[0/5] USB: misc: fix disconnect bugs

Message

Johan Hovold Oct. 9, 2019, 3:38 p.m. UTC

This series fixes a number of issues introduced primarily with the
conversion to dev_err() and dev_dbg(), which failed to notice that the
drivers where using their USB interface and device pointers as
disconnected flags (leading to NULL derefs) and that they did not hold
references to the structures (leading to use-after-free on release()).

I've already fixed up a few of these USB character device drivers
separately, and the uss720 driver has similar bugs that remain to be
fixed.

Johan


Johan Hovold (5):
  USB: adutux: fix use-after-free on release
  USB: chaoskey: fix use-after-free on release
  USB: ldusb: fix NULL-derefs on driver unbind
  USB: legousbtower: fix use-after-free on release
  USB: yurex: fix NULL-derefs on disconnect

 drivers/usb/misc/adutux.c       |  3 ++-
 drivers/usb/misc/chaoskey.c     |  5 +++--
 drivers/usb/misc/ldusb.c        | 24 ++++++++++++------------
 drivers/usb/misc/legousbtower.c |  3 ++-
 drivers/usb/misc/yurex.c        | 11 +++++++----
 5 files changed, 26 insertions(+), 20 deletions(-)