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Medium 5.5Published Jul 1, 2026

CVE-2026-53350ASoC: wm_adsp: Fix NULL dereference when removing firmware controls

Updated under an hour ago ()

Does this affect you?

It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Modified
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3; 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 10def23b67b42679d5b1a356e1a6f3498bd188c3; 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 2f1be283aa777d655525d000d16474b7e7d015ea; 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 12e579b889624ec54a201d98fdff975de556c731; 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7; 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 builds before 7d3fb78b550301e43fdc60312aed733069694426
CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)
all versions
CISA ADP
linux linux_kernel
linux:linux_kernel
from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; 7.1; and 4 more ranges
NVD

References

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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