PT-2024-30680 · Linux+6 · Linux Kernel+6
Published
2024-07-04
·
Updated
2025-09-29
·
CVE-2024-43818
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.50
Description
The issue is related to the Advanced Sound Architecture (ASoC) component in the Linux kernel, specifically with the
acpi get first physical node() function, which can return NULL under certain conditions, such as when there is no device, an ACPI table error, or a reference count drop to 0. The existing check only emits an error message but does not perform a return, resulting in a NULL pointer being passed to devm acpi dev add driver gpios(), where it is dereferenced. This error handling has been adjusted by adding an error code return.Recommendations
Update to Linux kernel version 6.6.50 or later to resolve the issue.
As a temporary workaround, consider disabling the
devm acpi dev add driver gpios() function until a patch is available.
Restrict access to the vulnerable acpi get first physical node() function to minimize the risk of exploitation.Exploit
Fix
NULL Pointer Dereference
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu