CVE-2026-80572Input: byd - synchronize timer deletion before freeing private data
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before 84b205297fa15f97510342221d8c9a0119711478; from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before 28d984a66b9e14be74986167b6ad40b5e0daf19a; from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before ee944a706a18322b4a2599eebe8040a2994e928f; from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before 8dbfd8e32a13e116790780ed0be82b5a05eb9916; from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before 2e509ef60ee41a2da0deb062c262bb530143fb37; from 2d5f5611dd0de52e9a52b56391a7049a52184e72 before c83e79c0842ed29860648bcce5022ef0ba5001c6 | CNA record |
References
- https://git.kernel.org/stable/c/84b205297fa15f97510342221d8c9a0119711478
- https://git.kernel.org/stable/c/28d984a66b9e14be74986167b6ad40b5e0daf19a
- https://git.kernel.org/stable/c/ee944a706a18322b4a2599eebe8040a2994e928f
- https://git.kernel.org/stable/c/8dbfd8e32a13e116790780ed0be82b5a05eb9916
- https://git.kernel.org/stable/c/2e509ef60ee41a2da0deb062c262bb530143fb37
- https://git.kernel.org/stable/c/c83e79c0842ed29860648bcce5022ef0ba5001c6
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.