From owner-dev-commits-src-all@freebsd.org Thu Jun 3 00:57:53 2021 Return-Path: Delivered-To: dev-commits-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 E065064F079; Thu, 3 Jun 2021 00:57:53 +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 4FwSDd0qLqz3K0B; Thu, 3 Jun 2021 00:57:53 +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 ED09B20C50; Thu, 3 Jun 2021 00:57:52 +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 1530vqMY020162; Thu, 3 Jun 2021 00:57:52 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1530vq3A020161; Thu, 3 Jun 2021 00:57:52 GMT (envelope-from git) Date: Thu, 3 Jun 2021 00:57:52 GMT Message-Id: <202106030057.1530vq3A020161@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Cy Schubert Subject: git: c8773c8018e7 - stable/12 - ipfilter: Fix ip_nat memory leak and use-after-free MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: cy X-Git-Repository: src X-Git-Refname: refs/heads/stable/12 X-Git-Reftype: branch X-Git-Commit: c8773c8018e74a34a5d9e7ec6d66f4311148f975 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Jun 2021 00:57:54 -0000 The branch stable/12 has been updated by cy: URL: https://cgit.FreeBSD.org/src/commit/?id=c8773c8018e74a34a5d9e7ec6d66f4311148f975 commit c8773c8018e74a34a5d9e7ec6d66f4311148f975 Author: Cy Schubert AuthorDate: 2021-05-25 18:54:49 +0000 Commit: Cy Schubert CommitDate: 2021-06-03 00:57:45 +0000 ipfilter: Fix ip_nat memory leak and use-after-free Unfortunately the wrong elemet is freed, also resulting in use-after-free. PR: 255859 Submitted by: lylgood@foxmail.com Reported by: lylgood@foxmail.com (cherry picked from commit 323a4e2c4e285e6f8eee8db3fe2cb7490a734da0) --- sys/contrib/ipfilter/netinet/ip_nat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/contrib/ipfilter/netinet/ip_nat.c b/sys/contrib/ipfilter/netinet/ip_nat.c index bbf78877249c..028be649cccd 100644 --- a/sys/contrib/ipfilter/netinet/ip_nat.c +++ b/sys/contrib/ipfilter/netinet/ip_nat.c @@ -6243,7 +6243,7 @@ ipf_nat_rule_deref(softc, inp) if (n->in_tqehead[0] != NULL) { if (ipf_deletetimeoutqueue(n->in_tqehead[0]) == 0) { - ipf_freetimeoutqueue(softc, n->in_tqehead[1]); + ipf_freetimeoutqueue(softc, n->in_tqehead[0]); } }