CVE-2022-49435 Information

Description

In the Linux kernel the following vulnerability has been resolved:

mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe()

It will cause null-ptr-deref when using ‘res’ if platform_get_resource() returns NULL so move using ‘res’ after devm_ioremap_resource() that will check it to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.

Reference

https://git.kernel.org/stable/c/2d00158a06efe6bbcd020108634ea0f2ed8b32f7 https://git.kernel.org/stable/c/311242c7703df0da14c206260b7e855f69cb0264 https://git.kernel.org/stable/c/49c1e32e7b3f301642a60448700ec531df981269 https://git.kernel.org/stable/c/5289795824b77489803b0802cd9edc13824a2d0b https://git.kernel.org/stable/c/579944b9f38727d9ff570b58f83bc424e8af8398 https://git.kernel.org/stable/c/a1d4941d9a24999f680799f9bbde7f57351ca637