Author: tsoome
Date: Wed Jun 17 10:56:58 2020
New Revision: 362265
URL: https://svnweb.freebsd.org/changeset/base/362265

Log:
  loader: r362262 did miss the pathlen check
  
  While we are checking the "/dev/" prefix, we can skip the paths shorter than
  this prefix.
  
  Sponsored by: Netflix, Klara Inc.

Modified:
  head/stand/libsa/zfs/zfsimpl.c

Modified: head/stand/libsa/zfs/zfsimpl.c
==============================================================================
--- head/stand/libsa/zfs/zfsimpl.c      Wed Jun 17 10:50:55 2020        
(r362264)
+++ head/stand/libsa/zfs/zfsimpl.c      Wed Jun 17 10:56:58 2020        
(r362265)
@@ -1201,7 +1201,7 @@ vdev_init(uint64_t guid, const unsigned char *nvlist, 
                char prefix[] = "/dev/";
 
                len = strlen(prefix);
-               if (memcmp(path, prefix, len) == 0) {
+               if (len < pathlen && memcmp(path, prefix, len) == 0) {
                        path += len;
                        pathlen -= len;
                }
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