continuing. (CVE-2026-72330)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.448.8 or later.

Plugin Details

Severity: High

ID: 469649

Version: Revision 1.6

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/6/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-72330

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 8/11/2026

Reference Information

CVE: CVE-2026-72330

Detections

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