From patchwork Mon Mar 8 22:10:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luiz Augusto von Dentz X-Patchwork-Id: 12123483 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,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 CB9E2C433E0 for ; Mon, 8 Mar 2021 22:11:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 896066525F for ; Mon, 8 Mar 2021 22:11:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230169AbhCHWLS (ORCPT ); Mon, 8 Mar 2021 17:11:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229528AbhCHWKt (ORCPT ); Mon, 8 Mar 2021 17:10:49 -0500 Received: from mail-pl1-x62f.google.com (mail-pl1-x62f.google.com [IPv6:2607:f8b0:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2384C06174A for ; Mon, 8 Mar 2021 14:10:48 -0800 (PST) Received: by mail-pl1-x62f.google.com with SMTP id n17so1994488plc.7 for ; Mon, 08 Mar 2021 14:10:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=w2fPOdA2Ht3DVZCeUZ8JXe38aGyGDP4IZUzHum7DT3A=; b=EPkFsAegXc/9JNJ2iVjejRp17mPa/S9lI2ihAoPX+hUjm1BYcyVYz3Elbfn+MImS7y wuFsRLvi0DqgU81Nqr07uOgcwVgT+CaW4XWenr1Swu0LjjXGlo3WyrKJyVJM69/U/u5m TTAJMoRAuk+F84woswYmUNLj523+/NxDZlgFrqIMUA3jdkFGF+wYOoJ2JAUcMTM4oK8K E8lh9krF0t40ykmuOy4HMSmi1DuXY1vovH2i2Bt/RG4qKIo3vl5XiAZe5pwYjU5cLyvp P7uEysdj/Jmh5OSjncPUnjBdNWG+X+mWGCuEUKlhL8U1I8EKGqb0flIp2MXdJfL8EKm+ lNow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=w2fPOdA2Ht3DVZCeUZ8JXe38aGyGDP4IZUzHum7DT3A=; b=MHDhHXnZ+iia6r19+rd3HZHT9YHSEJKdMHcXV1eblaIZ7f7DH5/ldJ5fPyTWLU4lm8 a3eZ3ZGodIyJOU9zKah4d7ukccudSqS2ONqW1Barahv/R5VYINTuMpkaJ0oJXDP2DpI9 aIL4JMW34yumuRFV3zvXskoivuKmG4hSnfrzG9GsC2VJA728J8bj0Vc/Sv9I7jej1o5o onK5lMFetW9EPvJ8v9B/Zasaxr2/r6TrGVR0JP2qblQXYa5mE3hOdRtsklDGQGcR3JaY lD2y66ZSJ9+iftX6QVlG0g+Mqt4ds25bAK3xU2JfaUgBkJbSOqchOi7MNXlTIcCVralg mApw== X-Gm-Message-State: AOAM532I41A+c0G5/CO5G3hJTfvbWuU7cI/020wj4hpQOrqwv8oJIz0i pg5tItBO+xNnbA0tswj/L2RstULyM4vsoA== X-Google-Smtp-Source: ABdhPJwcU9bojXFCMQ598IT1tN/Xuv+6DHxJ+0UkQiyw7CTZzcDsheEkNrhehammZdW6llwTJwAOow== X-Received: by 2002:a17:90a:ce03:: with SMTP id f3mr1029156pju.195.1615241448234; Mon, 08 Mar 2021 14:10:48 -0800 (PST) Received: from lvondent-mobl4.intel.com (c-71-56-157-77.hsd1.or.comcast.net. [71.56.157.77]) by smtp.gmail.com with ESMTPSA id w79sm2977095pfc.87.2021.03.08.14.10.47 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Mar 2021 14:10:47 -0800 (PST) From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH BlueZ] monitor: Fix invalid access Date: Mon, 8 Mar 2021 14:10:46 -0800 Message-Id: <20210308221046.339931-1-luiz.dentz@gmail.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org From: Luiz Augusto von Dentz ident can be NULL when printing user logs which may lead ot invalid access. --- monitor/packet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/monitor/packet.c b/monitor/packet.c index a72b424fe..8b87d3d8b 100644 --- a/monitor/packet.c +++ b/monitor/packet.c @@ -11306,7 +11306,7 @@ void packet_user_logging(struct timeval *tv, struct ucred *cred, label = "Message"; } - if (ident[0] == '<' || ident[0] == '>') { + if (ident && (ident[0] == '<' || ident[0] == '>')) { packet_decode(tv, cred, ident[0], index, color, label == ident ? &ident[2] : label, data, size);