CVE-2026-31487

In the Linux kernel, the following vulnerability has been resolved: spi: 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] Also note that we do not enable the driver_override feature of struct
bus_type, as SPI - in contrast to most other buses - passes "" to
sysfs_emit() when the driver_override pointer is NULL. Thus, printing
"
" instead of "(null)
".