# CVE-2024-58034: memory: tegra20-emc: fix an OF node reference bug in tegra\_emc\_find\_node\_by\_ram\_code()

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-02-27 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 5.0

## 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 "emc-tables" node is always device's child node with the property "nvidia,use-ram-code", and the "lpddr2" node is a child of the "emc-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]

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/c3def10c610ae046aaa61d00528e7bd15e4ad8d3
- https://git.kernel.org/stable/c/e9d07e91de140679eeaf275f47ad154467cb9e05
- https://git.kernel.org/stable/c/c144423cb07e4e227a8572d5742ca2b36ada770d
- https://git.kernel.org/stable/c/3b02273446e23961d910b50cc12528faec649fb2
- https://git.kernel.org/stable/c/755e44538c190c31de9090d8e8821d228fcfd416
- https://git.kernel.org/stable/c/b9784e5cde1f9fb83661a70e580e381ae1264d12

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