[PATCH 00/11] USB: serial: io_edgeport: fixes and sync commands

[Johan Hovold <johan@kernel.org>]

This series fixes a NULL-deref triggered by syzbot, a memory corruption
and a UAF flagged by Sashiko, and another NULL-deref found through
inspection.

Also add the missing serialisation for MCR, drop the modem lines on
hangup and close, and switch to synchronous commands so that operations
are serialised as expected.

Johan


Johan Hovold (11):
  USB: serial: io_edgeport: fix NULL-deref on early status
  USB: serial: io_edgeport: fix potential fifo corruption
  USB: serial: io_edgeport: fix potential close() use-after-free
  USB: serial: io_edgeport: fix potential NULL-deref at open
  USB: serial: io_edgeport: serialise MCR accesses
  USB: serial: io_edgeport: drop redundant sanity checks
  USB: serial: io_edgeport: drop redundant open sanity checks
  USB: serial: io_edgeport: move initial termios update to open()
  USB: serial: io_edgeport: deassert DTR/RTS on close() and B0
  USB: serial: io_edgeport: replace atomic command allocations
  USB: serial: io_edgeport: switch to synchronous commands

 drivers/usb/serial/io_edgeport.c | 277 +++++++++++--------------------
 1 file changed, 93 insertions(+), 184 deletions(-)

-- 
2.55.0