diff options
| author | truckman <truckman@FreeBSD.org> | 2016-06-07 16:53:05 +0000 |
|---|---|---|
| committer | truckman <truckman@FreeBSD.org> | 2016-06-07 16:53:05 +0000 |
| commit | 1d7291afd1c4e47d4446eeb61ef3890d158230c2 (patch) | |
| tree | 7fc2de76f3220b2a5938dad53eb39a8b6e900bbf /sbin | |
| parent | 223f7999b212496988916be99bfbd4e5f9543507 (diff) | |
| download | FreeBSD-src-1d7291afd1c4e47d4446eeb61ef3890d158230c2.zip FreeBSD-src-1d7291afd1c4e47d4446eeb61ef3890d158230c2.tar.gz | |
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
Diffstat (limited to 'sbin')
| -rw-r--r-- | sbin/ifconfig/ifieee80211.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sbin/ifconfig/ifieee80211.c b/sbin/ifconfig/ifieee80211.c index 1103215..e80fb98 100644 --- a/sbin/ifconfig/ifieee80211.c +++ b/sbin/ifconfig/ifieee80211.c @@ -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) |
