From owner-svn-src-all@freebsd.org Tue Aug 6 20:21:58 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 43BE3C9B0A; Tue, 6 Aug 2019 20:21:58 +0000 (UTC) (envelope-from kevans@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 4635df16NJz4Sfq; Tue, 6 Aug 2019 20:21:58 +0000 (UTC) (envelope-from kevans@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 0791D14B0; Tue, 6 Aug 2019 20:21:58 +0000 (UTC) (envelope-from kevans@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x76KLvL6057680; Tue, 6 Aug 2019 20:21:57 GMT (envelope-from kevans@FreeBSD.org) Received: (from kevans@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x76KLvAp057679; Tue, 6 Aug 2019 20:21:57 GMT (envelope-from kevans@FreeBSD.org) Message-Id: <201908062021.x76KLvAp057679@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kevans set sender to kevans@FreeBSD.org using -f From: Kyle Evans Date: Tue, 6 Aug 2019 20:21:57 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r350657 - head/sys/dev/ral X-SVN-Group: head X-SVN-Commit-Author: kevans X-SVN-Commit-Paths: head/sys/dev/ral X-SVN-Commit-Revision: 350657 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: Tue, 06 Aug 2019 20:21:58 -0000 Author: kevans Date: Tue Aug 6 20:21:57 2019 New Revision: 350657 URL: https://svnweb.freebsd.org/changeset/base/350657 Log: ral: rt2860: fix wcid2ni access/size issue RT2860_WCID_MAX is supposed to describe the max STA index for wcid2ni, and was instead being used as the size -- off-by-one. rt2860_drain_stats_fifo was range-checking wcid only after accessing out-of-bounds potentially. Submitted by: Augustin Cavalier (basically) Obtained from: Haiku (58d16d9fe2d5a209cf22823359a8407d138e1a87) Differential Revision: 3 days Modified: head/sys/dev/ral/rt2860.c head/sys/dev/ral/rt2860var.h Modified: head/sys/dev/ral/rt2860.c ============================================================================== --- head/sys/dev/ral/rt2860.c Tue Aug 6 20:13:28 2019 (r350656) +++ head/sys/dev/ral/rt2860.c Tue Aug 6 20:21:57 2019 (r350657) @@ -1092,10 +1092,12 @@ rt2860_drain_stats_fifo(struct rt2860_softc *sc) DPRINTFN(4, ("tx stat 0x%08x\n", stat)); wcid = (stat >> RT2860_TXQ_WCID_SHIFT) & 0xff; + if (wcid > RT2860_WCID_MAX) + continue; ni = sc->wcid2ni[wcid]; /* if no ACK was requested, no feedback is available */ - if (!(stat & RT2860_TXQ_ACKREQ) || wcid == 0xff || ni == NULL) + if (!(stat & RT2860_TXQ_ACKREQ) || ni == NULL) continue; /* update per-STA AMRR stats */ Modified: head/sys/dev/ral/rt2860var.h ============================================================================== --- head/sys/dev/ral/rt2860var.h Tue Aug 6 20:13:28 2019 (r350656) +++ head/sys/dev/ral/rt2860var.h Tue Aug 6 20:21:57 2019 (r350657) @@ -142,7 +142,7 @@ struct rt2860_softc { #define RT2860_PCIE (1 << 2) #define RT2860_RUNNING (1 << 3) - struct ieee80211_node *wcid2ni[RT2860_WCID_MAX]; + struct ieee80211_node *wcid2ni[RT2860_WCID_MAX + 1]; struct rt2860_tx_ring txq[6]; struct rt2860_rx_ring rxq;