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Echo: linux: security update to 6.1.158-1

high Tenable Self-Hosted Container Security Plugin ID 460445

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: futex: Prevent use-after-free during
 requeue-PI syzbot managed to trigger the following race: T1 T2 futex_wait_requeue_pi() futex_do_wait()
 schedule() futex_requeue() futex_proxy_trylock_atomic() futex_requeue_pi_prepare() requeue_pi_wake_futex()
 futex_requeue_pi_complete() /* preempt */ * timeout/ signal wakes T1 * futex_requeue_pi_wakeup_sync() //
 Q_REQUEUE_PI_LOCKED futex_hash_put() // back to userland, on stack futex_q is garbage /* back */
 wake_up_state(q->task, TASK_NORMAL); In this scenario futex_wait_requeue_pi() is able to leave without
 using futex_q::lock_ptr for synchronization. This can be prevented by reading futex_q::task before
 updating the futex_q::requeue_state. A reference on the task_struct is not needed because
 requeue_pi_wake_futex() is invoked with a spinlock_t held which implies a RCU read section. Even if T1
 terminates immediately after, the task_struct will remain valid during T2's wake_up_state(). A READ_ONCE
 on futex_q::task before futex_requeue_pi_complete() is enough because it ensures that the variable is read
 before the state is updated. Read futex_q::task before updating the requeue state, use it for the
 following wakeup. (CVE-2025-39977)

Solution

Update the linux library and its related packages to version 6.1.158-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-39977

Plugin Details

Severity: High

ID: 460445

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.47

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-2025-39977

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

Patch Publication Date: 10/16/2025

Vulnerability Publication Date: 10/14/2025

Reference Information

CVE: CVE-2025-39977