CVE-2025-68345 ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi()
A NULL pointer dereference in the Linux kernel's CS35L41 audio driver allows local attackers to cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68345?
CVE-2025-68345 is a vulnerability in Linux, published on 24 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2025-68345?
How do I fix CVE-2025-68345?
Apply the vendor's patch.
Is CVE-2025-68345 being exploited?
There is no known exploitation of CVE-2025-68345 in the wild and no public exploit code.
Sources
Also known as AZL-73066, BELL-CVE-2025-68345, DEBIAN-CVE-2025-68345, GHSA-hj88-pj44-5w8c, ROOT-OS-DEBIAN-12-CVE-2025-68345, ROOT-OS-DEBIAN-13-CVE-2025-68345 and 3 more.