X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/527f99514973766e9c0382a4d8550dfb00f54939..d9a64523371fa019c4575bb400cbbc3a50ac9903:/bsd/nfs/nfs_subs.c

diff --git a/bsd/nfs/nfs_subs.c b/bsd/nfs/nfs_subs.c
index ff5ae70b6..0702fbed9 100644
--- a/bsd/nfs/nfs_subs.c
+++ b/bsd/nfs/nfs_subs.c
@@ -1688,8 +1688,15 @@ nfs_getattrcache(nfsnode_t np, struct nfs_vattr *nvaper, int flags)
 	 * and return cached attributes.
 	 */
 	if (!nfs_use_cache(nmp)) {
-		timeo = nfs_attrcachetimeout(np);
 		microuptime(&nowup);
+		if (np->n_attrstamp > nowup.tv_sec) {
+			printf("NFS: Attribute time stamp is in the future by %ld seconds. Invalidating cache\n",
+			       np->n_attrstamp - nowup.tv_sec);
+			NATTRINVALIDATE(np);
+			NACCESSINVALIDATE(np);
+			return (ENOENT);
+		}
+		timeo = nfs_attrcachetimeout(np);
 		if ((nowup.tv_sec - np->n_attrstamp) >= timeo) {
 			FSDBG(528, np, 0, 0xffffff02, ENOENT);
 			OSAddAtomic64(1, &nfsstats.attrcache_misses);