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Date:      Wed, 26 Dec 2018 09:34:26 +0000 (UTC)
From:      Andrew Rybchenko <arybchik@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org
Subject:   svn commit: r342481 - stable/10/sys/dev/sfxge/common
Message-ID:  <201812260934.wBQ9YQw3001266@repo.freebsd.org>

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Author: arybchik
Date: Wed Dec 26 09:34:26 2018
New Revision: 342481
URL: https://svnweb.freebsd.org/changeset/base/342481

Log:
  MFC r340798
  
  sfxge(4): fix out of bounds read in VIs allocation
  
  Submitted by:   Andy Moreton <amoreton at solarflare.com>
  Sponsored by:   Solarflare Communications, Inc.
  Differential Revision:  https://reviews.freebsd.org/D18068

Modified:
  stable/10/sys/dev/sfxge/common/ef10_nic.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/sfxge/common/ef10_nic.c
==============================================================================
--- stable/10/sys/dev/sfxge/common/ef10_nic.c	Wed Dec 26 09:33:26 2018	(r342480)
+++ stable/10/sys/dev/sfxge/common/ef10_nic.c	Wed Dec 26 09:34:26 2018	(r342481)
@@ -557,7 +557,7 @@ efx_mcdi_alloc_vis(
 {
 	efx_mcdi_req_t req;
 	uint8_t payload[MAX(MC_CMD_ALLOC_VIS_IN_LEN,
-			    MC_CMD_ALLOC_VIS_OUT_LEN)];
+			    MC_CMD_ALLOC_VIS_EXT_OUT_LEN)];
 	efx_rc_t rc;
 
 	if (vi_countp == NULL) {
@@ -570,7 +570,7 @@ efx_mcdi_alloc_vis(
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_ALLOC_VIS_IN_LEN;
 	req.emr_out_buf = payload;
-	req.emr_out_length = MC_CMD_ALLOC_VIS_OUT_LEN;
+	req.emr_out_length = MC_CMD_ALLOC_VIS_EXT_OUT_LEN;
 
 	MCDI_IN_SET_DWORD(req, ALLOC_VIS_IN_MIN_VI_COUNT, min_vi_count);
 	MCDI_IN_SET_DWORD(req, ALLOC_VIS_IN_MAX_VI_COUNT, max_vi_count);



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