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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1314762

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1314762

Title:
  n_tty_write crash when echoing in raw mode

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux-armadaxp” package in Ubuntu:
  New
Status in “linux-ec2” package in Ubuntu:
  New
Status in “linux-fsl-imx51” package in Ubuntu:
  New
Status in “linux-lts-quantal” package in Ubuntu:
  New
Status in “linux-lts-raring” package in Ubuntu:
  New
Status in “linux-lts-saucy” package in Ubuntu:
  New
Status in “linux-mvl-dove” package in Ubuntu:
  New
Status in “linux-ti-omap4” package in Ubuntu:
  New

Bug description:
  The tty atomic_write_lock does not provide an exclusion guarantee for
  the tty driver if the termios settings are LECHO & !OPOST. And since
  it is unexpected and not allowed to call TTY buffer helpers like
  tty_insert_flip_string concurrently, this may lead to crashes when
  concurrect writers call pty_write. In that case the following two

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