CVE-2022-49508 Information

Description

In the Linux kernel the following vulnerability has been resolved:

HID: elan: Fix potential double free in elan_input_configured

‘input’ is a managed resource allocated with devm_input_allocate_device() so there is no need to call input_free_device() explicitly or there will be a double free.

According to the doc of devm_input_allocate_device(): Managed input devices do not need to be explicitly unregistered or freed as it will be done automatically when owner device unbinds from its driver (or binding fails).

Reference

https://git.kernel.org/stable/c/1af20714fedad238362571620be0bd690ded05b6 https://git.kernel.org/stable/c/24f9dfdaece9bd75bb8dbfdba83eddeefdf7dc47 https://git.kernel.org/stable/c/5291451851feeb66fd4bf0826710f482f3b1ab38 https://git.kernel.org/stable/c/6d0726725c7c560495f5ff364862a2cefea542e3 https://git.kernel.org/stable/c/8bb1716507ebf12d50bbf181764481de3b6bc7fd https://git.kernel.org/stable/c/c92ec22a991778a096342cf1a917ae36c5c86a90 https://git.kernel.org/stable/c/f1d4f19a796551edc6679a681ea1756b8c578c08