CVE-2026-98945 HID: steam: Rearrange teardown sequence
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-98945?
CVE-2026-98945 is a high-severity vulnerability in Linux, published on 23 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
HID: steam: Rearrange teardown sequence
This fixes a narrow window during the teardown sequence where callbacks could still be scheduled during cleanup that would then have a dangling pointer to the now-freed steam struct.
This also puts work canceling for rumble and mode switch in steam_unregister, as that shouldn't persist while the client hdev is open.
Which versions are affected by CVE-2026-98945?
How do I fix CVE-2026-98945?
Upgrade to a fixed version.
Is CVE-2026-98945 being exploited?
There is no known exploitation of CVE-2026-98945 in the wild and no public exploit code.
Sources
Also known as AZL-110744, BELL-CVE-2026-98945, DEBIAN-CVE-2026-98945, GHSA-fhx7-57xw-qfjc, UBUNTU-CVE-2026-98945.