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 X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,SUBJ_ALL_CAPS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 2622BC4741F for ; Mon, 28 Sep 2020 10:46:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C022C20789 for ; Mon, 28 Sep 2020 10:46:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="GPlJtmfy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726564AbgI1KqO (ORCPT ); Mon, 28 Sep 2020 06:46:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726420AbgI1KqN (ORCPT ); Mon, 28 Sep 2020 06:46:13 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23800C061755 for ; Mon, 28 Sep 2020 03:46:13 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id x22so590781pfo.12 for ; Mon, 28 Sep 2020 03:46:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to; bh=yRtbGMQGTUP5NqJbNq+sEzmQzD4cPSS5qfL+t5fGz/s=; b=GPlJtmfyzoI55HVi1pMVHA3Z4fU++DgzSPnBPkDOwoicj58z79aQMnCEYyT/isKBAo k4sqrvPeSlHG6q8pewRnMe8umkd4qY+NsVn1sha/JOJ4qGr6jhZagmjz90TWQ2GUqp+N 7sCcB0Ab/5p8wgZrBoMdQHQ54iaJaOe53iJ1k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to; bh=yRtbGMQGTUP5NqJbNq+sEzmQzD4cPSS5qfL+t5fGz/s=; b=U0RWKLcPvK4p1H3X4eBzVvdLHPhwsz9K9CjlMCO2NVEusRqmSSkV6lQEq6h74zVZJ3 VDN+ZBR2L08ynrELyzQnNq+Ue6hkz3jss6vnIbt8aIqwBeiV/M3mOIZbsNufImLquph+ eeCGyQE+FVYx56n76hh+Zv1Sej9Xsst6Q7ZHwmlPmE7ck7eGBbkS6aUh9dJN9oe/YA7v hcZMB42/K9JDXyXhAoh/2diibJ8IKsxX52+gYKXL4VLxB/K/Tnu5pdnSrbg2l5zXd5qy cpA0XVQYNxlqIYwmJP6vPX/c94OELVMF0jHZi1hwHLQCmZ1p6qDEeMzAXb3pqC/S5pno vFsA== X-Gm-Message-State: AOAM533OuvKry1Hrz/ley3uHl8pYg6sxNh9fEVFvMy21gLxEm+aS1T4S J0rI5+2hkOW+DNMhzrVIBAf4BQ== X-Google-Smtp-Source: ABdhPJyzrWGjZLMlYtNPjSvGzQEly2tyok365/8/D1IzXrb8KwMnlv296kJrRaEOheOA9Bl9F/ykLA== X-Received: by 2002:a17:902:b713:b029:d2:6153:fb62 with SMTP id d19-20020a170902b713b02900d26153fb62mr1019334pls.28.1601289972570; Mon, 28 Sep 2020 03:46:12 -0700 (PDT) Received: from [192.168.178.129] (f140230.upc-f.chello.nl. [80.56.140.230]) by smtp.gmail.com with ESMTPSA id f5sm975238pfj.212.2020.09.28.03.46.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Sep 2020 03:46:11 -0700 (PDT) Subject: Re: WARNING: CPU: 1 To: Dmitry Vyukov Cc: syzbot , LKML , netdev , syzkaller-bugs , Johannes Berg , linux-wireless References: <000000000000bbdb3b05b0477890@google.com> From: Arend Van Spriel Message-ID: <0e2bbc76-1451-a084-dc16-b21c33ca6d82@broadcom.com> Date: Mon, 28 Sep 2020 12:46:08 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.2.2 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="00000000000004ef4505b05d608e" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org --00000000000004ef4505b05d608e Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit On 9/28/2020 12:04 PM, Dmitry Vyukov wrote: > On Mon, Sep 28, 2020 at 11:31 AM Arend Van Spriel > wrote: >> >> On 9/27/2020 10:47 AM, Dmitry Vyukov wrote: >>> On Sun, Sep 27, 2020 at 10:38 AM syzbot >>> wrote: >>>> >>>> Hello, >>>> >>>> syzbot found the following issue on: >>>> >>>> HEAD commit: 748d1c8a Merge branch 'devlink-Use-nla_policy-to-validate-.. >>>> git tree: net-next >>>> console output: https://syzkaller.appspot.com/x/log.txt?x=13ac3ec3900000 >>>> kernel config: https://syzkaller.appspot.com/x/.config?x=51fb40e67d1e3dec >>>> dashboard link: https://syzkaller.appspot.com/bug?extid=3640e696903873858f7e >>>> compiler: gcc (GCC) 10.1.0-syz 20200507 >>>> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1599be03900000 >>>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=149fd44b900000 >>> >>> Based on the reproducer, this looks like some wireless bug. >>> +net/wireless maintainers. >> >> I don't think so looking at this part of the stacktrace: >> >> [ 51.814941] [] macvlan_common_newlink+0xa15/0x1720 >> [ 51.833542] [] macvtap_newlink+0x128/0x230 >> [ 51.858008] [] rtnl_newlink+0xe5e/0x1780 >> [ 51.925885] [] rtnetlink_rcv_msg+0x22b/0xc20 >> >> Regards, >> Arend > > That's the trace on the oldest release and the bisection was diverged > somewhere midway. > You may see this in the bisection log: > https://syzkaller.appspot.com/text?tag=Log&x=1474aaad900000 > > Initially it crashed with this warning: > all runs: crashed: WARNING in sta_info_insert_rcu > > This function is in net/mac80211/sta_info.c. I see. Thanks for the clarification. It was not really obvious where to dig for information. Regards, Arend --00000000000004ef4505b05d608e Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQTAYJKoZIhvcNAQcCoIIQPTCCEDkCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg2hMIIE6DCCA9CgAwIBAgIOSBtqCRO9gCTKXSLwFPMwDQYJKoZIhvcNAQELBQAwTDEgMB4GA1UE CxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNVBAMT Ckdsb2JhbFNpZ24wHhcNMTYwNjE1MDAwMDAwWhcNMjQwNjE1MDAwMDAwWjBdMQswCQYDVQQGEwJC RTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25h bFNpZ24gMiBDQSAtIFNIQTI1NiAtIEczMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA tpZok2X9LAHsYqMNVL+Ly6RDkaKar7GD8rVtb9nw6tzPFnvXGeOEA4X5xh9wjx9sScVpGR5wkTg1 fgJIXTlrGESmaqXIdPRd9YQ+Yx9xRIIIPu3Jp/bpbiZBKYDJSbr/2Xago7sb9nnfSyjTSnucUcIP ZVChn6hKneVGBI2DT9yyyD3PmCEJmEzA8Y96qT83JmVH2GaPSSbCw0C+Zj1s/zqtKUbwE5zh8uuZ p4vC019QbaIOb8cGlzgvTqGORwK0gwDYpOO6QQdg5d03WvIHwTunnJdoLrfvqUg2vOlpqJmqR+nH 9lHS+bEstsVJtZieU1Pa+3LzfA/4cT7XA/pnwwIDAQABo4IBtTCCAbEwDgYDVR0PAQH/BAQDAgEG MGoGA1UdJQRjMGEGCCsGAQUFBwMCBggrBgEFBQcDBAYIKwYBBQUHAwkGCisGAQQBgjcUAgIGCisG AQQBgjcKAwQGCSsGAQQBgjcVBgYKKwYBBAGCNwoDDAYIKwYBBQUHAwcGCCsGAQUFBwMRMBIGA1Ud EwEB/wQIMAYBAf8CAQAwHQYDVR0OBBYEFGlygmIxZ5VEhXeRgMQENkmdewthMB8GA1UdIwQYMBaA FI/wS3+oLkUkrk1Q+mOai97i3Ru8MD4GCCsGAQUFBwEBBDIwMDAuBggrBgEFBQcwAYYiaHR0cDov L29jc3AyLmdsb2JhbHNpZ24uY29tL3Jvb3RyMzA2BgNVHR8ELzAtMCugKaAnhiVodHRwOi8vY3Js Lmdsb2JhbHNpZ24uY29tL3Jvb3QtcjMuY3JsMGcGA1UdIARgMF4wCwYJKwYBBAGgMgEoMAwGCisG AQQBoDIBKAowQQYJKwYBBAGgMgFfMDQwMgYIKwYBBQUHAgEWJmh0dHBzOi8vd3d3Lmdsb2JhbHNp Z24uY29tL3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQConc0yzHxn4gtQ16VccKNm4iXv 6rS2UzBuhxI3XDPiwihW45O9RZXzWNgVcUzz5IKJFL7+pcxHvesGVII+5r++9eqI9XnEKCILjHr2 DgvjKq5Jmg6bwifybLYbVUoBthnhaFB0WLwSRRhPrt5eGxMw51UmNICi/hSKBKsHhGFSEaJQALZy 4HL0EWduE6ILYAjX6BSXRDtHFeUPddb46f5Hf5rzITGLsn9BIpoOVrgS878O4JnfUWQi29yBfn75 HajifFvPC+uqn+rcVnvrpLgsLOYG/64kWX/FRH8+mhVe+mcSX3xsUpcxK9q9vLTVtroU/yJUmEC4 OcH5dQsbHBqjMIIDXzCCAkegAwIBAgILBAAAAAABIVhTCKIwDQYJKoZIhvcNAQELBQAwTDEgMB4G A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjMxEzARBgNVBAoTCkdsb2JhbFNpZ24xEzARBgNV BAMTCkdsb2JhbFNpZ24wHhcNMDkwMzE4MTAwMDAwWhcNMjkwMzE4MTAwMDAwWjBMMSAwHgYDVQQL ExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMK R2xvYmFsU2lnbjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMwldpB5BngiFvXAg7aE yiie/QV2EcWtiHL8RgJDx7KKnQRfJMsuS+FggkbhUqsMgUdwbN1k0ev1LKMPgj0MK66X17YUhhB5 uzsTgHeMCOFJ0mpiLx9e+pZo34knlTifBtc+ycsmWQ1z3rDI6SYOgxXG71uL0gRgykmmKPZpO/bL yCiR5Z2KYVc3rHQU3HTgOu5yLy6c+9C7v/U9AOEGM+iCK65TpjoWc4zdQQ4gOsC0p6Hpsk+QLjJg 6VfLuQSSaGjlOCZgdbKfd/+RFO+uIEn8rUAVSNECMWEZXriX7613t2Saer9fwRPvm2L7DWzgVGkW qQPabumDk3F2xmmFghcCAwEAAaNCMEAwDgYDVR0PAQH/BAQDAgEGMA8GA1UdEwEB/wQFMAMBAf8w HQYDVR0OBBYEFI/wS3+oLkUkrk1Q+mOai97i3Ru8MA0GCSqGSIb3DQEBCwUAA4IBAQBLQNvAUKr+ yAzv95ZURUm7lgAJQayzE4aGKAczymvmdLm6AC2upArT9fHxD4q/c2dKg8dEe3jgr25sbwMpjjM5 RcOO5LlXbKr8EpbsU8Yt5CRsuZRj+9xTaGdWPoO4zzUhw8lo/s7awlOqzJCK6fBdRoyV3XpYKBov Hd7NADdBj+1EbddTKJd+82cEHhXXipa0095MJ6RMG3NzdvQXmcIfeg7jLQitChws/zyrVQ4PkX42 68NXSb7hLi18YIvDQVETI53O9zJrlAGomecsMx86OyXShkDOOyyGeMlhLxS67ttVb9+E7gUJTb0o 2HLO02JQZR7rkpeDMdmztcpHWD9fMIIFTjCCBDagAwIBAgIMUd5uz4+i70IloyctMA0GCSqGSIb3 DQEBCwUAMF0xCzAJBgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTMwMQYDVQQD EypHbG9iYWxTaWduIFBlcnNvbmFsU2lnbiAyIENBIC0gU0hBMjU2IC0gRzMwHhcNMjAwOTA0MDc1 NDIyWhcNMjIwOTA1MDc1NDIyWjCBlTELMAkGA1UEBhMCSU4xEjAQBgNVBAgTCUthcm5hdGFrYTES MBAGA1UEBxMJQmFuZ2Fsb3JlMRYwFAYDVQQKEw1Ccm9hZGNvbSBJbmMuMRkwFwYDVQQDExBBcmVu ZCBWYW4gU3ByaWVsMSswKQYJKoZIhvcNAQkBFhxhcmVuZC52YW5zcHJpZWxAYnJvYWRjb20uY29t MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqJ64ukMVTPoACllUoR4YapHXMtf3JP4e MniQLw3G3qPYDcmuupakle+cqBUzxXOu9odSBxw7Ww4qooIVjDOuA1VxtYzieKLPmZ0sgvy1RhVR obr58d7/2azKP6wecAiglkT6jZ0by1TbLhuXNFByGxm7iF1Hh/sF3nWKCHMxBtEFrmaKhM1MwCDS j5+GBWrrZ/SNgVS+XqjaQyRg/h3WB95FxduXpYq5p0kWPJZhV4QeyMGSIRzqPwLbKdqIlRhkGxds pra5sIx/TR6gNtLG9MpND9zQt5j42hInkP81vqu9DG8lovoPMuR0JVpFRbPjHZ07cLqqbFMVS/8z 53iSewIDAQABo4IB0zCCAc8wDgYDVR0PAQH/BAQDAgWgMIGeBggrBgEFBQcBAQSBkTCBjjBNBggr BgEFBQcwAoZBaHR0cDovL3NlY3VyZS5nbG9iYWxzaWduLmNvbS9jYWNlcnQvZ3NwZXJzb25hbHNp Z24yc2hhMmczb2NzcC5jcnQwPQYIKwYBBQUHMAGGMWh0dHA6Ly9vY3NwMi5nbG9iYWxzaWduLmNv bS9nc3BlcnNvbmFsc2lnbjJzaGEyZzMwTQYDVR0gBEYwRDBCBgorBgEEAaAyASgKMDQwMgYIKwYB BQUHAgEWJmh0dHBzOi8vd3d3Lmdsb2JhbHNpZ24uY29tL3JlcG9zaXRvcnkvMAkGA1UdEwQCMAAw RAYDVR0fBD0wOzA5oDegNYYzaHR0cDovL2NybC5nbG9iYWxzaWduLmNvbS9nc3BlcnNvbmFsc2ln bjJzaGEyZzMuY3JsMCcGA1UdEQQgMB6BHGFyZW5kLnZhbnNwcmllbEBicm9hZGNvbS5jb20wEwYD VR0lBAwwCgYIKwYBBQUHAwQwHwYDVR0jBBgwFoAUaXKCYjFnlUSFd5GAxAQ2SZ17C2EwHQYDVR0O BBYEFHAaaA+cRo3vYiA6aKVu1bOs4YAYMA0GCSqGSIb3DQEBCwUAA4IBAQCYLdyC8SuyQV6oa5uH kGtqz9FCJC/9gSclQLM8dZLHF3FYX8LlcQg/3Ct5I29YLK3T/r35B2zGljtXqVOIeSEz7sDXfGNy 3dnLIafB1y04e7aR+thVn5Rp1YTF01FUWYbZrixlVuKvjn8vtKC+HhAoDCxvqnqEuA/8Usn7B0/N uOA46oQTLe3kjdIgXWJ29JWVqFUavYdcK0+0zyfeMBCTO6heYABeMP3wzYHfcuFDhqldTCpumqhZ WwHVQUbAn+xLMIQpycIQFoJIGJX4MeaTSMfLNP2w7nP2uLNgIeleF284vS0XVkBXSCgIGylP4SN+ HQYrv7fVCbtp+c7nFvP7MYICbzCCAmsCAQEwbTBdMQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xv YmFsU2lnbiBudi1zYTEzMDEGA1UEAxMqR2xvYmFsU2lnbiBQZXJzb25hbFNpZ24gMiBDQSAtIFNI QTI1NiAtIEczAgxR3m7Pj6LvQiWjJy0wDQYJYIZIAWUDBAIBBQCggdQwLwYJKoZIhvcNAQkEMSIE IJKxpgMRVWjP7P/tCLlgfsaNbHs9svkRGwTCcgYVGQsZMBgGCSqGSIb3DQEJAzELBgkqhkiG9w0B BwEwHAYJKoZIhvcNAQkFMQ8XDTIwMDkyODEwNDYxMlowaQYJKoZIhvcNAQkPMVwwWjALBglghkgB ZQMEASowCwYJYIZIAWUDBAEWMAsGCWCGSAFlAwQBAjAKBggqhkiG9w0DBzALBgkqhkiG9w0BAQow CwYJKoZIhvcNAQEHMAsGCWCGSAFlAwQCATANBgkqhkiG9w0BAQEFAASCAQBOplsBIGZu5Kmfnt/U TQPBPn488czy/LifFMo/tPlRZEsddrl8BOqZxYXrROoJJMIhE54h03oq6W3Cngb7LBYvNAY44RhL dGO7ky7nXnQ/BLzKy9/ZXIG71dNkS8XHmcRuZIOyJw0ekv8ec2GlyLPd3L++vO8+0o6GijLLRkI3 fb1I0g4neiQ3iAq4It4v6W4BEgcGWK3HYcLdiDqidd9tqn9m/g1xpysMHoL7BioMos8UfmL0lAFE JAYaNIBQCTONvDhOTzTeNBkmkbopNacB6rGRlqDrqLCEO6Gq7OoYfvJzDBVnouyeLvBIP6O8CqYu aBVM/WgTXuf8Y1MW8Iv6 --00000000000004ef4505b05d608e--