[src/trunk]: src/sys/opencrypto Don't disclose uninitialized 32-bit word if c...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fd254cb41866
branches:  trunk
changeset: 825691:fd254cb41866
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Fri Jul 28 14:13:56 2017 +0000

description:
Don't disclose uninitialized 32-bit word if cryptodev_session fails.

>From Ilja Van Sprundel.

diffstat:

 sys/opencrypto/ocryptodev.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (30 lines):

diff -r 90dddd739901 -r fd254cb41866 sys/opencrypto/ocryptodev.c
--- a/sys/opencrypto/ocryptodev.c       Fri Jul 28 14:13:13 2017 +0000
+++ b/sys/opencrypto/ocryptodev.c       Fri Jul 28 14:13:56 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ocryptodev.c,v 1.8 2017/06/02 09:46:57 knakahara Exp $ */
+/*     $NetBSD: ocryptodev.c,v 1.9 2017/07/28 14:13:56 riastradh Exp $ */
 /*     $FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.4.2.4 2003/06/03 00:09:02 sam Exp $        */
 /*     $OpenBSD: cryptodev.c,v 1.53 2002/07/10 22:21:30 mickey Exp $   */
 
@@ -69,7 +69,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ocryptodev.c,v 1.8 2017/06/02 09:46:57 knakahara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ocryptodev.c,v 1.9 2017/07/28 14:13:56 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -245,8 +245,10 @@
        sop.mackeylen = osop->mackeylen;
        sop.mackey = osop->mackey;
        res = cryptodev_session(fcr, &sop);
+       if (res)
+               return res;
        osop->ses = sop.ses;
-       return res;
+       return 0;
 
 }