From patchwork Thu Oct 11 23:31:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Edgecombe, Rick P" X-Patchwork-Id: 10637637 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C2EF7157A for ; Thu, 11 Oct 2018 23:44:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD5CC2C1A3 for ; Thu, 11 Oct 2018 23:44:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A0AC62C312; Thu, 11 Oct 2018 23:44:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3E8032C1A3 for ; Thu, 11 Oct 2018 23:44:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=8/aNrc2ebHgbLIuitf4kyLLedMhzbRXiN/p8RH6Z1e0=; b=m9rUVgDYHXNyONUzvPc36qEO7W U2aXZtc4R9c6HKirpqS5ZZ1j7Qn3TGWAEkmLlbIIrIXl9Z9zlXw3S8Qw2Mt8MFqgrnmjTtC2atIw6 ODHEV/pMdx7ng7wplpRbDhMrsu3di2Iq+WsVZPpMJi0fb+uX58RewB7fAd5bbiVSJNm+9kZEhJ/Fl 5jUrFb9r0iBpvrj7p2tH68KPMuDus7xDdmvkWEpBP9EoxHaXnkZowEsbfEqTpsJlL2kapa76CoLHa PucMV3b1FgiKZl+qCLucKHSMHAYvAF/9g7NDMi0Zn3TGim7by9390tGDjOMHLbxMwNl1ek/6466Gv JzsNkq7Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gAkcO-0003WR-Oh; Thu, 11 Oct 2018 23:43:48 +0000 Received: from mga12.intel.com ([192.55.52.136]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gAkZ1-0000qB-90 for linux-arm-kernel@lists.infradead.org; Thu, 11 Oct 2018 23:40:27 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Oct 2018 16:40:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,370,1534834800"; d="scan'208";a="96792951" Received: from rpedgeco-desk5.jf.intel.com ([10.54.75.168]) by fmsmga004.fm.intel.com with ESMTP; 11 Oct 2018 16:40:06 -0700 From: Rick Edgecombe To: kernel-hardening@lists.openwall.com, daniel@iogearbox.net, keescook@chromium.org, catalin.marinas@arm.com, will.deacon@arm.com, davem@davemloft.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, arnd@arndb.de, jeyu@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH v2 6/7] sparc/modules: Add rlimit for sparc modules Date: Thu, 11 Oct 2018 16:31:16 -0700 Message-Id: <20181011233117.7883-7-rick.p.edgecombe@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181011233117.7883-1-rick.p.edgecombe@intel.com> References: <20181011233117.7883-1-rick.p.edgecombe@intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181011_164019_361525_0579F400 X-CRM114-Status: GOOD ( 11.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dave.hansen@intel.com, deneen.t.dock@intel.com, Rick Edgecombe , arjan@linux.intel.com, kristen@linux.intel.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This adds in the rlimit checking for the sparc module allocator. This has not been tested. Signed-off-by: Rick Edgecombe --- arch/sparc/kernel/module.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index df39580f398d..24854fdfa7c3 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -44,10 +44,15 @@ void *module_alloc(unsigned long size) { void *ret; + if (check_inc_mod_rlimit(size)) + return NULL; + ret = module_map(size); if (ret) memset(ret, 0, size); + update_mod_rlimit(ret, size); + return ret; }