From patchwork Mon Jan 3 22:38:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Cristian_Rodr=C3=ADguez?= X-Patchwork-Id: 49490 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 42ECD385800E for ; Mon, 3 Jan 2022 22:39:18 +0000 (GMT) X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-qk1-f172.google.com (mail-qk1-f172.google.com [209.85.222.172]) by sourceware.org (Postfix) with ESMTPS id AE38D3858421 for ; Mon, 3 Jan 2022 22:39:05 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org AE38D3858421 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=opensuse.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-qk1-f172.google.com with SMTP id t66so21698891qkb.4 for ; Mon, 03 Jan 2022 14:39:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1PkUrv2oxQTkT2+yaiIuBU07yqJ3GZzbNxi5b7xAGX8=; b=OjmtHfP92ZEEi8n662aOpHZSW/jOt4t59soh9XVA4vq62BbeAaMgIySGL/PT5bXyz3 IC1Kyf2QMSy6UlCsO7vnuyXPzNmaY75VYq25g3hsBeUVwXBONqLKOxIwnF6xvlV+3oDO +hRi8VJdtfKSmTj451bjPD+E+Yp+Ym/ZiBdK6gYRMXR3Xe6yrh26VEVrzAesxLNUuUd8 Aj+5oQ/PnAfrGGdBP5OhMk9xgDdEnsRGKKZhs/AHfjJZ2UzZlTntj2uADamzTjb5mxZw +00/6McrgMPXoOWZwLf6N4LvAambJB3KjfDvlGbH8IkpLg9U1Pty5M9q18O2CV7STPtS wi/Q== X-Gm-Message-State: AOAM533AN760Zcv4bV7uceAxEurd60FGnRoEGd3O7eyxb9Way+GlJYjd UJiY39ABTFJ6w4dMaHuH80BTHZuc1iUDeg== X-Google-Smtp-Source: ABdhPJyc/H0l/MRlc6efW7MPa14DY8R+HSVcRi/bH0m36FccrImu6whR1t/v6qy0wzbQBt0x4Uf2ZQ== X-Received: by 2002:a05:620a:28d1:: with SMTP id l17mr32132275qkp.264.1641249545205; Mon, 03 Jan 2022 14:39:05 -0800 (PST) Received: from tumbleweedvm.. (181-162-29-157.baf.movistar.cl. [181.162.29.157]) by smtp.gmail.com with ESMTPSA id y5sm28189476qkp.103.2022.01.03.14.39.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Jan 2022 14:39:05 -0800 (PST) From: =?utf-8?q?Cristian_Rodr=C3=ADguez?= To: libc-alpha@sourceware.org Subject: [PATCH] debug: Improve error message on fdelt_chk Date: Mon, 3 Jan 2022 22:38:51 +0000 Message-Id: <20220103223851.12354-1-crrodriguez@opensuse.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-8.6 required=5.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM, GIT_PATCH_0, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, 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: , Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" There is really no buffer overflow, but an invalid bit on fd_set Signed-off-by: Cristian Rodríguez --- debug/fdelt_chk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/debug/fdelt_chk.c b/debug/fdelt_chk.c index c5f16462ad..a796688c5a 100644 --- a/debug/fdelt_chk.c +++ b/debug/fdelt_chk.c @@ -22,7 +22,7 @@ long int __fdelt_chk (long int d) { if (d < 0 || d >= FD_SETSIZE) - __chk_fail (); + __fortify_fail ("invalid bit detected on fd_set"); return d / __NFDBITS; }