2b38efc05b
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]
Link: https://lore.kernel.org/driver-core/DGRGTIRHA62X.3RY09D9SOK77P@kernel.org/ [1]
Reported-by: Gui-Dong Han <hanguidong02@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220789
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| core.c | ||
| messaging.c | ||
| qcom-ngd-ctrl.c | ||
| sched.c | ||
| slimbus.h | ||
| stream.c | ||