From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vrp-mailer.hetzner-cloud.de (static.103.213.156.178.clients.your-server.de [178.156.213.103]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0F3EA3A5E96 for ; Wed, 18 Mar 2026 15:24:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.156.213.103 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773847470; cv=none; b=mxgIS/LDWU4dh3W4qAe84cr6BLEs586F9KSdLxPlBvJUY+Eh+ELwbKz9TdT5WaFK62u5lD2I3dXp8XHtXh+2kOCghzhafW4neRY6ftuIt8QN8lfWupo+yX23vgx3N0ZeDgBzI4Bp3C42ZTfENpWzbvlJor5gHtLYzPfxVizlk8E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773847470; c=relaxed/simple; bh=ga3xus3P17GyvOgxBhDF7MBecltx0wsOoBH/PFD9IMw=; h=From:To:Cc:Subject:Date:Message-ID:Content-Type:MIME-Version; b=V/YlPE8P7hO3Zj9YsvU0KJBQxO+zg2c964UbaoVaIAMm1eYqdhg6E4lHhLGnU7/l6k9JsS+Xua+dfRBG9ioxUzgsfASAx388Qc0+ZDqFFwoCWvDhwA8zVQmurxUmGnRBzaR5BFs42Kc+gRMT8RmKu8Q70r+WsFzLYNET4utESz8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com; spf=fail smtp.mailfrom=gmail.com; arc=none smtp.client-ip=178.156.213.103 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=gmail.com Received: from [127.0.1.1] (localhost [IPv6:::1]) by vrp-mailer.hetzner-cloud.de (Postfix) with ESMTP id B50963E6B1; Wed, 18 Mar 2026 15:23:54 +0000 (UTC) From: davidkrehwinkel@gmail.com To: linux-kernel@vger.kernel.org Cc: syzbot+dd764a450d93885d847f@syzkaller.appspotmail.com Subject: Re: [syzbot] possible deadlock in kernfs_link_sibling (2) Date: Wed, 18 Mar 2026 15:23:54 +0000 Message-ID: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Authorized security test for Google VRP issue 486558653. This demonstrates stored XSS via crafted Message-ID in link(). syzbot+dd764a450d93885d847f@syzkaller.appspotmail.com https://syzkaller.appspot.com/bug?extid=dd764a450d93885d847f