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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>
This commit is contained in:
Peter Hurley 2016-01-09 22:55:38 -08:00 committed by Greg Kroah-Hartman
parent f17c366274
commit 82b5c93a00
1 changed files with 3 additions and 9 deletions
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12
drivers/tty/tty_audit.c
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@ -130,19 +130,13 @@ void tty_audit_fork(struct signal_struct *sig)
*/ */
void tty_audit_tiocsti(struct tty_struct *tty, char ch) void tty_audit_tiocsti(struct tty_struct *tty, char ch)
{ {
struct tty_audit_buf *buf;
dev_t dev; dev_t dev;
dev = MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index; dev = MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index;
buf = current->signal->tty_audit_buf; if (tty_audit_push())
if (buf) { return;
mutex_lock(&buf->mutex);
if (buf->dev == dev)
tty_audit_buf_push(buf);
mutex_unlock(&buf->mutex);
}
if (audit_enabled && (current->signal->audit_tty & AUDIT_TTY_ENABLE)) { if (audit_enabled) {
kuid_t auid; kuid_t auid;
unsigned int sessionid; unsigned int sessionid;