Commit 6da8d866 authored Apr 02, 2010 by Oleg Nesterov Committed by Linus Torvalds Apr 02, 2010

tty: release_one_tty() forgets to put pids



release_one_tty(tty) can be called when tty still has a reference
to pgrp/session. In this case we leak the pid.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 483f64c4

drivers/char/tty_io.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1423,6 +1423,8 @@ static void release_one_tty(struct work_struct *work)
		list_del_init(&tty->tty_files);
		file_list_unlock();

		put_pid(tty->pgrp);
		put_pid(tty->session);
		free_tty_struct(tty);
		}

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