From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B6CFDDAB for ; Wed, 31 Jul 2024 14:16:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722435421; cv=none; b=ULJg2OXegRUVncvp/77a3l7VvxjWtRGchwjZ4E9bcRVYeFd3iSEY1Du5231KaXlmQ/e8BpYyFeouvQIvSLdDxAB4bRiT9JfrZMWt4sJKyWBL5lW1RMVCCjDj+0KOxfJVGxB9EJ4g6UBv8FrZKd0xlGf57+1BpKN5XseLxgYSUL8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722435421; c=relaxed/simple; bh=+xTrRYfQlCSnNEUwg9GKxV31hp7OwlLBV0+oKyHJcMA=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=kIUk3V8rWLd1tVHzxMOB3SrmeV8kDfD5LtReBNoQhiulbAg6ggnBErRe5+s6glatwKsFnIQxg0OCzZKyW+GYvulVLs1Mo+gIzlPChRMBDq6Nxdwr5upr2edzEDX26Gz0unqm/kFrjU/Uyi5XA/kMHhZdVa30r27sQtaYcEWa4po= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-81f87561de0so876184439f.1 for ; Wed, 31 Jul 2024 07:16:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722435419; x=1723040219; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=3e+/SqpCAfiNvWpP2QlCaGcZFqSEbO2bmkn8qZK2aTg=; b=dgIHLMo++dHkFf5bYtOzY5Re3FZnZ5tF6PgV6OocHN2IFflBDQWFW7hKejQCBIe7Ct Fvm0BqagnPrtXtRDnlu7w+vmFWpMp8RtbUCIkri6Kluc5C4C/bWLYBMk+MFw9lBCCaw6 +CnvosTOjSkxqtdz5eRsPPXgeAEJ/ZoaQC/a6Rix1Y4a9GOYEW5O2Lpe9qEhvn1w9KPG FdTUXaj4YextUHsqw7XfpKSP9nowXnSB6xHrKvTsIbNtc6DSlGYz/wTARd0JlriQ2z5Y P5PMgphc7XNuGU/jHuKqFn1ybSZGXbE6LJ/IzukEzHj4j7e9s0ov3uKLNq92hNOG05a5 BdUg== X-Gm-Message-State: AOJu0YwMv7oEZmEmX4IE9nbfvmu39a6z5oAqENqZr11V2Ir+FBhe7Miq BNxVm+SgE3Cr/jguwVfAJbROO/Ktb/Plv/giisEm0FDnruCNPG4PkjkPJV0tr+aXrQeEYjzherc opZ3o737ov9EZpJa+whobKeauCcIABGh2rB3npDbibIilL0MxJrr/BLg= X-Google-Smtp-Source: AGHT+IH9mfUT5Uq49YvHmg+nX7sKUyzwuy61Bfoh+qdRja6GUKa8/ijt9xAWpygqRim1O6QcfkImmuI3XmlqDQiCWAEQQd0pmH62 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1546:b0:398:3831:4337 with SMTP id e9e14a558f8ab-39aec427281mr9697155ab.5.1722435419228; Wed, 31 Jul 2024 07:16:59 -0700 (PDT) Date: Wed, 31 Jul 2024 07:16:59 -0700 In-Reply-To: <0000000000004da3b0061808451e@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004fe2ca061e8bbfb1@google.com> Subject: Re: [syzbot] Re: [syzbot] [net?] possible deadlock in team_device_event (3) From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [net?] possible deadlock in team_device_event (3) Author: aha310510@gmail.com #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --- drivers/net/team/team_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index ab1935a4aa2c..ee595c3c6624 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -1212,8 +1212,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev, portname); goto err_port_enter; } - + mutex_unlock(&team->lock); err = dev_open(port_dev, extack); + mutex_lock(&team->lock); if (err) { netdev_dbg(dev, "Device %s opening failed\n", portname); --