From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f70.google.com (mail-oo1-f70.google.com [209.85.161.70]) (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 A08AE3A7F40 for ; Mon, 17 Aug 2026 06:02:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786946525; cv=none; b=Hhvev9m1hEo3wjgvfIVYXW70gGQDuC6UGDWcHZ8OqtjLRKO6HUL6IJk+nXe6kCJAC9MO5MOXe/cFFSwZi+TLdJLmTKtOluOpUiQ5bY+5wKtkJisLb+Aj7cviqxgxVV8+kUjULPdeeFEVtvqRJQGEn2iqJao/4i87VfZMPtBH7mM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786946525; c=relaxed/simple; bh=qXmJafGkcN6mwo71Q4S+fqyqawYMUw1tEIBKeZhrCEQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=pd+2ETyQz1/HL7kGJgTrVLFivHC4X9L464XfyxfFZSOFdYgczOKfpmm0WSG1l6I+aTRU+fHxYqVlGA9cV/MIHO8FsYRSUq9Jzj3+e+QdXCHZE5KN1sf4IqJFMO7XryBDFl9LaoOeJ7jZ28N5aAVV2eYPf5pJ++lW1+64JguwZP0= 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=209.85.161.70 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-f70.google.com with SMTP id 006d021491bc7-6acaccb8b0cso241836eaf.0 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=NRIf+fOoEmFgJSLGNd1lapQ8RV1g64cAeUYy52ZnJo7rlYWI/H0RbyHqHF8EM2yNFm 76+jMqTjhLRiHdUKig400B6YbV6cCVGegc00NIwJbezW2ARubnZvQeYPTXcYPIsR0Fwj t/Yqx7UxtMwhOhFHrxUa0HVDSd3jxFimjK80+UIatvVk+DbmXkcRvv8rXTuZqku6UBd8 zRtwL2q4pCayfflO6y8HkRtk4+xiuGjGsdencQXIPpYdsTK359tN1ytwqcGkNdpG4SUA kEAa7FJHVn+ycd8Za83+BcXtR4umXEVFQ1C5afBsWqw5lAgTocaraQQtuT5y8FjIXtPp v6Lg== X-Forwarded-Encrypted: i=1; AHgh+Rre33Hg5/jPsGyqhVdX9UOZKrFMP0rIpVxKAhwDjRu8DRVh4tidDh3+kTQ0RES36I5x2E7nqPkSieUn6tw=@vger.kernel.org X-Gm-Message-State: AOJu0YwdAdA8XUezcYgOLle+GONZ26Ev0GPzBjY36FRidjWC0Ubqori9 wULnJmWk2apV6CQdRzaTJ/NaHXnXm+WcqpMKJoD8BCaa2AyAb3W3aA9yvyy/C9Uv7EMt5QkM9ZM 0CuToawX4XbF6/lXPwfk8YoNFiU8uu50ZYQeS6vdHZldho2WlbMa3zzZnNeo= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820: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.