Review reviewHigh

CVE-2025-40045

Linux

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd937x: set the comp soundwire port correctly For some reason we endup with setting soundwire port for HPHL_COMP and HPHR_COMP as zero, this can potentially result in a memory corruption due to accessing and setting -1 th element of port_map array.

CVSS
7.8
EPSS
0.15%
4.91% percentile
CISA KEV
Not listed
Published
2025.10.28
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd937x: set the comp soundwire port correctly For some reason we endup with setting soundwire port for HPHL_COMP and HPHR_COMP as zero, this can potentially result in a memory corruption due to accessing and setting -1 th element of port_map array.

Affected product and versions

Product
Linux
Affected versions
>= 82be8c62a38c6a44e64ecb29d7a9b5cb35c6cad4 < abcd537aae3b84c6d10ad147e99a204bcb56b234, >= 82be8c62a38c6a44e64ecb29d7a9b5cb35c6cad4 < 1a1ca38392e7e896075afc8905ddaea525ed30f7, >= 82be8c62a38c6a44e64ecb29d7a9b5cb35c6cad4 < 66a940b1bf48a7095162688332d725ba160154eb, >= 6.11
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2025-40045 — Linux | SECUFOCUS NOW