CVE-2026-53350 is a vulnerability in Linux Kernel
Published on July 1, 2026
ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
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.
Products Associated with CVE-2026-53350
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Affected Versions
Linux:- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 is affected.
- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 10def23b67b42679d5b1a356e1a6f3498bd188c3 is affected.
- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 2f1be283aa777d655525d000d16474b7e7d015ea is affected.
- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 12e579b889624ec54a201d98fdff975de556c731 is affected.
- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 is affected.
- Version 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 and below 7d3fb78b550301e43fdc60312aed733069694426 is affected.
- Version 5.16 is affected.
- Before 5.16 is unaffected.
- Version 6.1.176, <= 6.1.* is unaffected.
- Version 6.6.143, <= 6.6.* is unaffected.
- Version 6.12.94, <= 6.12.* is unaffected.
- Version 6.18.36, <= 6.18.* is unaffected.
- Version 7.0.13, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.