Google: sys-kernel/lakitu-kernel-6_1: security update to 17819.0.0

medium Tenable Self-Hosted Container Security Plugin ID 450770

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: tracing: Fix warning in
trace_buffered_event_disable() Warning happened in trace_buffered_event_disable() at
WARN_ON_ONCE(!trace_buffered_event_ref) Call Trace: ? __warn+0xa5/0x1b0 ?
trace_buffered_event_disable+0x189/0x1b0 __ftrace_event_enable_disable+0x19e/0x3e0
free_probe_data+0x3b/0xa0 unregister_ftrace_function_probe_func+0x6b8/0x800 event_enable_func+0x2f0/0x3d0
ftrace_process_regex.isra.0+0x12d/0x1b0 ftrace_filter_write+0xe6/0x140 vfs_write+0x1c9/0x6f0 [...] The
cause of the warning is in __ftrace_event_enable_disable(), trace_buffered_event_enable() was called once
while trace_buffered_event_disable() was called twice. Reproduction script show as below, for analysis,
see the comments: ``` #!/bin/bash cd /sys/kernel/tracing/ # 1. Register a 'disable_event' command, then: #
1) SOFT_DISABLED_BIT was set; # 2) trace_buffered_event_enable() was called first time; echo
'cmdline_proc_show:disable_event:initcall:initcall_finish' > \ set_ftrace_filter # 2. Enable the event
registered, then: # 1) SOFT_DISABLED_BIT was cleared; # 2) trace_buffered_event_disable() was called first
time; echo 1 > events/initcall/initcall_finish/enable # 3. Try to call into cmdline_proc_show(), then
SOFT_DISABLED_BIT was # set again!!! cat /proc/cmdline # 4. Unregister the 'disable_event' command, then:
# 1) SOFT_DISABLED_BIT was cleared again; # 2) trace_buffered_event_disable() was called second time!!!
echo '!cmdline_proc_show:disable_event:initcall:initcall_finish' > \ set_ftrace_filter ``` To fix it,
IIUC, we can change to call trace_buffered_event_enable() at fist time soft-mode enabled, and call
trace_buffered_event_disable() at last time soft-mode disabled. (CVE-2023-54211)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 17819.0.0 or later.

Plugin Details

Severity: Medium

ID: 450770

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.42

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-54211

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: 7/21/2021

Reference Information

CVE: CVE-2023-54211

Detections

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