diff -Naur openafs-1.4.7/src/afs/VNOPS/afs_vnop_lookup.c openafs-1.4.7.oden/src/afs/VNOPS/afs_vnop_lookup.c
--- openafs-1.4.7/src/afs/VNOPS/afs_vnop_lookup.c	2009-04-27 10:59:22.000000000 -0400
+++ openafs-1.4.7.oden/src/afs/VNOPS/afs_vnop_lookup.c	2009-04-27 10:59:38.000000000 -0400
@@ -538,8 +538,6 @@
     int nskip;			/* # of slots in the LRU queue to skip */
     struct vcache *lruvcp;	/* vcache ptr of our goal pos in LRU queue */
     struct dcache *dcp;		/* chunk containing the dir block */
-    char *statMemp;		/* status memory block */
-    char *cbfMemp;		/* callback and fid memory block */
     afs_size_t temp;		/* temp for holding chunk length, &c. */
     struct AFSFid *fidsp;	/* file IDs were collecting */
     struct AFSCallBack *cbsp;	/* call back pointers */
@@ -597,13 +595,11 @@
      * one for fids and callbacks, and one for stat info.  Well set
      * up our pointers to the memory from there, too.
      */
-    statMemp = osi_AllocLargeSpace(nentries * sizeof(AFSFetchStatus));
-    statsp = (struct AFSFetchStatus *)statMemp;
-    cbfMemp =
-	osi_AllocLargeSpace(nentries *
-			    (sizeof(AFSCallBack) + sizeof(AFSFid)));
-    fidsp = (AFSFid *) cbfMemp;
-    cbsp = (AFSCallBack *) (cbfMemp + nentries * sizeof(AFSFid));
+    statsp = (AFSFetchStatus *) 
+	    osi_Alloc(AFSCBMAX * sizeof(AFSFetchStatus));
+    fidsp = (AFSFid *) osi_AllocLargeSpace(nentries * sizeof(AFSFid));
+    cbsp = (AFSCallBack *) 
+	    osi_Alloc(AFSCBMAX * sizeof(AFSCallBack));
 
     /* next, we must iterate over the directory, starting from the specified
      * cookie offset (dirCookie), and counting out nentries file entries.
@@ -1091,8 +1087,9 @@
 	code = 0;
     }
   done2:
-    osi_FreeLargeSpace(statMemp);
-    osi_FreeLargeSpace(cbfMemp);
+    osi_FreeLargeSpace((char *)fidsp);
+    osi_Free((char *)statsp, AFSCBMAX * sizeof(AFSFetchStatus));
+    osi_Free((char *)cbsp, AFSCBMAX * sizeof(AFSCallBack));
     return code;
 }
 
diff -Naur openafs-1.4.7/src/sys/rmtsysc.c openafs-1.4.7.oden/src/sys/rmtsysc.c
--- openafs-1.4.7/src/sys/rmtsysc.c	2007-11-28 00:08:11.000000000 -0500
+++ openafs-1.4.7.oden/src/sys/rmtsysc.c	2009-04-27 10:59:38.000000000 -0400
@@ -241,8 +241,14 @@
     InData.rmtbulk_len = data->in_size;
     InData.rmtbulk_val = inbuffer;
     inparam_conversion(cmd, InData.rmtbulk_val, 0);
-    OutData.rmtbulk_len = data->out_size;
-    OutData.rmtbulk_val = data->out;
+
+    OutData.rmtbulk_len = MAXBUFFERLEN * sizeof(*OutData.rmtbulk_val);
+    OutData.rmtbulk_val = malloc(OutData.rmtbulk_len); 
+    if (!OutData.rmtbulk_val) {
+	free(inbuffer);
+	return -1;
+    }
+
     /* We always need to pass absolute pathnames to the remote pioctl since we
      * lose the current directory value when doing an rpc call. Below we
      * prepend the current absolute path directory, if the name is relative */
@@ -279,8 +285,15 @@
     if (!errorcode) {
 	/* Do the conversions back to the host order; store the results back
 	 * on the same buffer */
-	outparam_conversion(cmd, OutData.rmtbulk_val, 1);
+	if (data->out_size < OutData.rmtbulk_len) {
+	    errno = EINVAL;
+	    errorcode = -1;
+	} else {
+	    memcpy(data->out, OutData.rmtbulk_val, data->out_size);
+	    outparam_conversion(cmd, data->out, 1);
+	}
     }
+    free(OutData.rmtbulk_val);
     free(inbuffer);
     return errorcode;
 }