From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D53A17F2 for ; Mon, 10 Jul 2023 04:02:31 +0000 (UTC) Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81256E5 for ; Sun, 9 Jul 2023 21:02:29 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id d2e1a72fcca58-666e3b15370so2167298b3a.0 for ; Sun, 09 Jul 2023 21:02:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1688961749; x=1691553749; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=vINU9DfJUVeyWBNEcYmJAthyuOCa0RIgvMazwsyOALE=; b=cuA4Iq9+N2z+BoNwp1QItUw+wR3cf4SCxAlUJ/e7864OAqmLVipK8cmMBJCwG4rKcC nyBJgXr56AV/KDN0CPuPjOMgNkpp+azS38xHkBt48GBRIAgcitiK9BhVinIH1bdeZQkz tbphCZ8fF57Q06kDKGkTohM45tw6ft1q2/qa4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688961749; x=1691553749; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=vINU9DfJUVeyWBNEcYmJAthyuOCa0RIgvMazwsyOALE=; b=e38ypoi+10v9QWDB+j2D8beT2rebkdKr45593R48RD3JmkjXU70ms+D9R6YH3MD19J NTVdjfjmK46MohUBvQfJADGKzh1sxhDO4YgMQrPpijpLmWS3sqR8iy9Q38/aQkaZenCe xeLbehpdIpEusejiecnzrXVe5sdQN1nVuQk4MbIs6qPdLf2Cv7kJcwl7JygTfHHquIqA 16Luq7zZN62DwFrzH3DfgDAm7y+wzBqEoxb3OIW5XfeWo+Y97lsjbUImaT9KllwdlOV3 e44srcTBZdFmJ8EtYW/1u3H1lgbxhAKQaN1hbSC61cn5r+pkh9lkdE2hVSSnOGhj53g/ vxPQ== X-Gm-Message-State: ABy/qLZqCST77SnpDMTvj+Hp5R5b86rCmDE1oWYRSD5r4vJ78ICvobnZ 0tS65wywl6ay5brxTXQF1TFCjmYlcf6wCw3DFS7cQQ== X-Google-Smtp-Source: APBJJlF0ODc4Q4/ST5n8anMDFTQrbANhHRqRLXXsV3k6T6Vlsdo+kWPTS+7Us7UsQJOATcdgINhV/CAKQwYSPNSDT/c= X-Received: by 2002:a17:90a:fa43:b0:263:3c2e:1a3 with SMTP id dt3-20020a17090afa4300b002633c2e01a3mr8892216pjb.3.1688961748863; Sun, 09 Jul 2023 21:02:28 -0700 (PDT) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20230710005736.3273464-1-yhao016@ucr.edu> In-Reply-To: <20230710005736.3273464-1-yhao016@ucr.edu> From: Pavan Chebbi Date: Mon, 10 Jul 2023 09:32:15 +0530 Message-ID: Subject: Re: [PATCH] ethernet: e1000e: Fix possible uninit bug To: Yu Hao Cc: Jesse Brandeburg , Tony Nguyen , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000001a7a7206001a0d62" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net --0000000000001a7a7206001a0d62 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, Jul 10, 2023 at 6:27=E2=80=AFAM Yu Hao wrote: > > The variable phy_data should be initialized in function e1e_rphy. > However, there is not return value check, which means there is a > possible uninit read later for the variable. > > Signed-off-by: Yu Hao > --- Shouldn't this be a v2? You are addressing a comment on your original patch right? Also please specify the target tree name. This may need a fixes tag also. > drivers/net/ethernet/intel/e1000e/netdev.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/eth= ernet/intel/e1000e/netdev.c > index 771a3c909c45..a807358a8174 100644 > --- a/drivers/net/ethernet/intel/e1000e/netdev.c > +++ b/drivers/net/ethernet/intel/e1000e/netdev.c > @@ -6909,7 +6909,7 @@ static int __e1000_resume(struct pci_dev *pdev) > > /* report the system wakeup cause from S3/S4 */ > if (adapter->flags2 & FLAG2_HAS_PHY_WAKEUP) { > - u16 phy_data; > + u16 phy_data =3D 0; > > e1e_rphy(&adapter->hw, BM_WUS, &phy_data); > if (phy_data) { > -- > 2.34.1 > > --0000000000001a7a7206001a0d62 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbQYJKoZIhvcNAQcCoIIQXjCCEFoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg 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