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Echo: linux: security update to 6.1.147-1

medium Tenable Self-Hosted Container Security Plugin ID 457745

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: Fix use of uninitialized data
 in insn_rw_emulate_bits() For Comedi `INSN_READ` and `INSN_WRITE` instructions on "digital" subdevices
 (subdevice types `COMEDI_SUBD_DI`, `COMEDI_SUBD_DO`, and `COMEDI_SUBD_DIO`), it is common for the
 subdevice driver not to have `insn_read` and `insn_write` handler functions, but to have an `insn_bits`
 handler function for handling Comedi `INSN_BITS` instructions. In that case, the subdevice's `insn_read`
 and/or `insn_write` function handler pointers are set to point to the `insn_rw_emulate_bits()` function by
 `__comedi_device_postconfig()`. For `INSN_WRITE`, `insn_rw_emulate_bits()` currently assumes that the
 supplied `data[0]` value is a valid copy from user memory. It will at least exist because
 `do_insnlist_ioctl()` and `do_insn_ioctl()` in "comedi_fops.c" ensure at lease `MIN_SAMPLES` (16) elements
 are allocated. However, if `insn->n` is 0 (which is allowable for `INSN_READ` and `INSN_WRITE`
 instructions, then `data[0]` may contain uninitialized data, and certainly contains invalid data, possibly
 from a different instruction in the array of instructions handled by `do_insnlist_ioctl()`. This will
 result in an incorrect value being written to the digital output channel (or to the digital input/output
 channel if configured as an output), and may be reflected in the internal saved state of the channel. Fix
 it by returning 0 early if `insn->n` is 0, before reaching the code that accesses `data[0]`. Previously,
 the function always returned 1 on success, but it is supposed to be the number of data samples actually
 read or written up to `insn->n`, which is 0 in this case. (CVE-2025-38480)

Solution

Update the linux library and its related packages to version 6.1.147-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-38480

Plugin Details

Severity: Medium

ID: 457745

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.34

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-2025-38480

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: 9/15/2025

Vulnerability Publication Date: 9/15/2025

Reference Information

CVE: CVE-2025-38480