From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 6C5361991CC for ; Tue, 30 Jul 2024 12:02:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722340953; cv=none; b=oANtBhpUJbQtNQOLrQkItjdW/FaJwI8VWr25/eeecEVrWqjNS/1vj+ZgDqiHG7szYajr68Gga0ictUKvZppctfeg39XxDl8rJvVrofp+lPWVMPukNgTTwrXEEZRi3R4Ar2XdHNyX7oP9G03NoqbqAk3n0mYZEH6cmf2lfYIE1Is= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722340953; c=relaxed/simple; bh=Dni9mzsdk3z8ttQfg40ozZbiPry1CG2bm0J6Cth08FY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=hSZmEwXGSlmTdWfP10QCunzSaLBcVaEPBOc+XQ/JEcOLZo2UtIQPyjBphJEw8Uoa0m3m/jRiRHPyOioAtP2JhvvApQCtJtcuPtBbdRUOJ5IF0bFrSPQZPcLMlr7mPQ08T0qUKyKVimXMe45kWhfyaLcbzIesTsF4UeELCNq2neQ= 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=209.85.166.199 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-il1-f199.google.com with SMTP id e9e14a558f8ab-39a29e7099dso73079275ab.3 for ; Tue, 30 Jul 2024 05:02:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722340950; x=1722945750; 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=7UVRLoW76axzmR9JNfwOSYbdYDTeDFhUwYH4fPWEeCE=; b=dxkIsKcnvdHYmRES1Q5gEI4y9hNNlI+K2+o5enZqNfoUAtesbuZNLz7+a96XcBexDr OkuCo+2KfuDulw3z7zH6ZZtzSZAE+mOligac3YHJktgsPC/7uctCog9z4W7O2G+OPu3B /A867HFBdHSNOZ86O2DOXaVWK+SgO5vHLApVvfwaQ5AoD4FUTaEihP1OCLhBTM+HYIAn CQUhhfVRLma+xUinCMsp/79JTeYnX5lAIRUlBuFUQL2D9XuPJTd+xTA6/1BTmaUgCsV5 oW2l1i/sel6P3vKMTHTvgrxohc+/9lw08Ts64LesOaL7IxNhaW1dO31VHjswpy5Y6Mjc 7dLg== X-Gm-Message-State: AOJu0Yy9/5HbojpF4nYgffkqk507xJqmMa0zJ5608bgolXu9aPoFrsfu 2XxnjkbEzklYb7JE58euVMpkERAXu8ypkLcvXS3srqAUV7m4MFMgFJ4os9q2baMtkyVZvNDtxbN 0BUyA3wRqVRY/ognGINWn/CljhkUmZLr7zsFnFfMrQXJadIXlTTOaRtE= X-Google-Smtp-Source: AGHT+IGKXo35uDYUI/+NR/jwpGWQ1PrLiKPEK55w3We/D34CGoHfZJQ6dson7ecbqGGyLoTYb2EweiRuqPpQBLoq7yrhBYCrwIBa 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:b22:b0:397:35d4:3811 with SMTP id e9e14a558f8ab-39aec40159amr8959635ab.3.1722340950412; Tue, 30 Jul 2024 05:02:30 -0700 (PDT) Date: Tue, 30 Jul 2024 05:02:30 -0700 In-Reply-To: <0000000000004da3b0061808451e@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000881e74061e75c047@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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index ab1935a4aa2c..056889eff6b1 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -2947,7 +2947,7 @@ static void team_port_change_check(struct team_port *port, bool linkup) { struct team *team = port->team; - mutex_lock(&team->lock); + mutex_lock_nested(&team->lock, 1); __team_port_change_check(port, linkup); mutex_unlock(&team->lock); } --