CVE-2025-68345
Unknown Unknown - Not Provided
NULL Pointer Dereference in Linux ALSA cs35l41 Driver Causes Crash

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi() The acpi_get_first_physical_node() function can return NULL, in which case the get_device() function also returns NULL, but this value is then dereferenced without checking,so add a check to prevent a crash. Found by Linux Verification Center (linuxtesting.org) with SVACE.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68345
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability occurs in the Linux kernel's ALSA hda driver for the cs35l41 device. The function acpi_get_first_physical_node() can return NULL, and subsequently get_device() also returns NULL. However, the code dereferences this NULL pointer without checking, which can cause a crash. The fix adds a check to prevent dereferencing a NULL pointer.

Impact Analysis

This vulnerability can cause the Linux kernel to crash due to a NULL pointer dereference, potentially leading to a denial of service on affected systems.

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