CVE request: Linux kernel: tty: kobject reference leakage in tty_open

[P J P <ppandit () redhat com>]

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  Hello,

Linux kernel built with the virtual console support(CONFIG_VT) is vulnerable
to a NULL pointer dereference issue. It could occur while accessing pseudo
terminal device(/dev/pts/*) files.

An unprivileged user could use this flaw to crash the system kernel resulting
in DoS.

Upstream fix:
- -------------
  -> https://git.kernel.org/linus/c290f8358acaeffd8e0c551ddcc24d1206143376


Thank you.
- --
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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