From owner-dev-commits-src-all@freebsd.org Tue May 18 19:43:50 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 A20236559E2; Tue, 18 May 2021 19:43:50 +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 4Fl5zB3RMRz4jqb; Tue, 18 May 2021 19:43:50 +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 5E09125448; Tue, 18 May 2021 19:43:50 +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 14IJho3L051266; Tue, 18 May 2021 19:43:50 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 14IJho7p051265; Tue, 18 May 2021 19:43:50 GMT (envelope-from git) Date: Tue, 18 May 2021 19:43:50 GMT Message-Id: <202105181943.14IJho7p051265@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mark Johnston Subject: git: b295c5ddcef4 - main - socket: Release cred reference later in sodealloc() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: markj X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: b295c5ddcef4744ef7044d2327b4258b6ad055f0 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: Tue, 18 May 2021 19:43:50 -0000 The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=b295c5ddcef4744ef7044d2327b4258b6ad055f0 commit b295c5ddcef4744ef7044d2327b4258b6ad055f0 Author: Lv Yunlong AuthorDate: 2021-05-18 19:23:15 +0000 Commit: Mark Johnston CommitDate: 2021-05-18 19:25:40 +0000 socket: Release cred reference later in sodealloc() We dereference so->so_cred to update the per-uid socket buffer accounting, so the crfree() call must be deferred until after that point. PR: 255869 MFC after: 1 week --- sys/kern/uipc_socket.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c index ea86f66556ea..2a167eb68a22 100644 --- a/sys/kern/uipc_socket.c +++ b/sys/kern/uipc_socket.c @@ -476,7 +476,6 @@ sodealloc(struct socket *so) #endif hhook_run_socket(so, NULL, HHOOK_SOCKET_CLOSE); - crfree(so->so_cred); khelp_destroy_osd(&so->osd); if (SOLISTENING(so)) { if (so->sol_accept_filter != NULL) @@ -493,6 +492,7 @@ sodealloc(struct socket *so) SOCKBUF_LOCK_DESTROY(&so->so_snd); SOCKBUF_LOCK_DESTROY(&so->so_rcv); } + crfree(so->so_cred); mtx_destroy(&so->so_lock); uma_zfree(socket_zone, so); }