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Google: sys-kernel/lakitu-kernel-6_1: security update to 17872.0.0

high Tenable Cloud Security Plugin ID 451504

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: bpf: Disable preemption in
 bpf_perf_event_output The nesting protection in bpf_perf_event_output relies on disabled preemption, which
 is guaranteed for kprobes and tracepoints. However bpf_perf_event_output can be also called from uprobes
 context through bpf_prog_run_array_sleepable function which disables migration, but keeps preemption
 enabled. This can cause task to be preempted by another one inside the nesting protection and lead
 eventually to two tasks using same perf_sample_data buffer and cause crashes like: kernel tried to execute
 NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle page fault for address:
 ffffffff82be3eea ... Call Trace: ? __die+0x1f/0x70 ? page_fault_oops+0x176/0x4d0 ?
 exc_page_fault+0x132/0x230 ? asm_exc_page_fault+0x22/0x30 ? perf_output_sample+0x12b/0x910 ?
 perf_event_output+0xd0/0x1d0 ? bpf_perf_event_output+0x162/0x1d0 ?
 bpf_prog_c6271286d9a4c938_krava1+0x76/0x87 ? __uprobe_perf_func+0x12b/0x540 ?
 uprobe_dispatcher+0x2c4/0x430 ? uprobe_notify_resume+0x2da/0xce0 ? atomic_notifier_call_chain+0x7b/0x110 ?
 exit_to_user_mode_prepare+0x13e/0x290 ? irqentry_exit_to_user_mode+0x5/0x30 ? asm_exc_int3+0x35/0x40
 Fixing this by disabling preemption in bpf_perf_event_output. (CVE-2023-54303)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 17872.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-113.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 451504

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.13

Vendor

Vendor Severity: LOW

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-2023-54303

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: 9/7/2023

Reference Information

CVE: CVE-2023-54303