svn commit: r345575 - projects/fuse2/sys/fs/fuse

[Alan Somers]

Author: asomers
Date: Wed Mar 27 14:15:35 2019
New Revision: 345575
URL: https://svnweb.freebsd.org/changeset/base/345575

Log:
  fusefs: fix a derefence-after-null-check
  
  Reported by:	Coverity
  Coverity CID:	1017940
  Sponsored by:	The FreeBSD Foundation

Modified:
  projects/fuse2/sys/fs/fuse/fuse_node.c

Modified: projects/fuse2/sys/fs/fuse/fuse_node.c
==============================================================================
--- projects/fuse2/sys/fs/fuse/fuse_node.c	Wed Mar 27 14:07:09 2019	(r345574)
+++ projects/fuse2/sys/fs/fuse/fuse_node.c	Wed Mar 27 14:15:35 2019	(r345575)
@@ -284,8 +284,9 @@ fuse_vnode_get(struct mount *mp,
 		return err;
 	}
 	if (dvp != NULL) {
-		MPASS((cnp->cn_flags & ISDOTDOT) == 0);
-		MPASS(!(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.'));
+		MPASS(cnp && (cnp->cn_flags & ISDOTDOT) == 0);
+		MPASS(cnp &&
+			!(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.'));
 		fuse_vnode_setparent(*vpp, dvp);
 	}
 	if (dvp != NULL && cnp != NULL && (cnp->cn_flags & MAKEENTRY) != 0 &&