CVE-2023-53596

In the Linux kernel, the following vulnerability has been resolved: drivers: base: Free devm resources when unregistering a device In the current code, devres_release_all() only gets called if the device has a bus and has been probed. This leads to issues when using bus-less or driver-less devices where the device might never get freed if a managed resource holds a reference to the device. This is happening in the DRM framework for example. We should thus call devres_release_all() in the device_del() function to make sure that the device-managed actions are properly executed when the device is unregistered, even if it has neither a bus nor a driver. This is effectively the same change than commit 2f8d16a996da ("devres: release resources on device_del()") that got reverted by commit a525a3ddeaca ("driver core: free devres in device_release") over memory leaks concerns. This patch effectively combines the two commits mentioned above to release the resources both on device_del() and device_release() and get the best of both worlds.

The following products are affected by CVE-2023-53596 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-53596.

URL	Resource
https://git.kernel.org/stable/c/297992e5c63528e603666e36081836204fc36ec9
https://git.kernel.org/stable/c/3bcc4c2a096e8342c8c719e595ce15de212694dd
https://git.kernel.org/stable/c/699fb50d99039a50e7494de644f96c889279aca3
https://git.kernel.org/stable/c/c8c426fae26086a0ca8ab6cc6da2de79810ec038
https://lore.kernel.org/linux-cve-announce/2025100429-CVE-2023-53596-dbfb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-53596
https://www.cve.org/CVERecord?id=CVE-2023-53596