From patchwork Wed Jul 28 06:25:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 44496 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 11926382C412 for ; Wed, 28 Jul 2021 06:26:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 11926382C412 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1627453561; bh=CFTrnaYKZsMWuoM7eYtrFXBrH9Ha+eNHMgTraDap18Q=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=SNNKuQEkBZYW83Nq2H5mxy7ks7IykIdcUDuLXb9YhSlA5Xn8UHo1HEiXHWqHMfwz9 4MiGaF1sGl3pHXXCgnoplkysaNuJveNncu5Mg7jXaK7ZoN/aLCKdgJTjzt4EIbcFal iMFneccvDY4/AI1lev/WGe9M8X1YIH3XKhwKRoDQ= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from antelope.elm.relay.mailchannels.net (antelope.elm.relay.mailchannels.net [23.83.212.4]) by sourceware.org (Postfix) with ESMTPS id D12683857C78 for ; Wed, 28 Jul 2021 06:25:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D12683857C78 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 A7CD4342534; Wed, 28 Jul 2021 06:25:36 +0000 (UTC) Received: from pdx1-sub0-mail-a75.g.dreamhost.com (100-98-55-150.trex.outbound.svc.cluster.local [100.98.55.150]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 0DF9F34251E; Wed, 28 Jul 2021 06:25:36 +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 100.98.55.150 (trex/6.3.3); Wed, 28 Jul 2021 06:25:36 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Cure-Macabre: 67b3517a079815d7_1627453536492_2850387135 X-MC-Loop-Signature: 1627453536492:1654502841 X-MC-Ingress-Time: 1627453536491 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 C9F698C383; Tue, 27 Jul 2021 23:25:35 -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 501218C377; Tue, 27 Jul 2021 23:25:31 -0700 (PDT) X-DH-BACKEND: pdx1-sub0-mail-a75 To: libc-alpha@sourceware.org Subject: [PATCH] __cxa_thread_atexit_impl: Return -1 on allocation failure Date: Wed, 28 Jul 2021 11:55:22 +0530 Message-Id: <20210728062522.3904733-1-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 Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" Return -1 in the unlikely event that allocation fails when trying to register a TLS destructor. --- stdlib/cxa_thread_atexit_impl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/stdlib/cxa_thread_atexit_impl.c b/stdlib/cxa_thread_atexit_impl.c index 577ed30931..e956f4d804 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 +105,8 @@ __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)) + return -1; new->func = func; new->obj = obj; new->next = tls_dtor_list;