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Alexander Usyskin
f112ea910e
Fix couple of problems in mei_cl_bus_dev_release():
mei_cl_flush_queues() is running without lock.
bus->file_list access after mei_dev_bus_put(bus) can become a
use-after-free if this was the last reference to bus.
Protect queues cleanup and WARN traversal by device lock there
to avoid the concurrent access problems.
Move WARN traversal before mei_dev_bus_put(bus).
This file uses bus variable name for mei_device, adjust
code of mei_cl_bus_dev_release() to use bus variable too.
Cc: stable <[email protected]>
Fixes: 35e8a426b1 ("mei: bus: Check for still connected devices in mei_cl_bus_dev_release()")
Reviewed-by: Menachem Adin <[email protected]>
Signed-off-by: Alexander Usyskin <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>