CVE-2025-22097 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/vkms: Fix use after free and double free on init error

If the driver initialization fails the vkms_exit() function might access an uninitialized or freed default_config pointer and it might double free it.

Fix both possible errors by initializing default_config only when the driver initialization succeeded.

Reference

https://git.kernel.org/stable/c/1f68f1cf09d06061eb549726ff8339e064eddebd https://git.kernel.org/stable/c/49a69f67f53518bdd9b7eeebf019a2da6cc0e954 https://git.kernel.org/stable/c/561fc0c5cf41f646f3e9e61784cbc0fc832fb936 https://git.kernel.org/stable/c/79d138d137b80eeb0a83244d1cff29e64cf91067 https://git.kernel.org/stable/c/b8a18bb53e06d6d3c1fd03d12533d6e333ba8853 https://git.kernel.org/stable/c/d5eb8e347905ab17788a7903fa1d3d06747355f5 https://git.kernel.org/stable/c/ed15511a773df86205bda66c37193569575ae828