What’s Vulnerable › Vulnerabilities

CVE-2022-49113: powerpc/secvar: fix refcount leak in format_show()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/secvar: fix refcount leak in format_show() Refcount leak will happen when format_show returns failure in multiple cases. Unified management of of_node_put can fix this problem.

Affected products

• Linux kernel: before 5.10.111; from 5.11 before 5.15.34; from 5.16 before 5.16.20; from 5.17 before 5.17.3 — fixed in 5.10.111, 5.15.34, 5.16.20, 5.17.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.111, 5.15.34, 5.16.20, 5.17.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/02222bf4f0a27f6eba66d1f597cdb5daadd51829
• https://git.kernel.org/stable/c/2a71e3ecd829a82013cf095c55068c61d991e885
• https://git.kernel.org/stable/c/c105ffb6b9744158e37e9f81f0f38861951d1c1f
• https://git.kernel.org/stable/c/d05e4265d33af60b39606c20c731e3e719bfe3d6
• https://git.kernel.org/stable/c/d601fd24e6964967f115f036a840f4f28488f63f

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