From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 213641FECA3 for ; Sun, 23 Mar 2025 06:53:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742712785; cv=none; b=ivU7qEqwPHU3l6hOjWcmO+cMeEd/xvqDp7olxOQy+OgQD2gPK7G4CBGUxNqnH0hHhjsQEBQXpPHn16/wTAO+jiwkHY1UfODtezy9BlWkVq2XPWMwnYJ+SJCrxi1hJSG0nPYrnv7tZYh+tNvVBEehWfSYL5e1jNnyQDPmLTMsf5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742712785; c=relaxed/simple; bh=Bf7yka2w1VVpUuX6J7h+vWCKWalB2ArNcjPpVEqVGZc=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=eKiW2cSTnmxxjZ+Q+E/HmFl0MyEYx4NhdB96XA44Y25mHNXFXbTKevoG4r+39fHdA7eiPA6IpEMMdyWJ7u9orEKf6UyyFqaWu30ekh5Y4qrxp7qmDwxdU76U4R5epbbX9AVJOw3PQOfYpgcee7jbL6cQon2qzOTP2Ky5PwnzW4E= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-85b5a7981ccso263852739f.2 for ; Sat, 22 Mar 2025 23:53:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742712783; x=1743317583; 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=uuTtDdQllfqVQdTnY1GFjo08/XepPL02PHTKNSl5Nyk=; b=iAsf07EY+Y+X8JKxsRt6EB+ghJkGEq+HIwnoDzOO/6mLCTvwPzBPJ0xT4QmFz9zXZ6 HNWcukCvybYoybb+8vzR6f67oUjk71tBVFXRWCY02WmoNYYvrJokB6+ieWVusUf+G9V7 bn/bbXjLW9ZpCjLF3kWf+mzSZaZ0NZFYb5LXCmHD+vHByws3gwYNEqIU3S+ilcXnglZu AddUxx/bZQtnPwMgPrvzIVL1dh0mIHVVMVSTCGC4rKfn+6KsPV/b+EpmuNoSvZZQG6jh ZWxk7EUxyiPm8Q3fuw9tTPiW4rg05H4/o3jwwU52yXZX4Any8SgtbeNqfHTeInWhNLPY hgwg== X-Forwarded-Encrypted: i=1; AJvYcCUy5OKU+VBuLzm6ij6N6Q3+l04CTlzDSHQHK25ZOaeJCI7XHXl9AxWoMdxEh5zqKym7IC1JH3Gufjoz@vger.kernel.org X-Gm-Message-State: AOJu0Yxh3RdF9U9WBBtV6TddauA/pyzBik/tb7TofrPH2BccxxFYF5ha IjjM2P6YaXmbkMrvjeyO0/Cnk73TbzX3XBbcUxLcD9O1YJ0/BzUgsBhL1y7czOmY6W85+7x9XvF iRRPL/foRZXf1g48iV9HPV6c4Wk0iqTbN3JOW6+7TYqlzMI8gjWXV4Yo= X-Google-Smtp-Source: AGHT+IFomXej1RrN6WELV4Qii9/yxfjxlWnmlmMb+ysYA1j31F3Z04e+3d3vMyCUXzjVvvz9y1wv7XB/R6rxL+wT2R6HvXmksUMF Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:378c:b0:3d3:cdb0:a227 with SMTP id e9e14a558f8ab-3d5960f4d68mr77368565ab.9.1742712783188; Sat, 22 Mar 2025 23:53:03 -0700 (PDT) Date: Sat, 22 Mar 2025 23:53:03 -0700 In-Reply-To: <6707499c.050a0220.1139e6.0017.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67dfafcf.050a0220.31a16b.0058.GAE@google.com> Subject: Re: [syzbot] [net] INFO: rcu detected stall in sys_getdents64 From: syzbot To: apparmor-owner@lists.ubuntu.com, apparmor@lists.ubuntu.com, edumazet@google.com, jmorris@namei.org, john.johansen@canonical.com, john@apparmor.net, kuba@kernel.org, kuniyu@amazon.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org, paul@paul-moore.com, penguin-kernel@i-love.sakura.ne.jp, razor@blackwall.org, serge@hallyn.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit e759e1e4a4bd2926d082afe56046a90224433a31 Author: Eric Dumazet Date: Wed Jan 29 14:27:26 2025 +0000 net: revert RTNL changes in unregister_netdevice_many_notify() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1084f004580000 start commit: fc20a3e57247 Merge tag 'for-linus-6.12a-rc2-tag' of git://.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=ba92623fdea824c9 dashboard link: https://syzkaller.appspot.com/bug?extid=17bc8c5157022e18da8b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=135f7d27980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1483b380580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: net: revert RTNL changes in unregister_netdevice_many_notify() For information about bisection process see: https://goo.gl/tpsmEJ#bisection