---
title: "CVE-2026-98944: CVE-2026-98944"
description: "In the Linux kernel, the following vulnerability has been resolved: HID: steam: Refactor registration This refactors and simplifies the registration/unregistration flow. Since we now only perform registration when the client isn't opened anymore, the logic for handling that can be removed, and the rest of the function streamlined. We also remove the previous assumption that we have a serial number to show we're registered, replacing it with a single purpose boolean. In a previous refactor the code for unregistering a battery if later registration steps failed was accidentally left out. As a result, a lingering power_supply object could get left over after the steam object was torn down. This is also fixed here."
url: https://panop.io/threat-heartbeat/CVE-2026-98944/
---

# CVE-2026-98944 CVE-2026-98944

In the Linux kernel, the following vulnerability has been resolved: HID: steam: Refactor registration This refactors and simplifies the registration/unregistration flow. Since we now only perform registration when the client isn't opened anymore, the logic for handling that can be removed, and the rest of the function streamlined. We also remove the previous assumption that we have a serial number to show we're registered, replacing it with a single purpose boolean. In a previous refactor the code for unregistering a battery if later registration steps failed was accidentally left out. As a result, a lingering power\_supply object could get left over after the steam object was torn down. This is also fixed here.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.21% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-98944)

## Details

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

23 October 2026

Updated

25 October 2026

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-98944](https://nvd.nist.gov/vuln/detail/CVE-2026-98944)
- [https://git.kernel.org/stable/c/2b15e10aff95c78dbacc4fa32fa90c9098213e03](https://git.kernel.org/stable/c/2b15e10aff95c78dbacc4fa32fa90c9098213e03)
- [https://git.kernel.org/stable/c/3c2f97343d4df2a75747f4c79effa0587509888f](https://git.kernel.org/stable/c/3c2f97343d4df2a75747f4c79effa0587509888f)
- [https://git.kernel.org/stable/c/6f9b740c31ba7e061b2ebb330d9a3d63f1358f29](https://git.kernel.org/stable/c/6f9b740c31ba7e061b2ebb330d9a3d63f1358f29)
- [https://git.kernel.org/stable/c/c06cf54fe99b8c6bcf2017bb076c0e3918608cea](https://git.kernel.org/stable/c/c06cf54fe99b8c6bcf2017bb076c0e3918608cea)
- [https://git.kernel.org/stable/c/cf71a6ee1d4e36b8e65b81c064e2797a10247280](https://git.kernel.org/stable/c/cf71a6ee1d4e36b8e65b81c064e2797a10247280)

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