Vulnerability Database

374,078

Total vulnerabilities in the database

CVE-2026-53350 — linux / linux_kernel

NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved:

ASoC: wm_adsp: Fix NULL dereference when removing firmware controls

In wm_adsp_control_remove() check that the priv pointer is not NULL before attempting to cleanup what it points to.

When cs_dsp creates a control it calls wm_adsp_control_add_cb() so that wm_adsp can create its own private control data. There are two cases where private data is not created:

  1. The control is a SYSTEM control, so an ALSA control is not created.

  2. The codec driver has registered a control_add() callback that hides the control, so wm_adsp_control_add() is not called.

When cs_dsp_remove destroys its control list it calls wm_adsp_control_remove() for each control. But wm_adsp_control_remove() was attempting to cleanup the private data pointed to by cs_ctl->priv without checking the pointer for NULL.

  • Published: Jul 1, 2026
  • Updated: Jul 23, 2026
  • CVE: CVE-2026-53350
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWEs:

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CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

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