diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-04 11:06:13 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-01 09:46:40 +0100 |
| commit | d196147ecf0951e15db959cac24d0ce8695a1897 (patch) | |
| tree | cbef9c19494019ea96fa4449dd51ce6e5a0d151f /drivers/tty/tty_buffer.c | |
| parent | 26350f8993680c9ed6e3007b7422aa6955856c40 (diff) | |
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>
Diffstat (limited to 'drivers/tty/tty_buffer.c')
| -rw-r--r-- | drivers/tty/tty_buffer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 8f3566cde3eb..355e9cad680d 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -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; } |