From: Peter Hurley <peter@hurleysoftware.com>
Date: Sun, 10 Jan 2016 06:55:38 +0000 (-0800)
Subject: tty: audit: Always push audit buffer before TIOCSTI
X-Git-Tag: v4.14-rc1~3636^2~179
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=82b5c93a00169614a75d5fa3b5974f832a7857c7;p=platform%2Fkernel%2Flinux-rpi.git

tty: audit: Always push audit buffer before TIOCSTI

The data read from another tty may be relevant to the action of
the TIOCSTI ioctl; log the audit buffer immediately.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c
index 269e41f..fa461dc 100644
--- a/drivers/tty/tty_audit.c
+++ b/drivers/tty/tty_audit.c
@@ -130,19 +130,13 @@ void tty_audit_fork(struct signal_struct *sig)
  */
 void tty_audit_tiocsti(struct tty_struct *tty, char ch)
 {
-	struct tty_audit_buf *buf;
 	dev_t dev;
 
 	dev = MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index;
-	buf = current->signal->tty_audit_buf;
-	if (buf) {
-		mutex_lock(&buf->mutex);
-		if (buf->dev == dev)
-			tty_audit_buf_push(buf);
-		mutex_unlock(&buf->mutex);
-	}
+	if (tty_audit_push())
+		return;
 
-	if (audit_enabled && (current->signal->audit_tty & AUDIT_TTY_ENABLE)) {
+	if (audit_enabled) {
 		kuid_t auid;
 		unsigned int sessionid;