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authorTheo de Raadt <deraadt@cvs.openbsd.org>2017-04-04 18:17:03 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2017-04-04 18:17:03 +0000
commit653f83720fd80b7b527283ca4a8aab51d7641d63 (patch)
treeb28402402a9d66401d7f42db6b77d1d29d8d1091
parent8d2e978f8b502d68f281ee7b221c0dd0f08da18f (diff)
struct vfsconf is tightly packed, but let's M_ZERO it in case that ever
changes to avoid exposing userland memory.
-rw-r--r--sys/kern/vfs_subr.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index a8a53052f66..8cdeb565922 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: vfs_subr.c,v 1.257 2017/01/15 23:18:05 bluhm Exp $ */
+/* $OpenBSD: vfs_subr.c,v 1.258 2017/04/04 18:17:02 deraadt Exp $ */
/* $NetBSD: vfs_subr.c,v 1.53 1996/04/22 01:39:13 christos Exp $ */
/*
@@ -1311,7 +1311,7 @@ vfs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
return (EOPNOTSUPP);
/* Make a copy, clear out kernel pointers */
- tmpvfsp = malloc(sizeof(*tmpvfsp), M_TEMP, M_WAITOK);
+ tmpvfsp = malloc(sizeof(*tmpvfsp), M_TEMP, M_WAITOK|M_ZERO);
memcpy(tmpvfsp, vfsp, sizeof(*tmpvfsp));
tmpvfsp->vfc_vfsops = NULL;
tmpvfsp->vfc_next = NULL;