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 19506.224.7

critical Tenable Self-Hosted Container Security Plugin ID 469539

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: nvmet-tcp: fix race between ICReq
handling and queue teardown nvmet_tcp_handle_icreq() updates queue->state after sending an Initialization
Connection Response (ICResp), but it does so without serializing against target-side queue teardown. If an
NVMe/TCP host sends an Initialization Connection Request (ICReq) and immediately closes the connection,
target-side teardown may start in softirq context before io_work drains the already buffered ICReq. In
that case, nvmet_tcp_schedule_release_queue() sets queue->state to NVMET_TCP_Q_DISCONNECTING and drops the
queue reference under state_lock. If io_work later processes that ICReq, nvmet_tcp_handle_icreq() can
still overwrite the state back to NVMET_TCP_Q_LIVE. That defeats the DISCONNECTING-state guard in
nvmet_tcp_schedule_release_queue() and allows a later socket state change to re-enter teardown and issue a
second kref_put() on an already released queue. The ICResp send failure path has the same problem. If
teardown has already moved the queue to DISCONNECTING, a send error can still overwrite the state with
NVMET_TCP_Q_FAILED, again reopening the window for a second teardown path to drop the queue reference. Fix
this by serializing both post-send state transitions with state_lock and bailing out if teardown has
already started. Use -ESHUTDOWN as an internal sentinel for that bail-out path rather than propagating it
as a transport error like -ECONNRESET. Keep nvmet_tcp_socket_error() setting rcv_state to
NVMET_TCP_RECV_ERR before honoring that sentinel so receive-side parsing stays quiesced until the existing
release path completes. (CVE-2026-46135)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.224.7 or later.

Plugin Details

Severity: Critical

ID: 469539

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/3/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-46135

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 5/28/2026

Reference Information

CVE: CVE-2026-46135

Detections

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