From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.167.198 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794396786; b=u7cyJfQ3xuWkc+TN4q0eUURxC2/UEwirPLCFWuZpHqqa539RGhk2ee665HmGDB7VOOaw ix7QxVnajUuVXt1CbgYQ9mYB5/OtOxxLnC/WY8uc7Vs2YisXbpofjzCp9N1ungaadkakO d29l2c9QLHtH72X2yMmJzuZmyHu9K8spiTRUPtscyGLao7moY4BDf+PG/rWGv5ltBDUGI dIsIWZ2yIEPiyOHU6T32NYAGBvFUSY1rVUUnhiQcHZTVJYissJwclNT+DiVUk8lagzIiA OJLwsZoWF+o18sCuDB+azHawLC0mM/EmLF4eCT1vq6T+AMr5L/QjNZn7x40xtxwY1lw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794396786; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Gm-Message-State: MIME-Version:X-Received:Date:In-Reply-To:X-Google-Appengine-App-Id: X-Google-Appengine-App-Id-Alias:Message-ID:Subject:From:To: Content-Type; bh=BXsr/+1p9fxgColISzPBBJRbo8sq11cmjfCOw5v9SVY=; b=oKhciVk9Xarj+gYH+fYeM432cCQKiUE5Tn25WWAlgr1Uhfx43lB+MDDi++5He7UulX9J w71P/L9UCG1bNPK9X6DcZbrcDw8jOMkLNzpZa8vud8v5EqFaeLdTf0tejDL4CrpHrOcKx 3y5S8ihWEJaaxfH5M3xEDu14d5i0oY305PecUwIQRNKbg2I70tF3bjxlB0m8YreAtwudC qJkQ4QxJIELCb1NdvS/Z9GnX2ylC6G307IOOlh3PHv1JuodmNmMiVRA8l1EnzgCy8MLt2 WWOUOzBQEOuAIl1p/Iuy8cmy7DGVmipMpO3QKDWgcwybLs5bWfBIjCSHMMAxrCUu6og== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.167.198 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7CE2606A32D for ; Wed, 11 Nov 2026 11:33:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org B7CE2606A32D Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-4b2d1eb484aso3845353b6e.2 for ; Wed, 11 Nov 2026 03:33:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794396785; x=1795001585; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=BXsr/+1p9fxgColISzPBBJRbo8sq11cmjfCOw5v9SVY=; b=WrWKlPQzdmqL//jx/DPGw//kOLeWhYb2c18cgqXGAu0XUbwiw6/Fj6H0jfOlmkKN4I 9pKBtEbLsFecuBVTjl14qM7pGVwbqPlnplYt2OUtUJ2KZHHvAblgFwUbbkB5ncrh1koO TWE+pcrGZeYCxlhTh5w8ZAdPqJJrCGQKEsgHo1ck/CbsVKRmrQqiuZ5IdfC1GhHyMPFn K911ZOBKYd8UZewTSHUsE0tSA+wMw10fZs14ySg8BCOc2nUPrGkY23pLWVl855nU6eQ+ CGyLdEnGq1smZbUgvndjEF0ddxmnZv0971TeKF+TaHSTG96ckxzFVLniAmVnorZBIwhP rNuw== X-Gm-Message-State: APuU4Z9v+PCUBZB2WmlNG/gbGUc9ufzpVgFUpUm1We/y9sVSOy5qDiy2 Z1xtxXDITeMbjK9gS1iRKU3ZrJ3q6dYb/TPAQMgSwFT+5SDQ7h/PpYi2ux+KcTTvxE/Y5NbuC6/ rLLfhfKuYP9ZxDCqnW+FDw+HxzIVpmcZddBlONVGw63utkNJYQ61iNMnAnNE= X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:2387:b0:568:1e54:3d74 with SMTP id 5614622812f47-56b97613496mr1617778b6e.39.1794396784855; Wed, 11 Nov 2026 03:33:04 -0800 (PST) Date: Wed, 11 Nov 2026 03:33:04 -0800 In-Reply-To: <6aece79e.382bd2ce.33e041.0001.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6af45270.115d70e6.153fc3.3818.GAE@google.com> Subject: Forwarded: [PATCH] nbd: test cpu_hotplug_lock deadlock fix From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: [PATCH] nbd: test cpu_hotplug_lock deadlock fix Author: timo.joannin@gmail.com #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master nbd: test cpu_hotplug_lock deadlock fix --- drivers/block/nbd.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 5112e3a03027..99b129eea598 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1357,6 +1357,8 @@ static int nbd_genl_reconnect_sock_cb(struct nbd_device *nbd, unsigned long arg) if (!sock) return err; + nbd_reclassify_socket(sock) + args = kzalloc_obj(*args); if (!args) { sockfd_put(sock); -- 2.56.0