From owner-svn-src-all@freebsd.org Wed Jan 9 12:50:25 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DE93314A2471; Wed, 9 Jan 2019 12:50:25 +0000 (UTC) (envelope-from avos@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 80E6884A0A; Wed, 9 Jan 2019 12:50:25 +0000 (UTC) (envelope-from avos@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6E2DF1C254; Wed, 9 Jan 2019 12:50:25 +0000 (UTC) (envelope-from avos@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x09CoPTe018908; Wed, 9 Jan 2019 12:50:25 GMT (envelope-from avos@FreeBSD.org) Received: (from avos@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x09CoPi2018907; Wed, 9 Jan 2019 12:50:25 GMT (envelope-from avos@FreeBSD.org) Message-Id: <201901091250.x09CoPi2018907@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avos set sender to avos@FreeBSD.org using -f From: Andriy Voskoboinyk Date: Wed, 9 Jan 2019 12:50:25 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342883 - head/sys/net80211 X-SVN-Group: head X-SVN-Commit-Author: avos X-SVN-Commit-Paths: head/sys/net80211 X-SVN-Commit-Revision: 342883 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 80E6884A0A X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.95 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_LONG(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.96)[-0.957,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jan 2019 12:50:26 -0000 Author: avos Date: Wed Jan 9 12:50:24 2019 New Revision: 342883 URL: https://svnweb.freebsd.org/changeset/base/342883 Log: net80211: fix panic when device is removed during initialization if_dead() is called during device detach - check if interface is still exists before trying to refresh vap MAC address (IF_LLADDR will trigger page fault otherwise). MFC after: 5 days Modified: head/sys/net80211/ieee80211_ioctl.c Modified: head/sys/net80211/ieee80211_ioctl.c ============================================================================== --- head/sys/net80211/ieee80211_ioctl.c Wed Jan 9 11:13:05 2019 (r342882) +++ head/sys/net80211/ieee80211_ioctl.c Wed Jan 9 12:50:24 2019 (r342883) @@ -3537,9 +3537,13 @@ ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t /* * Check if the MAC address was changed * via SIOCSIFLLADDR ioctl. + * + * NB: device may be detached during initialization; + * use if_ioctl for existence check. */ if_addr_rlock(ifp); - if ((ifp->if_flags & IFF_UP) == 0 && + if (ifp->if_ioctl == ieee80211_ioctl && + (ifp->if_flags & IFF_UP) == 0 && !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp))) IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(ifp));