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From: Mark Johnston <markj@FreeBSD.org>
Date: Sun, 1 Sep 2019 21:20:31 +0000 (UTC)
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Subject: svn commit: r351671 - head/usr.bin/cpuset
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Author: markj
Date: Sun Sep  1 21:20:31 2019
New Revision: 351671
URL: https://svnweb.freebsd.org/changeset/base/351671

Log:
  Fix an off-by-one bug in the CPU and domain ID parser.
  
  The "size" parameter is the size of the corresponding bit set, so the
  maximum CPU or domain index is size - 1.
  
  MFC after:	1 week

Modified:
  head/usr.bin/cpuset/cpuset.c

Modified: head/usr.bin/cpuset/cpuset.c
==============================================================================
--- head/usr.bin/cpuset/cpuset.c	Sun Sep  1 19:13:20 2019	(r351670)
+++ head/usr.bin/cpuset/cpuset.c	Sun Sep  1 21:20:31 2019	(r351671)
@@ -100,10 +100,10 @@ parselist(char *list, struct bitset *mask, int size)
 	for (l = list; *l != '\0';) {
 		if (isdigit(*l)) {
 			curnum = atoi(l);
-			if (curnum > size)
+			if (curnum >= size)
 				errx(EXIT_FAILURE,
 				    "List entry %d exceeds maximum of %d",
-				    curnum, size);
+				    curnum, size - 1);
 			while (isdigit(*l))
 				l++;
 			switch (state) {