CVE-2022-49448 Information

Description

In the Linux kernel the following vulnerability has been resolved:

soc: bcm: Check for NULL return of devm_kzalloc()

As the potential failure of allocation devm_kzalloc() may return NULL. Then the ‘pd->pmb’ and the follow lines of code may bring null pointer dereference.

Therefore it is better to check the return value of devm_kzalloc() to avoid this confusion.

Reference

https://git.kernel.org/stable/c/36339ea7bae4943be01c8e9545e46e334591fecd https://git.kernel.org/stable/c/5650e103bfc70156001615861fb8aafb3947da6e https://git.kernel.org/stable/c/b48b98743b568bb219152ba2e15af6ef0d3d8a9b https://git.kernel.org/stable/c/b4bd2aafacce48db26b0a213d849818d940556dd