CVE-2026-46228 Details
Description
In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix devres lifetime USB drivers bind to USB interfaces and any device managed resources should have their lifetime tied to the interface rather than parent USB device. This avoids issues like memory leaks when drivers are unbound without their devices being physically disconnected (e.g. on probe deferral or configuration changes). Fix the controller and driver data lifetime so that they are released on driver unbind. Note that this also makes sure that the SPI controller is placed correctly under the USB interface in the device tree.
A vulnerability in the Linux kernel's CH341 USB to SPI driver has been addressed. The issue was related to improper management of device resources, which could lead to memory leaks when drivers were unbound without physical disconnection of the devices. This vulnerability affected the USB interface management in the device tree. The problem has been fixed by tying the lifetime of the driver data and SPI controller to the USB interface, ensuring proper resource release when the driver is unbound.
Users can apply the latest patch available in the Linux kernel stable tree to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/108a64b27a52f781c4f3751641e3dd65c7dd2fb5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4422fc2411cbbdf5104a914e0596bb483faea254 | kernel.org | Patch |
| https://git.kernel.org/stable/c/abe572f630bc1f0e77041012ab075869036ede4f | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.11, < 6.18.32 >= 6.19, < 7.0.9 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 10, 2026 | Initial Analysis | [email protected] |
| May 28, 2026 | New CVE Received | kernel.org |