[GIT PULL] Char/Misc driver fixes for 5.5-rc6

[Greg KH]

The following changes since commit c79f46a282390e0f5b306007bf7b11a46d529538:

  Linux 5.5-rc5 (2020-01-05 14:23:27 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git tags/char-misc-5.5-rc6

for you to fetch changes up to 68faa679b8be1a74e6663c21c3a9d25d32f1c079:

  chardev: Avoid potential use-after-free in 'chrdev_open()' (2020-01-06 20:10:26 +0100)

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Char/Misc patch for 5.5-rc6

Here is a single fix, for the chrdev core, for 5.5-rc6

There's been a long-standing race condition triggered by syzbot, and
occasionally real people, in the chrdev open() path.  Will finally took
the time to track it down and fix it for real before the holidays.

Here's that one patch, it's been in linux-next for a while with no
reported issues and it does fix the reported problem.

Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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Will Deacon (1):
      chardev: Avoid potential use-after-free in 'chrdev_open()'

 fs/char_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)