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CVE-2026-90225

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: read llcp_sock->local under the socket lock in getsockopt nfc_llcp_getsockopt() read llcp_sock->local before lock_so…

Published Sep 17, 2026EPSS 0.18%

Overview

CVE-2026-90225 is a high-severity vulnerability. It was published on September 17, 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:

nfc: llcp: read llcp_sock->local under the socket lock in getsockopt

nfc_llcp_getsockopt() read llcp_sock->local before lock_sock(sk) and

then dereferenced the cached pointer inside the locked region.

llcp_sock_bind() assigns and clears llcp_sock->local under the same

socket lock, dropping the last reference on its error path. A

getsockopt() racing an in-flight bind() can observe the pointer, block

on lock_sock(), and then dereference a freed nfc_llcp_local once bind()

has unwound.

Move the llcp_sock->local read and the NULL check inside the

lock_sock(sk) region so bind() cannot mutate or free the pointer between

the load and the use.

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/156e65bd29307f5053835bff60bc1ba342fa010fRefgit.kernel.org/stable/c/2d8ac24565be85bf56580b87bf1b874d35625eb5Refgit.kernel.org/stable/c/36812527052c5bfb1ec6c1e292d67a5bf76b750fRefgit.kernel.org/stable/c/56fd158fef20268f48db6cdfe5d722e930134edaRefgit.kernel.org/stable/c/8ba8cec0586727cc135ca4827921fc7b52946d71Refgit.kernel.org/stable/c/d1b73962675cdc5a58e2707e25b548d8b495fde0Refgit.kernel.org/stable/c/ed5240bab3468988077fe8bf29b935eaecc9ff89Refgit.kernel.org/stable/c/fe65727a4a21b11c18eebae1338482767a897b76

How CyberStrike helps

Frequently asked questions

What is CVE-2026-90225?

CVE-2026-90225 is a high-severity vulnerability. It was published on September 17, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-90225?

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-2026-90225?

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-2026-90225?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90225 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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