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Echo: linux: security update to 6.1.176-1

medium Tenable Cloud Security Plugin ID 463064

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: rxrpc: Fix call removal to use RCU
 safe deletion Fix rxrpc call removal from the rxnet->calls list to use list_del_rcu() rather than
 list_del_init() to prevent stuffing up reading /proc/net/rxrpc/calls from potentially getting into an
 infinite loop. This, however, means that list_empty() no longer works on an entry that's been deleted from
 the list, making it harder to detect prior deletion. Fix this by: Firstly, make rxrpc_destroy_all_calls()
 only dump the first ten calls that are unexpectedly still on the list. Limiting the number of steps means
 there's no need to call cond_resched() or to remove calls from the list here, thereby eliminating the need
 for rxrpc_put_call() to check for that. rxrpc_put_call() can then be fixed to unconditionally delete the
 call from the list as it is the only place that the deletion occurs. (CVE-2026-31642)

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-2026-31642

Plugin Details

Severity: Medium

ID: 463064

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-31642

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/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: 5/1/2026

Vulnerability Publication Date: 4/24/2026

Reference Information

CVE: CVE-2026-31642