From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=fqcD=FS=suse.de=schwab@sourceware.org>
Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d])
	by sourceware.org (Postfix) with ESMTPS id A8BA63858C52
	for <libc-alpha@sourceware.org>; Wed,  4 Oct 2023 14:51:21 +0000 (GMT)
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org A8BA63858C52
Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de
Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de
Received: from relay2.suse.de (relay2.suse.de [149.44.160.134])
	by smtp-out2.suse.de (Postfix) with ESMTP id 1D81C1F38A;
	Wed,  4 Oct 2023 14:51:20 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa;
	t=1696431080; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:
	 mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=ZSgZWrZ+eRIOBg7R4CzuzgCtYra1x8jMIGgQ0KkLjP8=;
	b=pbTHIXhaJn7qIsawPx25wLz4wbppjfwc0QkLNhc8gfbKaG/IX2WD7sjrb4RlkMYTHdxQJe
	gVo63Y0jqEIpHWZVOEWKU/oW7TkzeOQwxgXqgOWbfTRONPcUeUbYkElTTNUvmZEzVEdrtR
	f1/8qnV793+WXOHf4Bs23jFoXxBybIQ=
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de;
	s=susede2_ed25519; t=1696431080;
	h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:
	 mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=ZSgZWrZ+eRIOBg7R4CzuzgCtYra1x8jMIGgQ0KkLjP8=;
	b=8kxPWhK2N2sS7P52HcGwenkSaQSCL2SQMvkQpi1aqwFvQbKyEiISad7qqntQKDL1EV/9gd
	fipVTgj4QPht/qBQ==
Received: from hawking.nue2.suse.org (unknown [10.168.4.11])
	by relay2.suse.de (Postfix) with ESMTP id EF41C2C143;
	Wed,  4 Oct 2023 14:51:19 +0000 (UTC)
Received: by hawking.nue2.suse.org (Postfix, from userid 17005)
	id 02F5C4A0522; Wed,  4 Oct 2023 16:51:19 +0200 (CEST)
From: Andreas Schwab <schwab@suse.de>
To: Volker =?utf-8?Q?Wei=C3=9Fmann?= <volker.weissmann@gmx.de>
Cc: libc-alpha@sourceware.org
Subject: Re: [PATCH v3] Fix FORTIFY_SOURCE false positive
In-Reply-To: <20231003171844.9586-1-volker.weissmann@gmx.de> ("Volker
	=?utf-8?Q?Wei=C3=9Fmann=22's?= message of "Tue, 3 Oct 2023 19:18:44 +0200")
References: <20231003171844.9586-1-volker.weissmann@gmx.de>
X-Yow: Send your questions to ``ASK ZIPPY'', Box 40474,
 San Francisco, CA 94140, USA
Date: Wed, 04 Oct 2023 16:51:19 +0200
Message-ID: <mvmh6n6phjs.fsf@suse.de>
User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Spam-Status: No, score=-9.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org
List-Id: <libc-alpha.sourceware.org>

On Okt 03 2023, Volker Weißmann wrote:

> diff --git a/sysdeps/unix/sysv/linux/readonly-area.c b/sysdeps/unix/sysv/linux/readonly-area.c
> index edc68873f6..ba32372ebb 100644
> --- a/sysdeps/unix/sysv/linux/readonly-area.c
> +++ b/sysdeps/unix/sysv/linux/readonly-area.c
> @@ -42,7 +42,9 @@ __readonly_area (const char *ptr, size_t size)
>  	     to the /proc filesystem if it is set[ug]id.  There has
>  	     been no willingness to change this in the kernel so
>  	     far.  */
> -	  || errno == EACCES)
> +	  || errno == EACCES
> +	  /* Process has reached the maximum number of open files.  */
> +	  || errno == EMFILE)

Should this also handle ENFILE?

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."