From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from forward501b.mail.yandex.net (forward501b.mail.yandex.net [178.154.239.145]) (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 084781C8FB3; Wed, 13 Nov 2024 10:36:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.145 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731494181; cv=none; b=NsNVJ9u9I33ZfCqeKWD96PBQFHZjO3bCtrDZqdjEn6dvAn+P9eY+IqSngZL3PAAdyr8UWsKQaKaGJCSW2QpP4Ia8bUzBMkOruCICLngEqGBhUdd6ytddscl8mc4L0SiSqcIc+h0M+SMtNVKV1aqFtFyA/sa0TpEtfClTi2TYlk8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731494181; c=relaxed/simple; bh=XkTIs7nu4bLDcQiU5a9HztKYuqyVNXyBCU1tsEqpHA8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=It0HbAhUshFPnEbolKO48e8iCnzskasAgiLS/ZGjXdiG+aoRN144DwMr/IEp/b7yf1bvQUZTLueQZFv0FZ9CqB+2Q2akA4hYR17qCIrACJi9KSHzEDqxXmIdbeBV3mUBAZNp/BZrHk+/XeG5veL6T0jX3bIUmwcC/fDGu6bGyUc= ARC-Authentication-Results:i=1; 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a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1731493798; bh=+cXUpe34/1kdGa6zXYoByQOZBAwAbSaDWTGSuPHsosY=; h=In-Reply-To:To:From:Cc:Date:References:Subject:Message-ID; b=ncQAHZ1vGLgEv0GiuJj4jHUvB7Oirh3rh8jmyzWiosC/lpFJdOy69f7DZGYaQGOm5 fCZ04tSJZPXOjF2yO1Akm7GbFOROt9x0IzCDWX6wVdU3bry6twML466CBLQ0/0hGCG 3ziNnurxFbUQOVgfhDYvWemNOZ4QkX2zkUUVvl4Y= Authentication-Results: mail-nwsmtp-smtp-production-main-60.sas.yp-c.yandex.net; dkim=pass header.i=@yandex.ru Message-ID: <6ff1052f-76d5-42a4-bf0c-ec587ca4faa4@yandex.ru> Date: Wed, 13 Nov 2024 13:29:55 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mac802154: add a check for slave data list before delete Content-Language: en-MW To: Lizhi Xu , miquel.raynal@bootlin.com Cc: alex.aring@gmail.com, davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wpan@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, stefan@datenfreihafen.org, syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com, syzkaller-bugs@googlegroups.com References: <87a5e4u35q.fsf@bootlin.com> <20241112134145.959501-1-lizhi.xu@windriver.com> From: Dmitry Antipov Autocrypt: addr=dmantipov@yandex.ru; keydata= xsDNBGBYjL8BDAC1iFIjCNMSvYkyi04ln+5sTl5TCU9O5Ot/kaKKCstLq3TZ1zwsyeqF7S/q vBVSmkWHQaj80BlT/1m7BnFECMNV0M72+cTGfrX8edesMSzv/id+M+oe0adUeA07bBc2Rq2V YD88b1WgIkACQZVFCo+y7zXY64cZnf+NnI3jCPRfCKOFVwtj4OfkGZfcDAVAtxZCaksBpTHA tf24ay2PmV6q/QN+3IS9ZbHBs6maC1BQe6clFmpGMTvINJ032oN0Lm5ZkpNN+Xcp9393W34y v3aYT/OuT9eCbOxmjgMcXuERCMok72uqdhM8zkZlV85LRdW/Vy99u9gnu8Bm9UZrKTL94erm 0A9LSI/6BLa1Qzvgwkyd2h1r6f2MVmy71/csplvaDTAqlF/4iA4TS0icC0iXDyD+Oh3EfvgP iEc0OAnNps/SrDWUdZbJpLtxDrSl/jXEvFW7KkW5nfYoXzjfrdb89/m7o1HozGr1ArnsMhQC Uo/HlX4pPHWqEAFKJ5HEa/0AEQEAAc0kRG1pdHJ5IEFudGlwb3YgPGRtYW50aXBvdkB5YW5k ZXgucnU+wsEJBBMBCAAzFiEEgi6CDXNWvLfa6d7RtgcLSrzur7cFAmYEXUsCGwMFCwkIBwIG FQgJCgsCBRYCAwEAAAoJELYHC0q87q+3ghQL/10U/CvLStTGIgjRmux9wiSmGtBa/dUHqsp1 W+HhGrxkGvLheJ7KHiva3qBT++ROHZxpIlwIU4g1s6y3bqXqLFMMmfH1A+Ldqg1qCBj4zYPG lzgMp2Fjc+hD1oC7k7xqxemrMPstYQKPmA9VZo4w3+97vvnwDNO7iX3r0QFRc9u19MW36wq8 6Yq/EPTWneEDaWFIVPDvrtIOwsLJ4Bu8v2l+ejPNsEslBQv8YFKnWZHaH3o+9ccAcgpkWFJg Ztj7u1NmXQF2HdTVvYd2SdzuJTh3Zwm/n6Sw1czxGepbuUbHdXTkMCpJzhYy18M9vvDtcx67 10qEpJbe228ltWvaLYfHfiJQ5FlwqNU7uWYTKfaE+6Qs0fmHbX2Wlm6/Mp3YYL711v28b+lp 9FzPDFqVPfVm78KyjW6PcdFsKu40GNFo8gFW9e8D9vwZPJsUniQhnsGF+zBKPeHi/Sb0DtBt enocJIyYt/eAY2hGOOvRLDZbGxtOKbARRwY4id6MO4EuSs7AzQRgWIzAAQwAyZj14kk+OmXz TpV9tkUqDGDseykicFMrEE9JTdSO7fiEE4Al86IPhITKRCrjsBdQ5QnmYXcnr3/9i2RFI0Q7 Evp0gD242jAJYgnCMXQXvWdfC55HyppWazwybDiyufW/CV3gmiiiJtUj3d8r8q6laXMOGky3 7sRlv1UvjGyjwOxY6hBpB2oXdbpssqFOAgEw66zL54pazMOQ6g1fWmvQhUh0TpKjJZRGF/si b/ifBFHA/RQfAlP/jCsgnX57EOP3ALNwQqdsd5Nm1vxPqDOtKgo7e0qx3sNyk05FFR+f9px6 eDbjE3dYfsicZd+aUOpa35EuOPXS0MC4b8SnTB6OW+pmEu/wNzWJ0vvvxX8afgPglUQELheY +/bH25DnwBnWdlp45DZlz/LdancQdiRuCU77hC4fnntk2aClJh7L9Mh4J3QpBp3dh+vHyESF dWo5idUSNmWoPwLSYQ/evKynzeODU/afzOrDnUBEyyyPTknDxvBQZLv0q3vT0UiqcaL7ABEB AAHCwPYEGAEIACAWIQSCLoINc1a8t9rp3tG2BwtKvO6vtwUCZgRdSwIbDAAKCRC2BwtKvO6v t9sFC/9Ga7SI4CaIqfkye1EF7q3pe+DOr4NsdsDxnPiQuG39XmpmJdgNI139TqroU5VD7dyy 24YjLTH6uo0+dcj0oeAk5HEY7LvzQ8re6q/omOi3V0NVhezdgJdiTgL0ednRxRRwNDpXc2Zg kg76mm52BoJXC7Kd/l5QrdV8Gq5WJbLA9Kf0pTr1QEf44bVR0bajW+0Lgyb7w4zmaIagrIdZ fwuYZWso3Ah/yl6v1//KP2ppnG0d9FGgO9iz576KQZjsMmQOM7KYAbkVPkZ3lyRJnukrW6jC bdrQgBsPubep/g9Ulhkn45krX5vMbP3wp1mJSuNrACQFbpJW3t0Da4DfAFyTttltVntr/ljX 5TXWnMCmaYHDS/lP20obHMHW1MCItEYSIn0c5DaAIfD+IWAg8gn7n5NwrMj0iBrIVHBa5mRp KkzhwiUObL7NO2cnjzTQgAVUGt0MSN2YfJwmSWjKH6uppQ7bo4Z+ZEOToeBsl6waJnjCL38v A/UwwXBRuvydGV0= In-Reply-To: <20241112134145.959501-1-lizhi.xu@windriver.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/12/24 4:41 PM, Lizhi Xu wrote: > mutex_lock(&sdata->local->iflist_mtx); > + if (list_empty(&sdata->local->interfaces)) { > + mutex_unlock(&sdata->local->iflist_mtx); > + return; > + } > list_del_rcu(&sdata->list); > mutex_unlock(&sdata->local->iflist_mtx); Note https://syzkaller.appspot.com/text?tag=ReproC&x=12a9f740580000 makes an attempt to connect the only device. How this is expected to work if there are more than one device? Dmitry