From mboxrd@z Thu Jan 1 00:00:00 1970 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 1AA39C54E94 for ; Thu, 26 Jan 2023 09:26:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236733AbjAZJ0Q (ORCPT ); Thu, 26 Jan 2023 04:26:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233508AbjAZJ0P (ORCPT ); Thu, 26 Jan 2023 04:26:15 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BFBC170C for ; Thu, 26 Jan 2023 01:26:14 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id e10-20020a17090a630a00b0022bedd66e6dso4723566pjj.1 for ; Thu, 26 Jan 2023 01:26:14 -0800 (PST) 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:subject:date:message-id:reply-to; bh=11PEDfvJk5QynmslkUyxnYW8Ga/tj0XdcIZKaXDPHFI=; b=ORDmthKKp/nDHWq8VMloD7JowCZzNIohA7JNkWkBpPCwHCEqPFq/m7PPXiRcIwKE/E bwN2KEvG12tf2NyxXthPSVJArtWvX2pz6A7LzSPLp5Lv70AAAmmVxdLObWTiEcQmnFbx aXI+XuV7b67JxUzessaAAHGXmF4L93mmUA8UI= 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:subject:date:message-id :reply-to; bh=11PEDfvJk5QynmslkUyxnYW8Ga/tj0XdcIZKaXDPHFI=; b=QS7aU9YkHFyUvOUPnV8FRFRAUY2ZlrB8jnS+7+iNFhrBj21zg1rnee78ZBkvH54vrr CECJot+CSiH4Ndv8UtZmtzcUMR34PcWzEmoWy+KnSGccQIvYCx+fbztg7v24FVpxmP9R 6JIHb5YF4VGhjuihHr7J1fLS0BhyNVpYoANDoQQ5tY/Xni5IR/s4iyqFW97AYnrzhnlo OuFQgwK2RVCCCwG5uYJL52NBwrNCbASmNzSoYPUdiX68TILeKJ52k+/zsRdzh246iI4d veE5vLl5PJq1EiSIv2zTxG9A15TyYFt5DzPk/DgTABNMkINQ7YrGhhzsBCm6fp1Eed57 PsDA== X-Gm-Message-State: AFqh2komkihqhqRsN/H6Iyk5lJseUuiRQ1V4gsL3tviz9cmxXbBVFZpQ 35X90a3JWeTG8jHmGS7tM8/SYKHo7OfIJ8I1yRHruw== X-Google-Smtp-Source: AMrXdXsl5g9vLmz2ocR4ZZp6A42faNhkz+BY5v7bIzihnSz8Olyf5pmQ1iZbEgDk5rtW/ck7yRINJAr6LLdUlmqqCf8= X-Received: by 2002:a17:90b:378c:b0:229:2927:ee16 with SMTP id mz12-20020a17090b378c00b002292927ee16mr3294156pjb.7.1674725173601; Thu, 26 Jan 2023 01:26:13 -0800 (PST) MIME-Version: 1.0 References: <20230126064551.464468-1-jk@codeconstruct.com.au> In-Reply-To: <20230126064551.464468-1-jk@codeconstruct.com.au> From: Pavan Chebbi Date: Thu, 26 Jan 2023 14:56:01 +0530 Message-ID: Subject: Re: [PATCH net] net: mctp: purge receive queues on sk destruction To: Jeremy Kerr Cc: netdev@vger.kernel.org, Matt Johnston , Paolo Abeni , "David S. Miller" , Eric Dumazet , Jakub Kicinski Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="0000000000001be54205f327570b" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --0000000000001be54205f327570b Content-Type: text/plain; charset="UTF-8" On Thu, Jan 26, 2023 at 12:16 PM Jeremy Kerr wrote: > > We may have pending skbs in the receive queue when the sk is being > destroyed; add a destructor to purge the queue. > > MCTP doesn't use the error queue, so only the receive_queue is purged. > > Fixes: 833ef3b91de6 ("mctp: Populate socket implementation") > Signed-off-by: Jeremy Kerr > --- > net/mctp/af_mctp.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/net/mctp/af_mctp.c b/net/mctp/af_mctp.c > index 45bbe3e54cc2..3150f3f0c872 100644 > --- a/net/mctp/af_mctp.c > +++ b/net/mctp/af_mctp.c > @@ -587,6 +587,11 @@ static void mctp_sk_unhash(struct sock *sk) > del_timer_sync(&msk->key_expiry); > } > > +static void mctp_sk_destruct(struct sock *sk) > +{ > + skb_queue_purge(&sk->sk_receive_queue); > +} > + > static struct proto mctp_proto = { > .name = "MCTP", > .owner = THIS_MODULE, > @@ -623,6 +628,7 @@ static int mctp_pf_create(struct net *net, struct socket *sock, > return -ENOMEM; > > sock_init_data(sock, sk); > + sk->sk_destruct = mctp_sk_destruct; > > rc = 0; > if (sk->sk_prot->init) > -- > 2.35.1 > Looks good to me. Reviewed-by: Pavan Chebbi --0000000000001be54205f327570b 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 gg3EMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS MyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA vbCmXCcsbZ/a0fRIQMBxp4gJnnyeneFYpEtNydrZZ+GeKSMdHiDgXD1UnRSIudKo+moQ6YlCOu4t rVWO/EiXfYnK7zeop26ry1RpKtogB7/O115zultAz64ydQYLe+a1e/czkALg3sgTcOOcFZTXk38e aqsXsipoX1vsNurqPtnC27TWsA7pk4uKXscFjkeUE8JZu9BDKaswZygxBOPBQBwrA5+20Wxlk6k1 e6EKaaNaNZUy30q3ArEf30ZDpXyfCtiXnupjSK8WU2cK4qsEtj09JS4+mhi0CTCrCnXAzum3tgcH cHRg0prcSzzEUDQWoFxyuqwiwhHu3sPQNmFOMwIDAQABo4IB2jCCAdYwDgYDVR0PAQH/BAQDAgGG MGAGA1UdJQRZMFcGCCsGAQUFBwMCBggrBgEFBQcDBAYKKwYBBAGCNxQCAgYKKwYBBAGCNwoDBAYJ KwYBBAGCNxUGBgorBgEEAYI3CgMMBggrBgEFBQcDBwYIKwYBBQUHAxEwEgYDVR0TAQH/BAgwBgEB /wIBADAdBgNVHQ4EFgQUljPR5lgXWzR1ioFWZNW+SN6hj88wHwYDVR0jBBgwFoAUj/BLf6guRSSu TVD6Y5qL3uLdG7wwegYIKwYBBQUHAQEEbjBsMC0GCCsGAQUFBzABhiFodHRwOi8vb2NzcC5nbG9i YWxzaWduLmNvbS9yb290cjMwOwYIKwYBBQUHMAKGL2h0dHA6Ly9zZWN1cmUuZ2xvYmFsc2lnbi5j b20vY2FjZXJ0L3Jvb3QtcjMuY3J0MDYGA1UdHwQvMC0wK6ApoCeGJWh0dHA6Ly9jcmwuZ2xvYmFs c2lnbi5jb20vcm9vdC1yMy5jcmwwWgYDVR0gBFMwUTALBgkrBgEEAaAyASgwQgYKKwYBBAGgMgEo CjA0MDIGCCsGAQUFBwIBFiZodHRwczovL3d3dy5nbG9iYWxzaWduLmNvbS9yZXBvc2l0b3J5LzAN BgkqhkiG9w0BAQsFAAOCAQEAdAXk/XCnDeAOd9nNEUvWPxblOQ/5o/q6OIeTYvoEvUUi2qHUOtbf jBGdTptFsXXe4RgjVF9b6DuizgYfy+cILmvi5hfk3Iq8MAZsgtW+A/otQsJvK2wRatLE61RbzkX8 9/OXEZ1zT7t/q2RiJqzpvV8NChxIj+P7WTtepPm9AIj0Keue+gS2qvzAZAY34ZZeRHgA7g5O4TPJ /oTd+4rgiU++wLDlcZYd/slFkaT3xg4qWDepEMjT4T1qFOQIL+ijUArYS4owpPg9NISTKa1qqKWJ jFoyms0d0GwOniIIbBvhI2MJ7BSY9MYtWVT5jJO3tsVHwj4cp92CSFuGwunFMzCCA18wggJHoAMC AQICCwQAAAAAASFYUwiiMA0GCSqGSIb3DQEBCwUAMEwxIDAeBgNVBAsTF0dsb2JhbFNpZ24gUm9v dCBDQSAtIFIzMRMwEQYDVQQKEwpHbG9iYWxTaWduMRMwEQYDVQQDEwpHbG9iYWxTaWduMB4XDTA5 MDMxODEwMDAwMFoXDTI5MDMxODEwMDAwMFowTDEgMB4GA1UECxMXR2xvYmFsU2lnbiBSb290IENB IC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMTCkdsb2JhbFNpZ24wggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDMJXaQeQZ4Ihb1wIO2hMoonv0FdhHFrYhy/EYCQ8eyip0E XyTLLkvhYIJG4VKrDIFHcGzdZNHr9SyjD4I9DCuul9e2FIYQebs7E4B3jAjhSdJqYi8fXvqWaN+J J5U4nwbXPsnLJlkNc96wyOkmDoMVxu9bi9IEYMpJpij2aTv2y8gokeWdimFXN6x0FNx04Druci8u nPvQu7/1PQDhBjPogiuuU6Y6FnOM3UEOIDrAtKeh6bJPkC4yYOlXy7kEkmho5TgmYHWyn3f/kRTv riBJ/K1AFUjRAjFhGV64l++td7dkmnq/X8ET75ti+w1s4FRpFqkD2m7pg5NxdsZphYIXAgMBAAGj QjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBSP8Et/qC5FJK5N UPpjmove4t0bvDANBgkqhkiG9w0BAQsFAAOCAQEAS0DbwFCq/sgM7/eWVEVJu5YACUGssxOGhigH M8pr5nS5ugAtrqQK0/Xx8Q+Kv3NnSoPHRHt44K9ubG8DKY4zOUXDjuS5V2yq/BKW7FPGLeQkbLmU Y/vcU2hnVj6DuM81IcPJaP7O2sJTqsyQiunwXUaMld16WCgaLx3ezQA3QY/tRG3XUyiXfvNnBB4V 14qWtNPeTCekTBtzc3b0F5nCH3oO4y0IrQocLP88q1UOD5F+NuvDV0m+4S4tfGCLw0FREyOdzvcy a5QBqJnnLDMfOjsl0oZAzjsshnjJYS8Uuu7bVW/fhO4FCU29KNhyztNiUGUe65KXgzHZs7XKR1g/ XzCCBUwwggQ0oAMCAQICDBX9eQgKNWxyfhI1kzANBgkqhkiG9w0BAQsFADBbMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTExMC8GA1UEAxMoR2xvYmFsU2lnbiBHQ0MgUjMg UGVyc29uYWxTaWduIDIgQ0EgMjAyMDAeFw0yMjA5MTAwODE3NDZaFw0yNTA5MTAwODE3NDZaMIGO MQswCQYDVQQGEwJJTjESMBAGA1UECBMJS2FybmF0YWthMRIwEAYDVQQHEwlCYW5nYWxvcmUxFjAU BgNVBAoTDUJyb2FkY29tIEluYy4xFTATBgNVBAMTDFBhdmFuIENoZWJiaTEoMCYGCSqGSIb3DQEJ ARYZcGF2YW4uY2hlYmJpQGJyb2FkY29tLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC ggEBAK3X+BRR67FR5+Spki/E25HnHoYhm/cC6VA6qHwC3QqBNhCT13zsi1FLLERdKXPRrtVBM6d0 mfg/0rQJJ8Ez4C3CcKiO1XHcmESeW6lBKxOo83ZwWhVhyhNbGSwcrytDCKUVYBwwxR3PAyXtIlWn kDqifgqn3R9r2vJM7ckge8dtVPS0j9t3CNfDBjGw1DhK91fnoH1s7tLdj3vx9ZnKTmSl7F1psK2P OltyqaGBuzv+bJTUL+bmV7E4QBLIqGt4jVr1R9hJdH6KxXwJdyfHZ9C6qXmoe2NQhiFUyBOJ0wgk dB9Z1IU7nCwvNKYg2JMoJs93tIgbhPJg/D7pqW8gabkCAwEAAaOCAdowggHWMA4GA1UdDwEB/wQE AwIFoDCBowYIKwYBBQUHAQEEgZYwgZMwTgYIKwYBBQUHMAKGQmh0dHA6Ly9zZWN1cmUuZ2xvYmFs c2lnbi5jb20vY2FjZXJ0L2dzZ2NjcjNwZXJzb25hbHNpZ24yY2EyMDIwLmNydDBBBggrBgEFBQcw AYY1aHR0cDovL29jc3AuZ2xvYmFsc2lnbi5jb20vZ3NnY2NyM3BlcnNvbmFsc2lnbjJjYTIwMjAw TQYDVR0gBEYwRDBCBgorBgEEAaAyASgKMDQwMgYIKwYBBQUHAgEWJmh0dHBzOi8vd3d3Lmdsb2Jh bHNpZ24uY29tL3JlcG9zaXRvcnkvMAkGA1UdEwQCMAAwSQYDVR0fBEIwQDA+oDygOoY4aHR0cDov L2NybC5nbG9iYWxzaWduLmNvbS9nc2djY3IzcGVyc29uYWxzaWduMmNhMjAyMC5jcmwwJAYDVR0R BB0wG4EZcGF2YW4uY2hlYmJpQGJyb2FkY29tLmNvbTATBgNVHSUEDDAKBggrBgEFBQcDBDAfBgNV HSMEGDAWgBSWM9HmWBdbNHWKgVZk1b5I3qGPzzAdBgNVHQ4EFgQUEV6y/89alKPoFbKUaJXsvWu5 fdowDQYJKoZIhvcNAQELBQADggEBAEHSIB6g652wVb+r2YCmfHW47Jo+5TuCBD99Hla8PYhaWGkd 9HIyD3NPhb6Vb6vtMWJW4MFGQF42xYRrAS4LZj072DuMotr79rI09pbOiWg0FlRRFt6R9vgUgebu pWSH7kmwVXcPtY94XSMMak4b7RSKig2mKbHDpD4bC7eGlwl5RxzYkgrHtMNRmHmQor5Nvqe52cFJ 25Azqtwvjt5nbrEd81iBmboNTEnLaKuxbbCtLaMEP8xKeDjAKnNOqHUMps0AsQT8c0EGq39YHpjp Wn1l67VU0rMShbEFsiUf9WYgE677oinpdm0t2mdCjxr35tryxptoTZXKHDxr/Yy6l6ExggJtMIIC aQIBATBrMFsxCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQD EyhHbG9iYWxTaWduIEdDQyBSMyBQZXJzb25hbFNpZ24gMiBDQSAyMDIwAgwV/XkICjVscn4SNZMw DQYJYIZIAWUDBAIBBQCggdQwLwYJKoZIhvcNAQkEMSIEIKxnUaLN/p5pbRtxgtMh+ha8lhtrUHsf j2q10T5UXCygMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTIzMDEy NjA5MjYxNFowaQYJKoZIhvcNAQkPMVwwWjALBglghkgBZQMEASowCwYJYIZIAWUDBAEWMAsGCWCG SAFlAwQBAjAKBggqhkiG9w0DBzALBgkqhkiG9w0BAQowCwYJKoZIhvcNAQEHMAsGCWCGSAFlAwQC ATANBgkqhkiG9w0BAQEFAASCAQAklAKsebOLDiHR9SExDfD2Ea/uQs8bWpxv/XCuQ1LWw4eBmKE2 4wowNhFGpf7MYvmIWH+xmbLVw59n2NvUSvQeWJ2E2fVsDyzCsKQaLpFg+NuUwM+Ct/nAfsXrcs2g jWFXM8g5k0KuGy7W91sYYugI6MKeeGlJCpp0j4sfAJQXzBGGzVhW1/8ab21tJQHViHMLFNV8YubN H9ek59LwmEzDv5y91tdfNesYBZqerczelYDzoi9DVco98WG+S+ZA7CFa1gBPZCjItGK+radQrWsC 609s+BlLqMlsIOowM4IliltL4ZVkFQ6PWVdqVQ4ZIgoJIcx1Y10yJizM0k3C/xM7 --0000000000001be54205f327570b--