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CVE-2026-98501

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: HID: alps: fix use-after-free on input2 registration failure alps_input_configured() stores data->input2 before calling input_r…

Published Oct 18, 2026EPSS 0.26%

Overview

CVE-2026-98501 is a high-severity vulnerability. It was published on October 18, 2026 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. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

HID: alps: fix use-after-free on input2 registration failure

alps_input_configured() stores data->input2 before calling

input_register_device(). If registration fails, input_free_device()

frees the input device but data->input2 still points to the freed memory.

alps_input_configured() calls hid_hw_open() before allocating input2, so

URBs are already active and raw_event can fire during the failure window.

A U1_SP_ABSOLUTE_REPORT_ID report arriving then causes u1_raw_event()

to dereference the freed data->input2 -> use-after-free.

Fix by only storing input2 into drvdata after successful registration

and adding a NULL guard in the raw_event path.

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/2e55d76e6e8a756f6d87c241de975599f82b02faRefgit.kernel.org/stable/c/443f6b93442b10b972a16f57ceaaea75b77892b6Refgit.kernel.org/stable/c/47e5e177e9e4e10da6f2759d5ce8d049e33efdc4Refgit.kernel.org/stable/c/5a8ad63158165bacd6a1d7420e0fe5364c913b06Refgit.kernel.org/stable/c/64f824dccfd316fd3db8ea1cc4e8a76ad6a02740Refgit.kernel.org/stable/c/925da1d2a24787f24872de13a4680437c54de179Refgit.kernel.org/stable/c/d3aba3442798ce4a4c8ce3104d7b286d61e605f9Refgit.kernel.org/stable/c/ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-98501?

CVE-2026-98501 is a high-severity vulnerability. It was published on October 18, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-98501?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-98501?

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-2026-98501?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-98501 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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