CVE-2025-38299

System crash via null codec name dereference

Published Jul 10, 2025 · Updated Aug 3, 2026

A NULL pointer dereference in the Linux mt8195 ASoC driver allows local users to crash affected systems during device probe. ETDM2_IN_BE and ETDM1_OUT_BE use empty component definitions, leaving codec dai_name null when the probe compares it as a string. The condition requires MediaTek mt8195 hardware and a device tree without codec assignments for those links; the resulting kernel Oops interrupts system availability.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A NULL pointer dereference in the Linux mt8195 ASoC driver allows local users to crash affected systems during device probe. ETDM2_IN_BE and ETDM1_OUT_BE use empty component definitions, leaving codec dai_name null when the probe compares it as a string. The condition requires MediaTek mt8195 hardware and a device tree without codec assignments for those links; the resulting kernel Oops interrupts system availability.

The record

CVE
CVE-2025-38299
Published
Jul 10, 2025
Updated
Aug 3, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.8
  2. Affected versionversion=81051a495a9a23c0339d2ae1aa6e4477ed7268c8 <45bd023c7a4ec12059912a631a74723746145e7e
  3. Affected versionversion=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <183e7329d41d7a8e298f48b6b0eb81102a8654de
  4. Affected versionversion=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <7af317f7faaab09d5a78f24605057d11f5955115
  5. Affected versionversion=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <87dbfe2b392df9621f6e522e5fa6fb8849ca92ab

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=81051a495a9a23c0339d2ae1aa6e4477ed7268c8 <45bd023c7a4ec12059912a631a74723746145e7e; version=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <183e7329d41d7a8e298f48b6b0eb81102a8654de; version=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <7af317f7faaab09d5a78f24605057d11f5955115; version=e70b8dd26711704b1ff1f1b4eb3d048ba69e29da <87dbfe2b392df9621f6e522e5fa6fb8849ca92ab

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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