CVE-2026-80572
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-08-26
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
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.
Affected Software (9)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < fe2785d5513b3254368a1f0831515fc59ab0d40d |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < b4d74810aad9b29c313b4d7880c84aceb5abe488 |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < 84b205297fa15f97510342221d8c9a0119711478 |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < 28d984a66b9e14be74986167b6ad40b5e0daf19a |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < ee944a706a18322b4a2599eebe8040a2994e928f |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < 8dbfd8e32a13e116790780ed0be82b5a05eb9916 |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < 2e509ef60ee41a2da0deb062c262bb530143fb37 |
| Linux | Linux | 2d5f5611dd0de52e9a52b56391a7049a52184e72 < c83e79c0842ed29860648bcce5022ef0ba5001c6 |
| Linux | Linux | 4.6 |