From nobody Sat Feb 7 18:53:28 2026 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 641B1C32792 for ; Tue, 23 Aug 2022 10:13:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353185AbiHWKNE (ORCPT ); Tue, 23 Aug 2022 06:13:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352684AbiHWKGG (ORCPT ); Tue, 23 Aug 2022 06:06:06 -0400 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5213EA346D; Tue, 23 Aug 2022 01:52:24 -0700 (PDT) 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 sin.source.kernel.org (Postfix) with ESMTPS id 8A162CE1B4A; Tue, 23 Aug 2022 08:52:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 87FEFC433B5; Tue, 23 Aug 2022 08:52:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661244741; bh=CjtXXraJnpmkjJ5WxA/lShwJHkaI3lD9zw4GIsjBwAY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r1iT6+oGoukfsN6aHKCqhM5tWP+YiAGxsbpmpR5OoytroDJs9qR0SdXnpqnJPEPUn n67X54ZUfY5lOzBRQM7K7/eOIhkKSJnXyZB8fTNbL9HkNWkyCiVAoj6LDOIdS1WTDH hGvXGuLNdEUh4GU5AnCqFFdpO5U6GrXRAWrQksA0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tom Rix , John Johansen Subject: [PATCH 4.14 183/229] apparmor: fix aa_label_asxprint return check Date: Tue, 23 Aug 2022 10:25:44 +0200 Message-Id: <20220823080100.146601150@linuxfoundation.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220823080053.202747790@linuxfoundation.org> References: <20220823080053.202747790@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Tom Rix commit 3e2a3a0830a2090e766d0d887d52c67de2a6f323 upstream. Clang static analysis reports this issue label.c:1802:3: warning: 2nd function call argument is an uninitialized value pr_info("%s", str); ^~~~~~~~~~~~~~~~~~ str is set from a successful call to aa_label_asxprint(&str, ...) On failure a negative value is returned, not a -1. So change the check. Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels") Signed-off-by: Tom Rix Signed-off-by: John Johansen Signed-off-by: Greg Kroah-Hartman --- security/apparmor/label.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/security/apparmor/label.c +++ b/security/apparmor/label.c @@ -1722,7 +1722,7 @@ void aa_label_xaudit(struct audit_buffer if (!use_label_hname(ns, label, flags) || display_mode(ns, label, flags)) { len =3D aa_label_asxprint(&name, ns, label, flags, gfp); - if (len =3D=3D -1) { + if (len < 0) { AA_DEBUG("label print error"); return; } @@ -1750,7 +1750,7 @@ void aa_label_seq_xprint(struct seq_file int len; =20 len =3D aa_label_asxprint(&str, ns, label, flags, gfp); - if (len =3D=3D -1) { + if (len < 0) { AA_DEBUG("label print error"); return; } @@ -1773,7 +1773,7 @@ void aa_label_xprintk(struct aa_ns *ns, int len; =20 len =3D aa_label_asxprint(&str, ns, label, flags, gfp); - if (len =3D=3D -1) { + if (len < 0) { AA_DEBUG("label print error"); return; }