CVE-2022-48787 Information

Description

In the Linux kernel the following vulnerability has been resolved:

iwlwifi: fix use-after-free

If no firmware was present at all (or presumably all of the firmware files failed to parse) we end up unbinding by calling device_release_driver() which calls remove() which then in iwlwifi calls iwl_drv_stop() freeing the ‘drv’ struct. However the new code I added will still erroneously access it after it was freed.

Set ‘failure=false’ in this case to avoid the access all data was already freed anyway.

Reference

https://git.kernel.org/stable/c/d3b98fe36f8a06ce654049540773256ab59cb53d https://git.kernel.org/stable/c/7d6475179b85a83186ccce59cdc359d4f07d0bcb https://git.kernel.org/stable/c/494de920d98f125b099f27a2d274850750aff957 https://git.kernel.org/stable/c/008508c16af0087cda0394e1ac6f0493b01b6063 https://git.kernel.org/stable/c/ddd46059f7d99119b62d44c519df7a79f2e6a515 https://git.kernel.org/stable/c/9958b9cbb22145295ee1ffaea0904c383da2c05d https://git.kernel.org/stable/c/bea2662e7818e15d7607d17d57912ac984275d94