Detections
Analytics

Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 18867.381.161

medium Tenable Cloud Security Plugin ID 467075

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: eventfs: Hold eventfs_mutex and SRCU
 when remount walks events Commit 340f0c7067a9 ("eventfs: Update all the eventfs_inodes from the events
 descriptor") had eventfs_set_attrs() recurse through ei->children on remount. The walk only holds the
 rcu_read_lock() taken by tracefs_apply_options() over tracefs_inodes, which is wrong: -
 list_for_each_entry over ei->children races with the list_del_rcu() in eventfs_remove_rec() --
 LIST_POISON1 deref, same shape as d2603279c7d6. - eventfs_inodes are freed via call_srcu(&eventfs_srcu,
 ...). rcu_read_lock() does not extend an SRCU grace period, so ti->private can be reclaimed under the
 walk. - The writes to ei->attr race with eventfs_set_attr(), which holds eventfs_mutex. Reproducer: while
 :; do mount -o remount,uid=$((RANDOM%1000)) /sys/kernel/tracing; done & while :; do echo "p:kp submit_bio"
 > /sys/kernel/tracing/kprobe_events echo > /sys/kernel/tracing/kprobe_events done Wrap the events portion
 of tracefs_apply_options() in eventfs_remount_lock()/_unlock() that take eventfs_mutex and
 srcu_read_lock(&eventfs_srcu). eventfs_set_attrs() doesn't sleep so the nested rcu_read_lock() is fine;
 lockdep_assert_held() pins the contract. Comment in tracefs_drop_inode() said "RCU cycle" -- it is SRCU.
 (CVE-2026-46106)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18867.381.161 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-121.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 467075

Version: Revision 1.3

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.19

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-2026-46106

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: 5/26/2026

Reference Information

CVE: CVE-2026-46106