CVE-2026-53115
UnknownSummary
A vulnerability has been identified in the Linux kernel related to the use of the driver_override infrastructure in the context of the fsl-mc bus. The issue arises because the match() function is called in __driver_attach() without holding the device lock, which can lead to a use-after-free (UAF) situation.
Risk Assessment
This vulnerability may lead to unauthorized memory access, posing a risk of system instability and potential attacks on data integrity.
Recommendation
It is recommended to update the Linux kernel to the latest version that includes a fix for this issue to ensure proper security and system stability.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]