From owner-dev-commits-src-all@freebsd.org Thu Aug 12 08:57:28 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 46A48667F0F; Thu, 12 Aug 2021 08:57:28 +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 4GlgYh1M8Xz4TFG; Thu, 12 Aug 2021 08:57:28 +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 1725B20194; Thu, 12 Aug 2021 08:57:28 +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 17C8vRTT064318; Thu, 12 Aug 2021 08:57:27 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 17C8vRMU064317; Thu, 12 Aug 2021 08:57:27 GMT (envelope-from git) Date: Thu, 12 Aug 2021 08:57:27 GMT Message-Id: <202108120857.17C8vRMU064317@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Dmitry Chagin Subject: git: c2cc5345b88e - main - linux(4): Verify that higher 32bits of exit_signal in clone3 are unset. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: dchagin X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: c2cc5345b88e98efb85ebc7318b8f92a8455345e 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, 12 Aug 2021 08:57:28 -0000 The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=c2cc5345b88e98efb85ebc7318b8f92a8455345e commit c2cc5345b88e98efb85ebc7318b8f92a8455345e Author: Dmitry Chagin AuthorDate: 2021-08-12 08:56:51 +0000 Commit: Dmitry Chagin CommitDate: 2021-08-12 08:56:51 +0000 linux(4): Verify that higher 32bits of exit_signal in clone3 are unset. MFC after: 2 weeks --- sys/compat/linux/linux_fork.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/compat/linux/linux_fork.c b/sys/compat/linux/linux_fork.c index ba169ff98923..72e753db60d4 100644 --- a/sys/compat/linux/linux_fork.c +++ b/sys/compat/linux/linux_fork.c @@ -412,6 +412,10 @@ linux_clone3_args_valid(struct l_user_clone_args *uca) if (uca->stack != 0 && uca->stack_size == 0) return (EINVAL); + /* Verify that higher 32bits of exit_signal are unset. */ + if ((uca->exit_signal & ~(uint64_t)LINUX_CSIGNAL) != 0) + return (EINVAL); + /* Verify that no unsupported flags are passed along. */ if ((uca->flags & LINUX_CLONE_NEWTIME) != 0) { LINUX_RATELIMIT_MSG("unsupported clone3 option CLONE_NEWTIME");