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 7A5DBA00C3; Tue, 2 Aug 2022 05:07:02 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 254A040141; Tue, 2 Aug 2022 05:07:02 +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 7D71A400D7 for ; Tue, 2 Aug 2022 05:07:01 +0200 (CEST) Received: by mail-pl1-f172.google.com with SMTP id d16so4118696pll.11 for ; Mon, 01 Aug 2022 20:07:01 -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=2FIGRoY4zPgSWjfzOsniHhaicJ86F981uRwl2SkNBDw=; b=RDuDMEkZBVY3JXX2s8yYXSrE8rHEreAxm2GRywYcZ3AZVGal3xbAA0e1WjDgcvI1Uw 5LvLUlfcjjUo6RM/3VR93Cx/Y8IAbwsNDnn/lM20o32RuyO4D/973AMD6u3JLAFwiY31 vnFjN9P+DY0KdJuiGf83k7PYInflO061enkrU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc; bh=2FIGRoY4zPgSWjfzOsniHhaicJ86F981uRwl2SkNBDw=; b=jnOwWggQzua+p2hfe5EdOaDOSrimz67S1Lp8ff9Z/+zd2hOsStajzUDZaPi0nbbYQF zMQ+Lry6coSUqZrDMbKp4T6JnPMngyW1skEaE4nGaILy/CGu2oO1TGv6XlCFZT0XIgEW EvF2EW/KKYwTCx6aSU03oqbXbZX3S58P6EQ/tyV+b4Rz0jinB7r24sQYC7dP//faYw3z Nq5f8stWI7xB9vgAuFqS6rHlktW34baaycGD2vYyYWcULyi/f6r4mSY1Mg56F50ysevk I0UqcpytuBuFwZ0HaM0rwl9gUb+XhYi5GSkoXaby+sst3i0g4Fsbv6st+1hvbag6iQbQ Os4Q== X-Gm-Message-State: ACgBeo2k46vaF1t+zaRvKnHAZ4x6FWssQbCvFuu0mfQQIl8GWmhjmaJJ Ozio4/Q2dIsrBk8pUumjexTrwq9350ai/KwIvGI1Qw== X-Google-Smtp-Source: AA6agR4wHgax+tPHN/46hgKr9X+0/BxTEXi1I+P9zmj5Qs78q0tAGGGH1bn8QjtO4uem2YHhiu1mxQ1A9SombbMoA9E= X-Received: by 2002:a17:90b:1941:b0:1f3:2636:895 with SMTP id nk1-20020a17090b194100b001f326360895mr22307136pjb.26.1659409620595; Mon, 01 Aug 2022 20:07:00 -0700 (PDT) MIME-Version: 1.0 References: <1659409422-6822-1-git-send-email-maoyingming@baidu.com> In-Reply-To: <1659409422-6822-1-git-send-email-maoyingming@baidu.com> From: Somnath Kotur Date: Tue, 2 Aug 2022 08:36:49 +0530 Message-ID: Subject: Re: [PATCH] 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="000000000000fe0e5305e5396897" 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 --000000000000fe0e5305e5396897 Content-Type: text/plain; charset="UTF-8" On Tue, Aug 2, 2022 at 8:33 AM Mao YingMing wrote: > Thanks for the patch > From: maoyingming > > VFs's "bp->leds" is allways null, check bp->leds is > not null before use bp->leds->num_leds. Typo in 'always' You can just say ' For VFs , bp->leds is uninitialized' > > 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..41e6067 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 > --000000000000fe0e5305e5396897 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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