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CVE-2026-46308

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy() In scpsys_get_bus_protection_legacy(), of_find_nod…

Published Jun 8, 2026CWE-416EPSS 0.17%

Overview

CVE-2026-46308 is a high-severity vulnerability. It was published on June 8, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

pmdomain: mediatek: fix use-after-free in scpsys_get_bus_protection_legacy()

In scpsys_get_bus_protection_legacy(), of_find_node_with_property()

returns a device node with its reference count incremented. The function

then calls of_node_put(node) before checking whether

syscon_regmap_lookup_by_phandle() returns an error. If an error occurs,

dev_err_probe() dereferences the node pointer to print diagnostic

information, but the node memory may have already been freed due to the

earlier of_node_put(), leading to a use-after-free vulnerability.

Fix this by moving the of_node_put() call after the error check, ensuring

the node is still valid when accessed in the error path.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/38d8410021b55d226847b2ac8d189d89fe5a8866Refgit.kernel.org/stable/c/cb27e43c0511e9e1ca8818d231656070b11c18cfRefgit.kernel.org/stable/c/ec1fcddb3117d9452210e838fd37389ee61e10e8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46308?

CVE-2026-46308 is a high-severity vulnerability. It was published on June 8, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-46308?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46308?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46308?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46308 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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