In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: pcm512x: fix null-ptr dereference in pcm512x_overclock_xxx_put()… (CVE-2026-64107)
A null pointer dereference vulnerability in the Linux kernel's pcm512x codec driver has been fixed. The issue occurs because pcm512x_overclock_xxx_put() is incorrectly defined as a general mixer kcontrol rather than a DAPM kcontrol, leading to improper access of snd_soc_dapm_context via snd_soc_dapm_kcontrol_to_dapm(). This results in a NULL pointer dereference. The fix involves modifying the code to use snd_soc_component_to_dapm() instead.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel affects the pcm512x codec driver where the function pcm512x_overclock_xxx_put() is defined as a general mixer kcontrol instead of a DAPM kcontrol. This causes the code to access snd_soc_dapm_context incorrectly through snd_soc_dapm_kcontrol_to_dapm(), leading to a NULL pointer dereference. The issue is resolved by changing the code to use snd_soc_component_to_dapm(), preventing the NULL pointer dereference.
Potential Impact
This vulnerability causes a NULL pointer dereference in the pcm512x codec driver, which can lead to a kernel crash or denial of service. There is no indication of code execution or privilege escalation. No known exploits are reported in the wild.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this vulnerability by correcting the control type and pointer access method. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the official Linux kernel advisories or vendor updates for the specific patch and remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: pcm512x: fix null-ptr dereference in pcm512x_overclock_xxx_put()… (CVE-2026-64107)
Description
A null pointer dereference vulnerability in the Linux kernel's pcm512x codec driver has been fixed. The issue occurs because pcm512x_overclock_xxx_put() is incorrectly defined as a general mixer kcontrol rather than a DAPM kcontrol, leading to improper access of snd_soc_dapm_context via snd_soc_dapm_kcontrol_to_dapm(). This results in a NULL pointer dereference. The fix involves modifying the code to use snd_soc_component_to_dapm() instead.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel affects the pcm512x codec driver where the function pcm512x_overclock_xxx_put() is defined as a general mixer kcontrol instead of a DAPM kcontrol. This causes the code to access snd_soc_dapm_context incorrectly through snd_soc_dapm_kcontrol_to_dapm(), leading to a NULL pointer dereference. The issue is resolved by changing the code to use snd_soc_component_to_dapm(), preventing the NULL pointer dereference.
Potential Impact
This vulnerability causes a NULL pointer dereference in the pcm512x codec driver, which can lead to a kernel crash or denial of service. There is no indication of code execution or privilege escalation. No known exploits are reported in the wild.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this vulnerability by correcting the control type and pointer access method. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the provided data; check the official Linux kernel advisories or vendor updates for the specific patch and remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f9hw-35v5-6x52
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64107"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27a92a4a8d598912b884
Added to database: 07/19/2026, 19:38:17 UTC
Last enriched: 07/19/2026, 19:48:29 UTC
Last updated: 07/20/2026, 18:54:13 UTC
Views: 13
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