What’s Vulnerable › Vulnerabilities

CVE-2022-50042: net: genl: fix error path memory leak in policy dumping

• 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: 2025-06-18 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: genl: fix error path memory leak in policy dumping If construction of the array of policies fails when recording non-first policy we need to unwind. netlink_policy_dump_add_policy() itself also needs fixing as it currently gives up on error without recording the allocated pointer in the pstate pointer.

Affected products

• Linux kernel: from 5.10 before 5.10.138; from 5.11 before 5.15.63; from 5.16 before 5.19.4; 6.0-rc1 — fixed in 5.10.138, 5.15.63, 5.19.4

How to fix

Upgrade to a fixed version: Linux kernel 5.10.138, 5.15.63, 5.19.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/249801360db3dec4f73768c502192020bfddeacc
• https://git.kernel.org/stable/c/26b6acd365823e99e46be3b27500f5dc235dda5e
• https://git.kernel.org/stable/c/83411c9f05d5a8b637293b3389eca3d378197c04
• https://git.kernel.org/stable/c/b0672895d8be5d19d4b05ac83f807026fc791037

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