From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out162-62-57-137.mail.qq.com (out162-62-57-137.mail.qq.com [162.62.57.137]) (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 0BD8E186A for ; Sat, 4 Jan 2025 05:18:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.62.57.137 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735967916; cv=none; b=fv8SKDNjp/g8ri4HAyd5EIwzBtgTaNvBN08Aut+sYS0PIMmcJnXiTyfqn7bRt/lF95Eu72JAM9eV1Ef1ga7P4nWAtoAVg7TY0AJNiknZJQg24sDihg599k4rldjno57D//qEO3DpckjIMb0MshBldaHY0RkCukKLlmPZXLXt9hg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735967916; c=relaxed/simple; bh=z4g6g762edN/mF1Jwy0hWnzRwdiwoG9LiGJsSDL/hWc=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=Urh3KGLIOkh7+WaBtgqsQCFz8j5nMhx+ifqS4hOdHtXlLNXKJzSfUT6ogpVHUvb8NP5ciAXg0DNMXoPuDDewYQvKvgR+GK3qSItH4a//vkVXm8P0enK2YypXGYh9jcFgzXi1i4ANddO6sZv4lSQXY4nNED7moRxMF1k62fYdMN8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=HrmuB0CJ; arc=none smtp.client-ip=162.62.57.137 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="HrmuB0CJ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1735967907; bh=z4g6g762edN/mF1Jwy0hWnzRwdiwoG9LiGJsSDL/hWc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HrmuB0CJdLY6fmEcgp/P5JxXZf+U8hCnNMM44F5uFUvKpBat68jauG3c3DabpjhLA teB+x2f1i6DoNJNMJbdMtzdmhB3CLUjQ5Mb/x/PruM0UIaBYBSBTce1MvOJPO/fj8c e/Feh2dC/9R6IK7qGquEgPNKzvRFQ83G+qRZ/t/k= Received: from pek-lxu-l1.wrs.com ([114.244.57.34]) by newxmesmtplogicsvrszb16-1.qq.com (NewEsmtp) with SMTP id 3160C694; Sat, 04 Jan 2025 13:12:22 +0800 X-QQ-mid: xmsmtpt1735967542tbmsi9j5r Message-ID: X-QQ-XMAILINFO: N26DAMVpW7UEnXcEpmCRfAY9YUKZNZ3O7xeoVll6MyOBA12d6y/Cz6lP/l/Pqc 4M9EXlN0hLSQLFf59HLfBR8K4nfuAN01nFK+nLW13r85kPbJfb72FJbcrgY+QrHrSyPRAK+KrVFD 3zablJcJEbzFoULxid/sFJbWVg53H1w2YiEgeXubUbw/UxOqyGBYxh0oys97bjJdwYf1Xhmjn2oz eGOtGWIR88HZeJPZU/l5Kj7Ll6kR5b1kub7IZKQv6lvAwPdMJ7TvD15+QruesJRreB2AizfoGPIp O1EWVSiBy/6NwnLtfT9bhagQrXyqpUkvx03cgebR7F3OeqeSJuYhjPuK6PoDi9bHJSWMpup0d4b/ G8T93z7qMEpttUztrIj9rmJUm+drIuLc9EjaNKBfsSAIhtPAQJBcsx6mBIt899Oi9FG3KiVqEJeZ w/5VHCXjE+dzSNrRF/1VcTEkyt7WzBeip6iiK+hnky536OklcczdtO14NKNIyH3mXbMPKbFsodjY RMQyODH+jMrO4c3qC94rwa1nrzeFhdVS1p6frfz2Ui264ujnJXz1IcfrHpxL5OfTidJLdRhxhVSt MsTGxr9LkUxylAwtkZBWNwD/fAgLvibcWg3ognPXTzm+CFI7Q9ZliMnw6245Qn1H/sQA0x403eb/ XeuenCnx8QuILpvc8V04nKFMlHKLV6UnvxLjHqhg1ym2s8PE2l4yrhUhDj2o1cnLeC+n/LNExUZC jxLEMebLDxXBg3vJ2uvuxtfeJS84wXR6vByU9hroGGHrIyl8XJvpgMEsRU9R+PUhpwb1twzPdg/E K3F6QgW0+iTQhlRkaKxqFrrgYlZ5hHd2onwVgn3y3yvDA/KAuC8HoI+vqLBHqD+HH5OoMnjxwbhI aHEF1ymJi7BkaP5Foz845yuUToSgtIJg2VjoB2m0VyVODWz1jiTpi3hfvf/VcML4sYms8kbh5qO0 bwq4c1q0qZJ7V36YTyCZgYIuLTrFZDkb+lWXaQgfU= X-QQ-XMRINFO: Nq+8W0+stu50PRdwbJxPCL0= From: Edward Adam Davis To: syzbot+2e65930fda17880da336@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [kernel?] general protection fault in proc_sys_call_handler Date: Sat, 4 Jan 2025 13:12:22 +0800 X-OQ-MSGID: <20250104051221.395620-2-eadavis@qq.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <67788cda.050a0220.3b53b0.0042.GAE@google.com> References: <67788cda.050a0220.3b53b0.0042.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit utsname: debug ctl table for domainname Before exit_task_work() is executed, exit_task_namespaces() has been executed, which will cause task->nsproxy to be NULL. #syz test: https://github.com/ea1davis/linux proc/syz