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Echo: linux: security update to 6.5.13-1

medium Tenable Self-Hosted Container Security Plugin ID 463799

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: cxl/port: Fix delete_endpoint() vs
 parent unregistration race The CXL subsystem, at cxl_mem ->probe() time, establishes a lineage of ports
 (struct cxl_port objects) between an endpoint and the root of a CXL topology. Each port including the
 endpoint port is attached to the cxl_port driver. Given that setup, it follows that when either any port
 in that lineage goes through a cxl_port ->remove() event, or the memdev goes through a cxl_mem ->remove()
 event. The hierarchy below the removed port, or the entire hierarchy if the memdev is removed needs to
 come down. The delete_endpoint() callback is careful to check whether it is being called to tear down the
 hierarchy, or if it is only being called to teardown the memdev because an ancestor port is going through
 ->remove(). That care needs to take the device_lock() of the endpoint's parent. Which requires 2 bugs to
 be fixed: 1/ A reference on the parent is needed to prevent use-after-free scenarios like this signature:
 BUG: spinlock bad magic on CPU#0, kworker/u56:0/11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
 BIOS edk2-20230524-3.fc38 05/24/2023 Workqueue: cxl_port detach_memdev [cxl_core] RIP:
 0010:spin_bug+0x65/0xa0 Call Trace: do_raw_spin_lock+0x69/0xa0 __mutex_lock+0x695/0xb80
 delete_endpoint+0xad/0x150 [cxl_core] devres_release_all+0xb8/0x110 device_unbind_cleanup+0xe/0x70
 device_release_driver_internal+0x1d2/0x210 detach_memdev+0x15/0x20 [cxl_core] process_one_work+0x1e3/0x4c0
 worker_thread+0x1dd/0x3d0 2/ In the case of RCH topologies, the parent device that needs to be locked is
 not always @port->dev as returned by cxl_mem_find_port(), use endpoint->dev.parent instead.
 (CVE-2023-52771)

Solution

Update the linux library and its related packages to version 6.5.13-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-52771

Plugin Details

Severity: Medium

ID: 463799

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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-2023-52771

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: 5/21/2024

Reference Information

CVE: CVE-2023-52771