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 19506.224.80

high Tenable Cloud Security Plugin ID 469642

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: netfilter: nf_queue: hold bridge
skb->dev while queued br_pass_frame_up() rewrites skb->dev from the ingress port to the bridge master
before queueing bridge LOCAL_IN packets. NFQUEUE only holds references on state.in/out and bridge
physdevs, so a queued bridge packet can retain a freed bridge master in skb->dev until reinjection. When
the verdict is reinjected later, br_netif_receive_skb() re-enters the receive path with skb->dev still
pointing at the freed bridge master, triggering a use-after-free. Store skb->dev in the queue entry, hold
a reference on it for the queue lifetime, and use the saved device when dropping queued packets during
NETDEV_DOWN handling. (CVE-2026-52912)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.224.80 or later.

Plugin Details

Severity: High

ID: 469642

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: Medium

Score: 6.9

Percentile: 96.6

Vendor

Vendor Severity: HIGH

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-2026-52912

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: 6/3/2026

Reference Information

CVE: CVE-2026-52912

Detections

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