CVE-2025-39959 ASoC: amd: acp: Fix incorrect retrival of acp_chip_info

What is CVE-2025-39959?

CVE-2025-39959 is a medium-severity vulnerability in Linux kernel, published on 9 Oct 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:

ASoC: amd: acp: Fix incorrect retrival of acp_chip_info

Use dev_get_drvdata(dev->parent) instead of dev_get_platdata(dev) to correctly obtain acp_chip_info members in the acp I2S driver. Previously, some members were not updated properly due to incorrect data access, which could potentially lead to null pointer dereferences.

This issue was missed in the earlier commit ("ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot"), which only addressed set_tdm_slot(). This change ensures that all relevant functions correctly retrieve acp_chip_info, preventing further null pointer dereference issues.

Weakness: CWE-476

Which versions are affected by CVE-2025-39959?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2025-39959?

Apply the vendor's patch.

Is CVE-2025-39959 being exploited?

There is no known exploitation of CVE-2025-39959 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2025-39959, DEBIAN-CVE-2025-39959, GHSA-9p48-47pw-5x95, UBUNTU-CVE-2025-39959.