CVE-2026-64107

Kernel crash via invalid DAPM context lookup

Published Jul 19, 2026 · Updated Jul 19, 2026

NULL pointer dereference in the Linux kernel 6.19 PCM512x codec driver allows local users to crash the kernel through a mixer control. The pcm512x_overclock_xxx_put handlers treat general mixer controls as DAPM controls and pass them to snd_soc_dapm_kcontrol_to_dapm, producing a NULL context dereference. Reachability requires the PCM512x codec driver and a local low-privileged user able to write an overclocking mixer control; the reported consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel 6.19 PCM512x codec driver allows local users to crash the kernel through a mixer control. The pcm512x_overclock_xxx_put handlers treat general mixer controls as DAPM controls and pass them to snd_soc_dapm_kcontrol_to_dapm, producing a NULL context dereference. Reachability requires the PCM512x codec driver and a local low-privileged user able to write an overclocking mixer control; the reported consequence is a kernel crash.

The record

CVE
CVE-2026-64107
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 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=02dbbb7e982a6873f81e69e4fef59a42decb7b1a <09e8f9a9aa19aa8c1b0cc7a0ebc68f6ecf86a660
  2. Affected versionversion=02dbbb7e982a6873f81e69e4fef59a42decb7b1a <285159ca199cbbe424223d4b14db227b279b5767
  3. Affected versionversion=6.19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=02dbbb7e982a6873f81e69e4fef59a42decb7b1a <09e8f9a9aa19aa8c1b0cc7a0ebc68f6ecf86a660; version=02dbbb7e982a6873f81e69e4fef59a42decb7b1a <285159ca199cbbe424223d4b14db227b279b5767; version=6.19

Published CVSS scores

5.5NIST NVDCVSS: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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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