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authorMike Belopuhov <mikeb@cvs.openbsd.org>2010-12-14 20:26:45 +0000
committerMike Belopuhov <mikeb@cvs.openbsd.org>2010-12-14 20:26:45 +0000
commitd976f152bf123c6fd9d30a4de2f815a40093eb54 (patch)
tree6abe5a0031626a7de388bed78ec244bfd92e71a9 /sys/kern
parent19880e25c38df0d3f3eb20e536aa400d9b069601 (diff)
disable access to the crypto(4) device from userland; ok deraadt
Diffstat (limited to 'sys/kern')
-rw-r--r--sys/kern/kern_sysctl.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/kern/kern_sysctl.c b/sys/kern/kern_sysctl.c
index 0ebcf20cbeb..3d9e103cc8f 100644
--- a/sys/kern/kern_sysctl.c
+++ b/sys/kern/kern_sysctl.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kern_sysctl.c,v 1.195 2010/11/19 18:35:16 mikeb Exp $ */
+/* $OpenBSD: kern_sysctl.c,v 1.196 2010/12/14 20:26:44 mikeb Exp $ */
/* $NetBSD: kern_sysctl.c,v 1.17 1996/05/20 17:49:05 mrg Exp $ */
/*-
@@ -511,11 +511,17 @@ kern_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
#endif
#ifdef CRYPTO
case KERN_USERCRYPTO:
+ if (newp && newlen)
+ return (EINVAL);
return (sysctl_int(oldp, oldlenp, newp, newlen, &usercrypto));
case KERN_USERASYMCRYPTO:
+ if (newp && newlen)
+ return (EINVAL);
return (sysctl_int(oldp, oldlenp, newp, newlen,
&userasymcrypto));
case KERN_CRYPTODEVALLOWSOFT:
+ if (newp && newlen)
+ return (EINVAL);
return (sysctl_int(oldp, oldlenp, newp, newlen,
&cryptodevallowsoft));
#endif