Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_1, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.675.37

high Tenable Cloud Security Plugin ID 467175

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: audit: Fix data races of
skb_queue_len() readers on audit_queue Multiple readers access audit_queue.qlen via skb_queue_len()
without holding the queue lock or using READ_ONCE(), while kauditd writes to this field via the
skb_dequeue() → __skb_unlink() path with WRITE_ONCE() protected by a spinlock. This constitutes data
races. All affected skb_queue_len(&audit_queue) call sites: - kauditd_thread() wait_event_freezable()
condition - audit_receive_msg() AUDIT_GET handler (s.backlog assignment) - audit_receive() backlog check -
audit_log_start() backlog check and pr_warn() KCSAN reports the following conflicting access pattern (one
example): ================================================================== BUG: KCSAN: data-race in
audit_log_start / skb_dequeue write (marked) to 0xffffffff8512ee20 of 4 bytes by task 661 on cpu 57:
skb_dequeue+0x70/0xf0 kauditd_send_queue+0x71/0x220 kauditd_thread+0x1cb/0x430 kthread+0x1c2/0x210
ret_from_fork+0x162/0x1a0 ret_from_fork_asm+0x1a/0x30 read to 0xffffffff8512ee20 of 4 bytes by task 36586
on cpu 1: audit_log_start+0x2a0/0x6b0 audit_core_dumps+0x64/0xa0 do_coredump+0x14b/0x1260
get_signal+0xeb2/0xf70 arch_do_signal_or_restart+0x41/0x170 exit_to_user_mode_loop+0xa2/0x1c0
do_syscall_64+0x1a3/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0xe0 value changed: 0x00000001 -> 0x00000000
================================================================== Resolve the race by switching to
lockless helper skb_queue_len_lockless(), which internally uses READ_ONCE() and properly pairs with the
WRITE_ONCE() write accesses already present on the writer side. [PM: line length tweak] (CVE-2026-64435)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.675.37 or later.

Plugin Details

Severity: High

ID: 467175

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.88

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-64435

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: 7/23/2026

Reference Information

CVE: CVE-2026-64435

Detections

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