diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index ceb3c7245bcd..af3035a4cfbe 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -687,8 +687,10 @@ __getcwd(p, uap)
 	slash_prefixed = 0;
 	for (vp = fdp->fd_cdir; vp != fdp->fd_rdir && vp != rootvnode;) {
 		if (vp->v_flag & VROOT) {
-			if (vp->v_mount == NULL)	/* forced unmount */
+			if (vp->v_mount == NULL) {	/* forced unmount */
+				free(buf, M_TEMP);
 				return (EBADF);
+			}
 			vp = vp->v_mount->mnt_vnodecovered;
 			continue;
 		}