From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id D4CD9A00C3; Tue, 2 Aug 2022 06:09:24 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id C420A40141; Tue, 2 Aug 2022 06:09:24 +0200 (CEST) Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) by mails.dpdk.org (Postfix) with ESMTP id B711D400D7 for ; Tue, 2 Aug 2022 06:09:23 +0200 (CEST) Received: by mail-pl1-f172.google.com with SMTP id w7so12292862ply.12 for ; Mon, 01 Aug 2022 21:09:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc; bh=GHIH4aCSYpvFre1f9x3JY+dhoBqf+nlx6IW6A4lXZsk=; b=VIVbo0HpYdMcGfgkviCTOzlfK5VoiamsuUEsYETUXocjCMc3C/XpKQdhfWoDbNAclI 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az6-20020a170902a58600b0016c31820a9bmr19519337plb.44.1659413362745; Mon, 01 Aug 2022 21:09:22 -0700 (PDT) MIME-Version: 1.0 References: <1659413297-34360-1-git-send-email-maoyingming@baidu.com> In-Reply-To: <1659413297-34360-1-git-send-email-maoyingming@baidu.com> From: Somnath Kotur Date: Tue, 2 Aug 2022 09:39:11 +0530 Message-ID: Subject: Re: [PATCH v3] net/bnxt: fix null pointer dereference in bnxt_hwrm_port_led_cfg() To: Mao YingMing Cc: dev@dpdk.org, Ajit Khaparde , Kalesh AP , Thomas Monjalon Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000000ceb4805e53a4879" X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --0000000000000ceb4805e53a4879 Content-Type: text/plain; charset="UTF-8" On Tue, Aug 2, 2022 at 9:38 AM Mao YingMing wrote: > > For VFs, bp->leds is uninitialized, check bp->leds is > not null before checking for bp->leds->num_leds. > > segfault backtrace in trex program when use VF: > 11: bnxt_hwrm_port_led_cfg (bp=0x23ffb2140, led_on=true) > 10: bnxt_dev_led_on_op (dev=0x22d7780 ) > 9: rte_eth_led_on (port_id=0) > 8: DpdkTRexPortAttr::set_led (this=0x23b6ce0, on=true) > 7: DpdkTRexPortAttr::DpdkTRexPortAttr > 6: CTRexExtendedDriverBnxt::create_port_attr > 5: CPhyEthIF::Create > 4: CGlobalTRex::device_start > 3: CGlobalTRex::Create > 2: main_test > 1: main > > Fixes: d4d5a04 ("net/bnxt: fix unnecessary memory allocation") > Cc: stable@dpdk.org > > Signed-off-by: Mao YingMing > --- > drivers/net/bnxt/bnxt_hwrm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c > index 9c52573..51e1e2d 100644 > --- a/drivers/net/bnxt/bnxt_hwrm.c > +++ b/drivers/net/bnxt/bnxt_hwrm.c > @@ -4535,7 +4535,7 @@ int bnxt_hwrm_port_led_cfg(struct bnxt *bp, bool led_on) > uint16_t duration = 0; > int rc, i; > > - if (!bp->leds->num_leds || BNXT_VF(bp)) > + if (BNXT_VF(bp) || !bp->leds || !bp->leds->num_leds) > return -EOPNOTSUPP; > > HWRM_PREP(&req, HWRM_PORT_LED_CFG, BNXT_USE_CHIMP_MB); > -- > 1.8.3.1 > Acked-by: Somnath Kotur --0000000000000ceb4805e53a4879 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQcAYJKoZIhvcNAQcCoIIQYTCCEF0CAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3HMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA 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