What’s Vulnerable › Vulnerabilities

CVE-2026-46030: EDAC/versalnet: Fix device_node leak in mc_probe()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/versalnet: Fix device_node leak in mc_probe() of_parse_phandle() returns a device_node reference that must be released with of_node_put(). The original code never freed r5_core_node on any exit path, causing a memory leak. Fix this by using the automatic cleanup attribute __free(device_node) which ensures of_node_put() is called when the variable goes out of scope.

Affected products

• Linux kernel: from 6.18 before 6.18.27; from 6.19 before 7.0.4 — fixed in 6.18.27, 7.0.4

How to fix

Upgrade to a fixed version: Linux kernel 6.18.27, 7.0.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/17e136993b2b5111d1ee1c57bbd188ae0bb0e128
• https://git.kernel.org/stable/c/5c709b376460ff322580c41600e31c02f7cc0307
• https://git.kernel.org/stable/c/b6e61356ad24987be40bf25369d22dd8dd00a513

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