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Echo: linux: security update to 6.1.170-1

medium Tenable Self-Hosted Container Security Plugin ID 464217

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: drbd: fix "LOGIC BUG" in
 drbd_al_begin_io_nonblock() Even though we check that we "should" be able to do lc_get_cumulative() while
 holding the device->al_lock spinlock, it may still fail, if some other code path decided to do
 lc_try_lock() with bad timing. If that happened, we logged "LOGIC BUG for enr=...", but still did not
 return an error. The rest of the code now assumed that this request has references for the relevant
 activity log extents. The implcations are that during an active resync, mutual exclusivity of resync
 versus application IO is not guaranteed. And a potential crash at this point may not realizs that these
 extents could have been target of in-flight IO and would need to be resynced just in case. Also, once the
 request completes, it will give up activity log references it does not even hold, which will trigger a
 BUG_ON(refcnt == 0) in lc_put(). Fix: Do not crash the kernel for a condition that is harmless during
 normal operation: also catch "e->refcnt == 0", not only "e == NULL" when being noisy about
 "al_complete_io() called on inactive extent %u\n". And do not try to be smart and "guess" whether
 something will work, then be surprised when it does not. Deal with the fact that it may or may not work.
 If it does not, remember a possible "partially in activity log" state (only possible for requests that
 cross extent boundaries), and return an error code from drbd_al_begin_io_nonblock(). A latter call for the
 same request will then resume from where we left off. (CVE-2026-23356)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-23356

Plugin Details

Severity: Medium

ID: 464217

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.62

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-2026-23356

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: 3/25/2026

Reference Information

CVE: CVE-2026-23356