CVE-2026-46228

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8846739f52afa07e63395c80227dc544f54bd7b1 < 4422fc2411cbbdf5104a914e0596bb483faea254affected
LinuxLinux8846739f52afa07e63395c80227dc544f54bd7b1 < 108a64b27a52f781c4f3751641e3dd65c7dd2fb5affected
LinuxLinux8846739f52afa07e63395c80227dc544f54bd7b1 < abe572f630bc1f0e77041012ab075869036ede4faffected
LinuxLinux6.11affected
LinuxLinux0 < 6.11unaffected
LinuxLinux6.18.32 <= 6.18.*unaffected
LinuxLinux7.0.9 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References