Author: truckman
Date: Tue Jun 7 16:53:05 2016
New Revision: 301556
URL: https://svnweb.freebsd.org/changeset/base/301556
Log:
MFC r299921
Add an assertion to catch a potential underflow in an array index
calculation, though this should not happen in the current code.
Reported by: Coverity
CID: 1008486
Modified:
stable/10/sbin/ifconfig/ifieee80211.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sbin/ifconfig/ifieee80211.c
==============================================================================
--- stable/10/sbin/ifconfig/ifieee80211.c Tue Jun 7 16:51:56 2016
(r301555)
+++ stable/10/sbin/ifconfig/ifieee80211.c Tue Jun 7 16:53:05 2016
(r301556)
@@ -3626,6 +3626,7 @@ list_txpow(int s)
/* suppress duplicates as above */
if (isset(reported, c->ic_ieee) && !verbose) {
/* XXX we assume duplicates are adjacent */
+ assert(achans->ic_nchans > 0);
prev = &achans->ic_chans[achans->ic_nchans-1];
/* display highest power on channel */
if (c->ic_maxpower > prev->ic_maxpower)
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