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Echo: linux: security update to 6.1.153-1

high Tenable Self-Hosted Container Security Plugin ID 464504

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: comedi: Make insn_rw_emulate_bits() do
 insn->n samples The `insn_rw_emulate_bits()` function is used as a default handler for `INSN_READ`
 instructions for subdevices that have a handler for `INSN_BITS` but not for `INSN_READ`. Similarly, it is
 used as a default handler for `INSN_WRITE` instructions for subdevices that have a handler for `INSN_BITS`
 but not for `INSN_WRITE`. It works by emulating the `INSN_READ` or `INSN_WRITE` instruction handling with
 a constructed `INSN_BITS` instruction. However, `INSN_READ` and `INSN_WRITE` instructions are supposed to
 be able read or write multiple samples, indicated by the `insn->n` value, but `insn_rw_emulate_bits()`
 currently only handles a single sample. For `INSN_READ`, the comedi core will copy `insn->n` samples back
 to user-space. (That triggered KASAN kernel-infoleak errors when `insn->n` was greater than 1, but that is
 being fixed more generally elsewhere in the comedi core.) Make `insn_rw_emulate_bits()` either handle
 `insn->n` samples, or return an error, to conform to the general expectation for `INSN_READ` and
 `INSN_WRITE` handlers. (CVE-2025-39686)

Solution

Update the linux library and its related packages to version 6.1.153-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-39686

Plugin Details

Severity: High

ID: 464504

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.46

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-2025-39686

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: 9/15/2025

Vulnerability Publication Date: 9/5/2025

Reference Information

CVE: CVE-2025-39686