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From: Alan Somers <asomers@FreeBSD.org>
Date: Wed, 31 May 2017 14:59:04 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r319337 - head/sbin/camcontrol
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Author: asomers
Date: Wed May 31 14:59:03 2017
New Revision: 319337
URL: https://svnweb.freebsd.org/changeset/base/319337

Log:
  Fix integer overflow in "camcontrol format"
  
  Reported by:	Coverity
  CID:		1011426
  MFC after:	1 week
  Sponsored by:	Spectra Logic Corp

Modified:
  head/sbin/camcontrol/camcontrol.c

Modified: head/sbin/camcontrol/camcontrol.c
==============================================================================
--- head/sbin/camcontrol/camcontrol.c	Wed May 31 14:53:50 2017	(r319336)
+++ head/sbin/camcontrol/camcontrol.c	Wed May 31 14:59:03 2017	(r319337)
@@ -6221,15 +6221,15 @@ doreport:
 				if ((scsi_get_sks(sense, ccb->csio.sense_len -
 				     ccb->csio.sense_resid, sks) == 0)
 				 && (quiet == 0)) {
-					int val;
+					uint32_t val;
 					u_int64_t percentage;
 
 					val = scsi_2btoul(&sks[1]);
-					percentage = 10000 * val;
+					percentage = 10000ull * val;
 
 					fprintf(stdout,
 						"\rFormatting:  %ju.%02u %% "
-						"(%d/%d) done",
+						"(%u/%d) done",
 						(uintmax_t)(percentage /
 						(0x10000 * 100)),
 						(unsigned)((percentage /