Date: Wed, 24 Aug 2016 02:31:03 +0000 (UTC) From: Bryan Drewery <bdrewery@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-releng@freebsd.org Subject: svn commit: r304719 - releng/11.0/sys/net80211 Message-ID: <201608240231.u7O2V3ru087599@repo.freebsd.org>
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Author: bdrewery Date: Wed Aug 24 02:31:03 2016 New Revision: 304719 URL: https://svnweb.freebsd.org/changeset/base/304719 Log: MFS r304715: MFC r304322: [net80211] correctly lock the ifp before accessing the lladdr. Approved by: re (gjb) Modified: releng/11.0/sys/net80211/ieee80211_ioctl.c Directory Properties: releng/11.0/ (props changed) Modified: releng/11.0/sys/net80211/ieee80211_ioctl.c ============================================================================== --- releng/11.0/sys/net80211/ieee80211_ioctl.c Wed Aug 24 02:29:25 2016 (r304718) +++ releng/11.0/sys/net80211/ieee80211_ioctl.c Wed Aug 24 02:31:03 2016 (r304719) @@ -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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