From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 060FBC4338F for ; Wed, 28 Jul 2021 20:20:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E247660ED4 for ; Wed, 28 Jul 2021 20:20:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231539AbhG1UUh (ORCPT ); Wed, 28 Jul 2021 16:20:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231236AbhG1UUg (ORCPT ); Wed, 28 Jul 2021 16:20:36 -0400 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10D76C061757 for ; Wed, 28 Jul 2021 13:20:34 -0700 (PDT) Received: by mail-wm1-x331.google.com with SMTP id o5-20020a1c4d050000b02901fc3a62af78so5240976wmh.3 for ; Wed, 28 Jul 2021 13:20:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=w9vQwFcASQb3EzHQLNWp4nDbfy/m65eBhxhxbhipZGg=; b=eO/hn6Kg7KIqd3asEXCYfCnMmDyO76IcbRxLk/4hu/bmZ3Na3KUz4VT84S23cyWqLx dc9DLh34ebbb6dE8Bx74eiqVpmH8noabqxLzJd8QAJZVmFla/fpJ1EFEMgLEUt9NV3HU ikJ4aSgjBLbeg5NAGOZ0lbB6gdhUV93hrv/IpfCUM9MODpn6foDsIP/HJJF1YEAY23/p EsJeZXkBBx+GTHiviqxWJXqSUkA5FssJPO+MUXfzqS61dPktWaYZ4MQRrto9pk93Oh1E VK9sstc6SQ9HSbNROXO7pbL0yEleAkh+Z8B9Mqb8LCuHcHulO/sqUKMQYoyU7o1cg6FJ hXIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=w9vQwFcASQb3EzHQLNWp4nDbfy/m65eBhxhxbhipZGg=; b=UKmoxGegFYkOdanUXUUjdp25NyyJt2KwifJ5RIzUW2hgPFNHZ2xv+AURxApL6TJHNx H6e8ovxkQQ9a1dCs2eLXMQqFNmVN69X3mLUiI52zoRETIN18NagilTrjNyMkfgNrCLLj eBTvy/T8jaaTGnC9XJfXB/RhhRSv30O3w05toySGhMD9t4hG5S1oPQDEwlME/YUMGot2 1oXZTv8lqSYgWojHfV/u7mHeeepqzay2bEr6dmfGAgI1mftI8qeHGRvtEuaXnEBup39e XgNLfa4mGeAQ2nqEBfcmpaMfaB6YzPgkN7qbxsrNR/Mp+IDiJTH/J4m2Zh/i4ZKH79l7 mEKw== X-Gm-Message-State: AOAM5307jRkXJn7+YJAIwqt8MMHf/DeWfOpCsEVFTFGeAQKlUTaaDU8x RpChrc2SvnhgHaLo6TcP2/g= X-Google-Smtp-Source: ABdhPJx356Cr2+12oERrCGsrwPD4HEOreCd8CoGnoTVYSeKcQ5rWGlZG+1y9jX35swta7ka6hLdu3w== X-Received: by 2002:a05:600c:3581:: with SMTP id p1mr11297962wmq.150.1627503632697; Wed, 28 Jul 2021 13:20:32 -0700 (PDT) Received: from sqli.sqli.com ([195.53.121.100]) by smtp.googlemail.com with ESMTPSA id o29sm879703wms.13.2021.07.28.13.20.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jul 2021 13:20:32 -0700 (PDT) From: Alejandro Colomar To: mtk.manpages@gmail.com Cc: Richard Palethorpe , linux-man@vger.kernel.org, Alejandro Colomar Subject: [PATCH 20/32] wait.2: Add ESRCH for when pid == INT_MIN Date: Wed, 28 Jul 2021 22:19:56 +0200 Message-Id: <20210728202008.3158-21-alx.manpages@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210728202008.3158-1-alx.manpages@gmail.com> References: <20210728202008.3158-1-alx.manpages@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org From: Richard Palethorpe Please see upstream commit: commit dd83c161fbcc5d8be637ab159c0de015cbff5ba4 Author: zhongjiang Date: Mon Jul 10 15:53:01 2017 -0700 kernel/exit.c: avoid undefined behaviour when calling wait4() It avoids negating INT_MIN by returning early with ESRCH. Signed-off-by: Richard Palethorpe Signed-off-by: Alejandro Colomar --- man2/wait.2 | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/man2/wait.2 b/man2/wait.2 index 5ae955b3f..63d872ee6 100644 --- a/man2/wait.2 +++ b/man2/wait.2 @@ -455,6 +455,15 @@ was caught; see The .I options argument was invalid. +.TP +.B ESRCH +(for +.BR wait () +or +.BR waitpid ()) +.I pid +is equal to +.I INT_MIN .SH CONFORMING TO SVr4, 4.3BSD, POSIX.1-2001. .SH NOTES -- 2.32.0