mirror of
https://github.com/torvalds/linux.git
synced 2026-05-12 16:18:45 +02:00
6c8dfb0362
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]
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
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:
|
||
|---|---|---|
| .. | ||
| dpbp.c | ||
| dpcon.c | ||
| dpmcp.c | ||
| dprc-driver.c | ||
| dprc.c | ||
| fsl-mc-allocator.c | ||
| fsl-mc-bus.c | ||
| fsl-mc-msi.c | ||
| fsl-mc-private.h | ||
| fsl-mc-uapi.c | ||
| Kconfig | ||
| Makefile | ||
| mc-io.c | ||
| mc-sys.c | ||
| obj-api.c | ||