Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added a sanity check to the force-directory routine, as the CREATE and

Browse Source 
RENAME namei() operations may succeed without returning a vnode.
This commit is contained in:
kleink 1997-04-08 16:11:48 +00:00
parent 43bd8d5456
commit 513465cc2c
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
sys/kern/vfs_lookup.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vfs_lookup.c,v 1.21 1997/04/08 10:11:55 kleink Exp $ */
/* $NetBSD: vfs_lookup.c,v 1.22 1997/04/08 16:11:48 kleink Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1993
@ -177,8 +177,12 @@ namei(ndp)
if ((cnp->cn_flags & ISSYMLINK) == 0) {
/*
* If trailing '/'s implied a directory, verify this.
* Always check ndp->ni_vp: CREATE and RENAME may
* succeed without returning a vnode!
*/
if (forcedir && ndp->ni_vp->v_type != VDIR) {
if (forcedir &&
ndp->ni_vp != NULL &&
ndp->ni_vp->v_type != VDIR) {
if ((cnp->cn_flags & LOCKPARENT) &&
ndp->ni_pathlen == 1)
VOP_UNLOCK(ndp->ni_dvp);