[PATCH v2 0/3] driver core: parent lock fixes

[Johan Hovold <johan@kernel.org>]

Mario Peter reported that USB interfaces may be probed without holding
the parent USB device lock during asynchronous and deferred probe.

This series addresses both cases, while fixing a long-standing
use-after-free issue with the parent lock implementation stemming from
the fact that the driver core does not necessarily hold a reference to
the parent device when taking its lock.

Johan


Changes in v2:
 - fix the parent lock UAF issue (new patch)
 - include my update of Mario's fix as it also depends on the UAF fix [1]


[1] https://lore.kernel.org/all/20261013140408.1226841-1-johan@kernel.org/


Johan Hovold (2):
  driver core: fix parent lock use-after-free on USB disconnect
  driver core: take parent lock on deferred probe

Mario Peter (1):
  driver core: take parent lock in async device attach

 drivers/base/base.h        |  1 +
 drivers/base/bus.c         | 32 +++++++++----
 drivers/base/dd.c          | 92 +++++++++++++++++++++-----------------
 drivers/usb/core/driver.c  |  1 -
 drivers/usb/core/message.c |  1 +
 include/linux/device.h     |  5 +++
 include/linux/device/bus.h |  3 --
 7 files changed, 81 insertions(+), 54 deletions(-)

-- 
2.55.0