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Date:      Fri, 16 Aug 2019 21:03:56 +0000 (UTC)
From:      Kyle Evans <kevans@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   svn commit: r351143 - in stable: 11/sys/dev/oce 11/sys/dev/ral 12/sys/dev/oce 12/sys/dev/ral
Message-ID:  <201908162103.x7GL3uww035589@repo.freebsd.org>
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Author: kevans
Date: Fri Aug 16 21:03:55 2019
New Revision: 351143
URL: https://svnweb.freebsd.org/changeset/base/351143

Log:
  MFC r350630, r350657: static analysis fixes from Haiku
  
  r350630:
  oce(4): potential out of bounds access before vector validation
  
  r350657:
  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.

Modified:
  stable/12/sys/dev/oce/oce_if.c
  stable/12/sys/dev/ral/rt2860.c
  stable/12/sys/dev/ral/rt2860var.h
Directory Properties:
  stable/12/   (props changed)

Changes in other areas also in this revision:
Modified:
  stable/11/sys/dev/oce/oce_if.c
  stable/11/sys/dev/ral/rt2860.c
  stable/11/sys/dev/ral/rt2860var.h
Directory Properties:
  stable/11/   (props changed)

Modified: stable/12/sys/dev/oce/oce_if.c
==============================================================================
--- stable/12/sys/dev/oce/oce_if.c	Fri Aug 16 21:01:35 2019	(r351142)
+++ stable/12/sys/dev/oce/oce_if.c	Fri Aug 16 21:03:55 2019	(r351143)
@@ -836,11 +836,13 @@ oce_fast_isr(void *arg)
 static int
 oce_alloc_intr(POCE_SOFTC sc, int vector, void (*isr) (void *arg, int pending))
 {
-	POCE_INTR_INFO ii = &sc->intrs[vector];
+	POCE_INTR_INFO ii;
 	int rc = 0, rr;
 
 	if (vector >= OCE_MAX_EQ)
 		return (EINVAL);
+
+	ii = &sc->intrs[vector];
 
 	/* Set the resource id for the interrupt.
 	 * MSIx is vector + 1 for the resource id,

Modified: stable/12/sys/dev/ral/rt2860.c
==============================================================================
--- stable/12/sys/dev/ral/rt2860.c	Fri Aug 16 21:01:35 2019	(r351142)
+++ stable/12/sys/dev/ral/rt2860.c	Fri Aug 16 21:03:55 2019	(r351143)
@@ -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: stable/12/sys/dev/ral/rt2860var.h
==============================================================================
--- stable/12/sys/dev/ral/rt2860var.h	Fri Aug 16 21:01:35 2019	(r351142)
+++ stable/12/sys/dev/ral/rt2860var.h	Fri Aug 16 21:03:55 2019	(r351143)
@@ -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;

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