Author: vangyzen
Date: Mon Aug 31 15:03:23 2020
New Revision: 364989
URL: https://svnweb.freebsd.org/changeset/base/364989

Log:
  jedec_dimm: fix array overrun
  
  Coverity detected the overrunning of sc->part_str.
  
  Submitted by: bret_ketc...@dell.com
  Reported by:  Coverity
  MFC after:    2 weeks
  Sponsored by: Dell EMC Isilon
  Differential Revision:        https://reviews.freebsd.org/D26145

Modified:
  head/sys/dev/jedec_dimm/jedec_dimm.c

Modified: head/sys/dev/jedec_dimm/jedec_dimm.c
==============================================================================
--- head/sys/dev/jedec_dimm/jedec_dimm.c        Mon Aug 31 14:47:23 2020        
(r364988)
+++ head/sys/dev/jedec_dimm/jedec_dimm.c        Mon Aug 31 15:03:23 2020        
(r364989)
@@ -795,7 +795,7 @@ jedec_dimm_field_to_str(struct jedec_dimm_softc *sc, c
 
        /* If we're dealing with ASCII, convert trailing spaces to NULs. */
        if (ascii) {
-               for (i = dstsz; i > 0; i--) {
+               for (i = dstsz - 1; i > 0; i--) {
                        if (dst[i] == ' ') {
                                dst[i] = 0;
                        } else if (dst[i] == 0) {
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