Google: sys-kernel/csql-kernel-6_1: security update to 17800.519.1

high Tenable Cloud Security Plugin ID 454583

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 use-after-free in
print_graph_function_flags during tracer switching Kairui reported a UAF issue in
print_graph_function_flags() during ftrace stress testing [1]. This issue can be reproduced if puting a
'mdelay(10)' after 'mutex_unlock(&trace_types_lock)' in s_start(), and executing the following script: $
echo function_graph > current_tracer $ cat trace > /dev/null & $ sleep 5 # Ensure the 'cat' reaches the
'mdelay(10)' point $ echo timerlat > current_tracer The root cause lies in the two calls to
print_graph_function_flags within print_trace_line during each s_show(): * One through
'iter->trace->print_line()'; * Another through 'event->funcs->trace()', which is hidden in
print_trace_fmt() before print_trace_line returns. Tracer switching only updates the former, while the
latter continues to use the print_line function of the old tracer, which in the script above is
print_graph_function_flags. Moreover, when switching from the 'function_graph' tracer to the 'timerlat'
tracer, s_start only calls graph_trace_close of the 'function_graph' tracer to free 'iter->private', but
does not set it to NULL. This provides an opportunity for 'event->funcs->trace()' to use an invalid
'iter->private'. To fix this issue, set 'iter->private' to NULL immediately after freeing it in
graph_trace_close(), ensuring that an invalid pointer is not passed to other tracers. Additionally, clean
up the unnecessary 'iter->private = NULL' during each 'cat trace' when using wakeup and irqsoff tracers.
[1] https://lore.kernel.org/all/[email protected]/ (CVE-2025-22035)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 17800.519.1 or later.

Plugin Details

Severity: High

ID: 454583

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 97.35

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-2025-22035

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: 4/16/2025

Reference Information

CVE: CVE-2025-22035

Detections

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