CVE-2024-58034 Information

Description

In the Linux kernel the following vulnerability has been resolved:

memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()

As of_find_node_by_name() release the reference of the argument device node tegra_emc_find_node_by_ram_code() releases some device nodes while still in use resulting in possible UAFs. According to the bindings and the in-tree DTS files the mc-tables\ node is always device’s child node with the property vidiause-ram-code\ and the \lpddr2\ node is a child of the mc-tables\ node. Thus utilize the for_each_child_of_node() macro and of_get_child_by_name() instead of of_find_node_by_name() to simplify the code.

This bug was found by an experimental verification tool that I am developing.

[krzysztof: applied v1 adjust the commit msg to incorporate v2 parts]

Reference

https://git.kernel.org/stable/c/3b02273446e23961d910b50cc12528faec649fb2 https://git.kernel.org/stable/c/755e44538c190c31de9090d8e8821d228fcfd416 https://git.kernel.org/stable/c/b9784e5cde1f9fb83661a70e580e381ae1264d12 https://git.kernel.org/stable/c/c144423cb07e4e227a8572d5742ca2b36ada770d https://git.kernel.org/stable/c/e9d07e91de140679eeaf275f47ad154467cb9e05