From owner-svn-src-all@freebsd.org Fri Dec 21 14:53:51 2018 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 89D3F134BD7F; Fri, 21 Dec 2018 14:53:51 +0000 (UTC) (envelope-from arybchik@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 2CB8B6B53C; Fri, 21 Dec 2018 14:53:51 +0000 (UTC) (envelope-from arybchik@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 1F50FEEEB; Fri, 21 Dec 2018 14:53:51 +0000 (UTC) (envelope-from arybchik@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBLErp4e030757; Fri, 21 Dec 2018 14:53:51 GMT (envelope-from arybchik@FreeBSD.org) Received: (from arybchik@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBLErpp4030756; Fri, 21 Dec 2018 14:53:51 GMT (envelope-from arybchik@FreeBSD.org) Message-Id: <201812211453.wBLErpp4030756@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: arybchik set sender to arybchik@FreeBSD.org using -f From: Andrew Rybchenko Date: Fri, 21 Dec 2018 14:53:51 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r342305 - stable/12/sys/dev/sfxge/common X-SVN-Group: stable-12 X-SVN-Commit-Author: arybchik X-SVN-Commit-Paths: stable/12/sys/dev/sfxge/common X-SVN-Commit-Revision: 342305 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2CB8B6B53C X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; 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: Fri, 21 Dec 2018 14:53:51 -0000 Author: arybchik Date: Fri Dec 21 14:53:50 2018 New Revision: 342305 URL: https://svnweb.freebsd.org/changeset/base/342305 Log: MFC r340797 sfxge(4): fix potential buffer overflow in Tx queue init Improve error checking to avoid a caller overflowing the MCDI request buffer if the requested TXQ size was excessively large. Submitted by: Andy Moreton Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18067 Modified: stable/12/sys/dev/sfxge/common/ef10_tx.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/sfxge/common/ef10_tx.c ============================================================================== --- stable/12/sys/dev/sfxge/common/ef10_tx.c Fri Dec 21 14:52:46 2018 (r342304) +++ stable/12/sys/dev/sfxge/common/ef10_tx.c Fri Dec 21 14:53:50 2018 (r342305) @@ -70,7 +70,7 @@ efx_mcdi_init_txq( EFX_TXQ_NBUFS(enp->en_nic_cfg.enc_txq_max_ndescs)); npages = EFX_TXQ_NBUFS(size); - if (npages > MC_CMD_INIT_TXQ_IN_DMA_ADDR_MAXNUM) { + if (MC_CMD_INIT_TXQ_IN_LEN(npages) > sizeof (payload)) { rc = EINVAL; goto fail1; }