From owner-dev-commits-src-branches@freebsd.org Sun May 23 12:56:40 2021 Return-Path: Delivered-To: dev-commits-src-branches@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 670DB64791E; Sun, 23 May 2021 12:56:40 +0000 (UTC) (envelope-from git@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Fp0j347yHz3s05; Sun, 23 May 2021 12:56:39 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 2A9AE17ABC; Sun, 23 May 2021 12:56:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 14NCubc4084070; Sun, 23 May 2021 12:56:37 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 14NCubWY084069; Sun, 23 May 2021 12:56:37 GMT (envelope-from git) Date: Sun, 23 May 2021 12:56:37 GMT Message-Id: <202105231256.14NCubWY084069@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Lutz Donnerhacke Subject: git: fa670efa25ad - stable/13 - netgraph/ng_checksum: Fix double free error MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: donner X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: fa670efa25ad960e17a6a9cb4601e5c3f19de5da Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 23 May 2021 12:56:41 -0000 The branch stable/13 has been updated by donner: URL: https://cgit.FreeBSD.org/src/commit/?id=fa670efa25ad960e17a6a9cb4601e5c3f19de5da commit fa670efa25ad960e17a6a9cb4601e5c3f19de5da Author: Lutz Donnerhacke AuthorDate: 2021-05-15 09:32:57 +0000 Commit: Lutz Donnerhacke CommitDate: 2021-05-23 12:55:20 +0000 netgraph/ng_checksum: Fix double free error m_pullup(9) frees the mbuf(9) chain in the case of an allocation error. The mbuf chain must not be freed again in this case. PR: 255874 Submitted by: Approved by: markj Differential Revision: https://reviews.freebsd.org/D30273 (cherry picked from commit 687e510e5ce32fddf46a9dc1d517ccc8a8e25581) --- sys/netgraph/ng_checksum.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/netgraph/ng_checksum.c b/sys/netgraph/ng_checksum.c index 682375c805da..3b542bd86acc 100644 --- a/sys/netgraph/ng_checksum.c +++ b/sys/netgraph/ng_checksum.c @@ -682,9 +682,9 @@ bypass: return (error); done: + NG_FREE_M(m); drop: NG_FREE_ITEM(item); - NG_FREE_M(m); priv->stats.dropped++;