Commit d196147e authored Oct 04, 2018 by Linus Torvalds Committed by Greg Kroah-Hartman Dec 01, 2018

tty: wipe buffer.



commit c9a8e5fce009e3c601a43c49ea9dbcb25d1ffac5 upstream.

After we are done with the tty buffer, zero it out.

Reported-by: aszlig <aszlig@nix.build>
Tested-by: Milan Broz <gmazyland@gmail.com>
Tested-by: Daniel Zatovic <daniel.zatovic@gmail.com>
Tested-by: aszlig <aszlig@nix.build>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 26350f89

drivers/tty/tty_buffer.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -454,6 +454,8 @@ receive_buf(struct tty_struct tty, struct tty_buffer head, int count)
		if (count && disc->ops->receive_buf)
		disc->ops->receive_buf(tty, p, f, count);
		}
		if (count > 0)
		memset(p, 0, count);
		return count;
		}