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CVE-2026-80737

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: synchronize DMA teardown dmaengine_terminate_all() does not wait for a running callback, so the TX callback…

Published Sep 3, 2026EPSS 0.13%

Overview

CVE-2026-80737 is a high-severity vulnerability. It was published on September 3, 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:

serial: amba-pl011: synchronize DMA teardown

dmaengine_terminate_all() does not wait for a running callback, so the TX

callback can still touch the TX buffer after it is freed. The RX poll

timer reads the RX buffers without the port lock.

Switch to dmaengine_terminate_sync() and delete the RX timer before

freeing the buffers.

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/440915499231e9db1c361aa45bb702e8fd3b4a32Refgit.kernel.org/stable/c/44bd0ecc3444882d08ecfbc2b2418d2f463d3186Refgit.kernel.org/stable/c/5974cb66681eac367107b05924744d7e3b49d41cRefgit.kernel.org/stable/c/9f6989e477f03a4721d34bb4b09b17accd40283eRefgit.kernel.org/stable/c/a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76eRefgit.kernel.org/stable/c/c8c8e895f65fbf71ea6224e27cf8dab91b776e0dRefgit.kernel.org/stable/c/f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03Refgit.kernel.org/stable/c/fdfb46c387241b4eddd36d746793764413285913

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80737?

CVE-2026-80737 is a high-severity vulnerability. It was published on September 3, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-80737?

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-2026-80737?

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-2026-80737?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80737 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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