CVE-2025-37972 Information

Description

In the Linux kernel the following vulnerability has been resolved:

Input: mtk-pmic-keys - fix possible null pointer dereference

In mtk_pmic_keys_probe the regs parameter is only set if the button is parsed in the device tree. However on hardware where the button is left floating that node will most likely be removed not to enable that input. In that case the code will try to dereference a null pointer.

Let’s use the regs struct instead as it is defined for all supported platforms. Note that it is ok setting the key reg even if that latter is disabled as the interrupt won’t be enabled anyway.

Reference

https://git.kernel.org/stable/c/09429ddb5a91e9e8f72cd18c012ec4171c2f85ec https://git.kernel.org/stable/c/11cdb506d0fbf5ac05bf55f5afcb3a215c316490 https://git.kernel.org/stable/c/334d74a798463ceec02a41eb0e2354aaac0d6249 https://git.kernel.org/stable/c/619c05fb176c272ac6cecf723446b39723ee6d97 https://git.kernel.org/stable/c/90fa6015ff83ef1c373cc61b7c924ab2bcbe1801