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Echo: linux: security update to 6.1.176-1

high Tenable Cloud Security Plugin ID 460126

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: misc: fastrpc: fix use-after-free race
 in fastrpc_map_create fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller
 fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A
 concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-
 after-free on the freed slab object. Restore the take_ref parameter to fastrpc_map_lookup so the reference
 is acquired atomically under fl->lock before the pointer is exposed to the caller. (CVE-2026-53160)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53160

Plugin Details

Severity: High

ID: 460126

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

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-2026-53160

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: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-53160