Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3affected0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 10def23b67b42679d5b1a356e1a6f3498bd188c3affected0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 2f1be283aa777d655525d000d16474b7e7d015eaaffected0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 12e579b889624ec54a201d98fdff975de556c731affected0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7affected0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 to < 7d3fb78b550301e43fdc60312aed733069694426affected
Linux Linux
Default version status: affected
5.16affected0 to < 5.16unaffected6.1.176 to ≤ 6.1.*unaffected6.6.143 to ≤ 6.6.*unaffected6.12.94 to ≤ 6.12.*unaffected6.18.36 to ≤ 6.18.*unaffected7.0.13 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 ↗
- https://git.kernel.org/stable/c/10def23b67b42679d5b1a356e1a6f3498bd188c3 ↗
- https://git.kernel.org/stable/c/2f1be283aa777d655525d000d16474b7e7d015ea ↗
- https://git.kernel.org/stable/c/12e579b889624ec54a201d98fdff975de556c731 ↗
- https://git.kernel.org/stable/c/6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 ↗
- https://git.kernel.org/stable/c/7d3fb78b550301e43fdc60312aed733069694426 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗