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Echo: linux: security update to 6.9.7-1

medium Tenable Cloud Security Plugin ID 463493

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: io_uring/io-wq: Use set_bit() and
 test_bit() at worker->flags Utilize set_bit() and test_bit() on worker->flags within io_uring/io-wq to
 address potential data races. The structure io_worker->flags may be accessed through various data paths,
 leading to concurrency issues. When KCSAN is enabled, it reveals data races occurring in
 io_worker_handle_work and io_wq_activate_free_worker functions. BUG: KCSAN: data-race in
 io_worker_handle_work / io_wq_activate_free_worker write to 0xffff8885c4246404 of 4 bytes by task 49071 on
 cpu 28: io_worker_handle_work (io_uring/io-wq.c:434 io_uring/io-wq.c:569) io_wq_worker (io_uring/io-
 wq.c:?) <snip> read to 0xffff8885c4246404 of 4 bytes by task 49024 on cpu 5: io_wq_activate_free_worker
 (io_uring/io-wq.c:? io_uring/io-wq.c:285) io_wq_enqueue (io_uring/io-wq.c:947) io_queue_iowq
 (io_uring/io_uring.c:524) io_req_task_submit (io_uring/io_uring.c:1511) io_handle_tw_list
 (io_uring/io_uring.c:1198) <snip> Line numbers against commit 18daea77cca6 ("Merge tag 'for-linus' of
 git://git.kernel.org/pub/scm/virt/kvm/kvm"). These races involve writes and reads to the same memory
 location by different tasks running on different CPUs. To mitigate this, refactor the code to use atomic
 operations such as set_bit(), test_bit(), and clear_bit() instead of basic "and" and "or" operations. This
 ensures thread-safe manipulation of worker flags. Also, move `create_index` to avoid holes in the
 structure. (CVE-2024-39508)

Solution

Update the linux library and its related packages to version 6.9.7-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-39508

Plugin Details

Severity: Medium

ID: 463493

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.13

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2024-39508

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/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

Patch Publication Date: 9/15/2025

Vulnerability Publication Date: 7/12/2024

Reference Information

CVE: CVE-2024-39508