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CVE-2022-50490

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htab_lock_bucket() to userspace In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns…

Published Oct 4, 2025CWE-125EPSS 0.16%

Overview

CVE-2022-50490 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, 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:

bpf: Propagate error from htab_lock_bucket() to userspace

In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns

-EBUSY, it will go to next bucket. Going to next bucket may not only

skip the elements in current bucket silently, but also incur

out-of-bound memory access or expose kernel memory to userspace if

current bucket_cnt is greater than bucket_size or zero.

Fixing it by stopping batch operation and returning -EBUSY when

htab_lock_bucket() fails, and the application can retry or skip the busy

batch as needed.

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/0e13425104903970a5ede853082d3bbb4edec6f3Refgit.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334dRefgit.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280Refgit.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50490?

CVE-2022-50490 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2022-50490?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2022-50490?

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-2022-50490?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50490 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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