From patchwork Wed Jul 28 07:42:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 44499 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 8AA70398B870 for ; Wed, 28 Jul 2021 08:23:34 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8AA70398B870 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1627460614; bh=2Bouq6ZM2i212GZi//3lh+lUFPM66migzFJ2ssdwceo=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=Q34awB70mcWBizFsdUwWjySe3ZhSDmIJKbTT48Pto1NHuxLmfXoPCSG+qtv2J9nd+ RHODYxJ/KE2JndUQPIpaiyPQc1N8aIEd68fu1iFx1vXTWCYCP8C03M4BcSRlkaMBTz qg2oGAaeurmaCFTgZ9YDPx2O2T6iQSGUHi5khVxs= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from aye.elm.relay.mailchannels.net (aye.elm.relay.mailchannels.net [23.83.212.6]) by sourceware.org (Postfix) with ESMTPS id A2CC8398841A for ; Wed, 28 Jul 2021 07:42:39 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A2CC8398841A X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 59866921F5B; Wed, 28 Jul 2021 07:42:38 +0000 (UTC) Received: from pdx1-sub0-mail-a75.g.dreamhost.com (100-96-18-103.trex-nlb.outbound.svc.cluster.local [100.96.18.103]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id AA1209229E4; Wed, 28 Jul 2021 07:42:37 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from pdx1-sub0-mail-a75.g.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384) by 100.96.18.103 (trex/6.3.3); Wed, 28 Jul 2021 07:42:38 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Wide-Eyed-Bottle: 015f028869f26d92_1627458157918_1841078522 X-MC-Loop-Signature: 1627458157918:3131432801 X-MC-Ingress-Time: 1627458157917 Received: from pdx1-sub0-mail-a75.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a75.g.dreamhost.com (Postfix) with ESMTP id 594AE8C383; Wed, 28 Jul 2021 00:42:37 -0700 (PDT) Received: from rhbox.redhat.com (unknown [1.186.101.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: siddhesh@gotplt.org) by pdx1-sub0-mail-a75.g.dreamhost.com (Postfix) with ESMTPSA id 4458C8C382; Wed, 28 Jul 2021 00:42:34 -0700 (PDT) X-DH-BACKEND: pdx1-sub0-mail-a75 To: libc-alpha@sourceware.org Subject: [PATCH v3] __cxa_thread_atexit_impl: Abort on allocation failure [BZ #18524] Date: Wed, 28 Jul 2021 13:12:25 +0530 Message-Id: <20210728074225.3949333-1-siddhesh@sourceware.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Spam-Status: No, score=-3494.0 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_NONE, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Siddhesh Poyarekar via Libc-alpha From: Siddhesh Poyarekar Reply-To: Siddhesh Poyarekar Cc: fweimer@redhat.com Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" Abort in the unlikely event that allocation fails when trying to register a TLS destructor. --- stdlib/cxa_thread_atexit_impl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/stdlib/cxa_thread_atexit_impl.c b/stdlib/cxa_thread_atexit_impl.c index 577ed30931..fa6901a3a6 100644 --- a/stdlib/cxa_thread_atexit_impl.c +++ b/stdlib/cxa_thread_atexit_impl.c @@ -72,6 +72,7 @@ is not very different from a case where __call_tls_dtors is called after _dl_close_worker on the DSO and hence is an accepted execution. */ +#include #include #include @@ -104,6 +105,9 @@ __cxa_thread_atexit_impl (dtor_func func, void *obj, void *dso_symbol) /* Prepend. */ struct dtor_list *new = calloc (1, sizeof (struct dtor_list)); + if (__glibc_unlikely (new == NULL)) + __libc_fatal ("Fatal glibc error: failed to register TLS destructor: " + "out of memory\n"); new->func = func; new->obj = obj; new->next = tls_dtor_list;