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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5467DC64ED6 for ; Mon, 27 Feb 2023 19:39:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229907AbjB0Tj5 (ORCPT ); Mon, 27 Feb 2023 14:39:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230049AbjB0Tj4 (ORCPT ); Mon, 27 Feb 2023 14:39:56 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5971127D49 for ; Mon, 27 Feb 2023 11:39:33 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1852060F10 for ; Mon, 27 Feb 2023 19:39:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 27825C433D2; Mon, 27 Feb 2023 19:39:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677526769; bh=+0BMPkfbvEjFXZ/Pf4xCzrgB0sRBf2UOfT/UecGKZ1s=; h=From:To:Cc:Subject:Date:From; b=ftBsntkNVeqjDJvkfp9XhpUN+Qf4ZTDd7ERlJu8m8sQzlr4q14fgQzehtlyX5/4B7 rYkRBGtNdsZgqSyJiUTlJsYcoqTHgC/UJyLmFrwSqjaC8h5oV0RgWlmZXyLrw3FsrX 07yEd74oZqfSZIMLHbY8tZt6w47SCGT49Sg4sxQSbhYDVxN1Vrl+H+Y3dSFxXIQL8Z 9OofUoDYW66u8fTTWbNuZqYmAmHQd1OR6g1FAFYOTSgdvldVxhcMaBwq6Je40o2hTJ ZxijkokKqUzo3adbObi6rgWFqu29brFrDjOudCPSLYWhiqCKexXDmNXcGNVIk5E0wy e29x0aTAXZI5Q== From: Jeff Layton To: linux-sparse@vger.kernel.org Cc: luc.vanoostenryck@gmail.com Subject: [sparse PATCH resend] linearize.c: fix buffer overrun warning from fortify Date: Mon, 27 Feb 2023 14:39:27 -0500 Message-Id: <20230227193927.87985-1-jlayton@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org The resulting string from snprintf, won't be nearly 64 bytes, but "buf" is only 16 bytes long here. This causes FORTIFY_SOURCE to complain when given the right options. Signed-off-by: Jeff Layton --- linearize.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linearize.c b/linearize.c index d9aed61b361f..1db2d505a7d4 100644 --- a/linearize.c +++ b/linearize.c @@ -91,7 +91,7 @@ const char *show_label(struct basic_block *bb) if (!bb) return ".L???"; - snprintf(buf, 64, ".L%u", bb->nr); + snprintf(buf, 16, ".L%u", bb->nr); return buf; } -- 2.39.2