CVE-2026-80572
What it is
In the Linux kernel, the following vulnerability has been resolved: Input: byd - synchronize timer deletion before freeing private data byd_disconnect() uses timer_delete() before freeing the driver's private data. This does not wait for a running byd_clear_touch() callback, which dereferences the private data and its psmouse pointer. A callback racing with disconnect can therefore access the private data after it has been freed. The timer can also still be re-armed by byd_process_byte() while the disconnect is in progress. Use timer_shutdown_sync() before freeing the private data: it waits for a running callback and turns any later re-arm attempt into a no-op.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Received
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-80572.md and follow it. Check whether this project is affected by CVE-2026-80572. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://git.kernel.org/stable/c/28d984a66b9e14be74986167b6ad40b5e0daf19a
- https://git.kernel.org/stable/c/2e509ef60ee41a2da0deb062c262bb530143fb37
- https://git.kernel.org/stable/c/84b205297fa15f97510342221d8c9a0119711478
- https://git.kernel.org/stable/c/8dbfd8e32a13e116790780ed0be82b5a05eb9916
- https://git.kernel.org/stable/c/b4d74810aad9b29c313b4d7880c84aceb5abe488
- https://git.kernel.org/stable/c/c83e79c0842ed29860648bcce5022ef0ba5001c6
- https://git.kernel.org/stable/c/ee944a706a18322b4a2599eebe8040a2994e928f
- https://git.kernel.org/stable/c/fe2785d5513b3254368a1f0831515fc59ab0d40d