Date: Thu, 18 Aug 2016 01:25:12 +0000 (UTC) From: Adrian Chadd <adrian@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r304322 - head/sys/net80211 Message-ID: <201608180125.u7I1PCs3014169@repo.freebsd.org>
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Author: adrian Date: Thu Aug 18 01:25:12 2016 New Revision: 304322 URL: https://svnweb.freebsd.org/changeset/base/304322 Log: [net80211] correctly lock the ifp before accessing the lladdr. Tested by: dhw Modified: head/sys/net80211/ieee80211_ioctl.c Modified: head/sys/net80211/ieee80211_ioctl.c ============================================================================== --- head/sys/net80211/ieee80211_ioctl.c Thu Aug 18 00:37:07 2016 (r304321) +++ head/sys/net80211/ieee80211_ioctl.c Thu Aug 18 01:25:12 2016 (r304322) @@ -3394,10 +3394,12 @@ ieee80211_ioctl(struct ifnet *ifp, u_lon * Check if the MAC address was changed * via SIOCSIFLLADDR ioctl. */ + if_addr_rlock(ifp); if ((ifp->if_flags & IFF_UP) == 0 && !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp))) IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(ifp)); + if_addr_runlock(ifp); } break; case SIOCADDMULTI:
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