From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f69.google.com (mail-oo1-f69.google.com [209.85.161.69]) (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 972B435FF58 for ; Mon, 17 Aug 2026 06:02:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786946524; cv=none; b=buA6ZYLeas96v4rCJEXDf8dcpfmu+h+0nmJ+BW6VSG2MzomCFWzR3Iv89OVPW/nEQlqDU9JsNjato914badzSnX8A0d/zKCrR9QqaJFl/uD5hxUT4zZ5Ytr66mXvQqcmCJcA1+Ux0lbUB8hzkQMMKrYjuATPW8Hggh6pvy2VH4w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786946524; c=relaxed/simple; bh=qXmJafGkcN6mwo71Q4S+fqyqawYMUw1tEIBKeZhrCEQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=eiIV0RfB7Sr/fi/EjJ+zsU671R2MkDe/i9iAgDU2I4Wo2e1gF9C97fCu0yMf1g+bBMG7yk6fz5Q3Oz29g+xkbHao1VquhTw1nvPYK00dox9grV4C4wHvhF09AezZSZSsM5Kx9/OWnC+c+OOrTYrY90woXFNUKOYF8dgOjsKAqpw= 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=209.85.161.69 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-oo1-f69.google.com with SMTP id 006d021491bc7-6a17dafd042so252755eaf.2 for ; Sun, 16 Aug 2026 23:02:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786946521; x=1787551321; 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=NvBAJ1wc5C6xZlpPmDjItq5dHkzr0Wm85xmMFTDijQI=; b=V1TKWgWm/VRiGttBEEof/Gb0fpgH0nRmOcjS5m2Ll4claZuq++Ikt3440oYPnYBKOX is6lzRUX+5gXVSe6l+YozcT+bmNnSsa4N293qOVImKxOex/vBfXui4QRDoNRV+mRrOuw zbhH/UMfTf6gmLrOGJCX846JAAgGRF4UlvOwQLsnyx1WEIFym6lRlVF3pRQBubtpudHp 8RA6KF5JyeSBzcy9Of215U9DSAvjyhl289InWqKDjeavVF0Cc0/2fGIMVfvFy+Qemw9x yUhv0qTKvKQ6pWcpPEepQzxZyPYxd1FpDYn+nT07ocmN2QvfP9E6HUPBU5KhlT9vMF9l w93w== X-Forwarded-Encrypted: i=1; AHgh+RqJywizygA5GRWWwBIAGO0HFA/vrvrEOumNUcpE5LzqpzsKhGNwvVaSTaJ/QrGbLLUSSnavYmg=@vger.kernel.org X-Gm-Message-State: AOJu0YwRI8VVC6coB8sVAcD7tbJvlKIbLrZEEwHgDA7v+mYY0sofIau4 2bt5ohRYL7RANIFwFjaG43GEaHT8RRHt3RHF66e5sjlpal5rnCuiCAt5QRseZzJ15sdd8sAGt7b G37Q0jnfwGGjJFxlNYVWzf0yzy/AH8ZO04aVObYA4iRWo9D/FONmLxfBrnQk= Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:c98:b0:6b1:30e:75ea with SMTP id 006d021491bc7-6b1030e8361mr8279011eaf.16.1786946521575; Sun, 16 Aug 2026 23:02:01 -0700 (PDT) Date: Sun, 16 Aug 2026 23:02:01 -0700 In-Reply-To: <20260817072146.313493-1-junjie.cao@linux.dev> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a82a3d9.f7a79266.2f965f.001f.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in exit_to_user_mode_loop From: syzbot To: hdanton@sina.com, junjie.cao@linux.dev, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+2642f347f7309b4880dc@syzkaller.appspotmail.com Tested-by: syzbot+2642f347f7309b4880dc@syzkaller.appspotmail.com Tested on: commit: 24ef02f9 net: page_pool: fix UAF in __page_pool_releas.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git console output: https://syzkaller.appspot.com/x/log.txt?x=15742679580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d07fbc6821d72a61 dashboard link: https://syzkaller.appspot.com/bug?extid=2642f347f7309b4880dc compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=16b1ea25580000 Note: testing is done by a robot and is best-effort only.