From 64d6118ba6a37d7a47167ed5a815dc44400d8c50 Mon Sep 17 00:00:00 2001
From: Bill Joy <bill@ucbvax.Berkeley.EDU>
Date: Fri, 11 Apr 1980 17:15:59 -0800
Subject: [PATCH] fix bug in exece at badarg:

SCCS-vsn: sys/kern/kern_proc.c 3.2
---
 usr/src/sys/kern/kern_proc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/usr/src/sys/kern/kern_proc.c b/usr/src/sys/kern/kern_proc.c
index 8af1856a5e..04d1a52e04 100644
--- a/usr/src/sys/kern/kern_proc.c
+++ b/usr/src/sys/kern/kern_proc.c
@@ -1,4 +1,4 @@
-/*	kern_proc.c	3.1	%H%	*/
+/*	kern_proc.c	3.2	%H%	*/
 
 #include "../h/param.h"
 #include "../h/systm.h"
@@ -88,8 +88,12 @@ exece()
 				u.u_error = E2BIG;
 			if ((c = fubyte((caddr_t)ap++)) < 0)
 				u.u_error = EFAULT;
-			if (u.u_error)
+			if (u.u_error) {
+				if (bp)
+					brelse(bp);
+				bp = 0;
 				goto badarg;
+			}
 			if ((nc&BMASK) == 0) {
 				if (bp)
 					bdwrite(bp);
-- 
2.20.1