From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out203-205-221-205.mail.qq.com (out203-205-221-205.mail.qq.com [203.205.221.205]) (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 685B417BA3 for ; Sat, 4 Jan 2025 04:37:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735965445; cv=none; b=p364UD7rtOHfIlUzNePDCXx2q9iUTxEGLDeEnjst8nu898JqsfO9DmvPwP1T7A4HeUUg7cj//AZEVr7RCNtadetWEpi1BcwJqR4GPe6ZPoYAe8/YzE6anpOGqLtkNswv5aO7zZqEzDzip961NNguVc7k8Mhtsb/LoFkQyXMyAPU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735965445; c=relaxed/simple; bh=0m0zIuuefy1QYdI5+Dg7o86sdamYVZ8nxeikkv1ehKo=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=DDF/VfBc8x8Le6sINKV8BpH4rPXxCB9EsouD+BtsoMixyskc26IVCFXeASzeOGOc5isn6c8PR7Guoflg1KG5EOzT+qmW1j82dJ/TGOB6kopZzFQTkkiJX0b/2ecBrAZuYFV72UE2L3frYtCSvQNTXEQUXXldf/40klN5OOVJGiM= 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=JqJ3tuXl; arc=none smtp.client-ip=203.205.221.205 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="JqJ3tuXl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1735965439; bh=0m0zIuuefy1QYdI5+Dg7o86sdamYVZ8nxeikkv1ehKo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JqJ3tuXlJQEp1Lb6JF4tgOOGztUaOa87/YB4iVC6tfsIN8K2elh/hCzT0KXpu9OtZ sHKuXgGgDj8xXFsav+rPlhp07ujwpIyEpPNg+w2dAxH7V96rbnTGpuW8rL76ycz/fc U2pXSC98sVYMyK4iEDP8rT/nhSOFUnR/Kevh3JXE= Received: from pek-lxu-l1.wrs.com ([114.244.57.34]) by newxmesmtplogicsvrszc13-0.qq.com (NewEsmtp) with SMTP id 83922AE1; Sat, 04 Jan 2025 12:32:57 +0800 X-QQ-mid: xmsmtpt1735965177tavw88jcr Message-ID: X-QQ-XMAILINFO: M4qg1sWUWa2WNUjqBMXVE1+/DpSOXXQcSDf8G0Gj8ulWYBGImBS84cZOkeIYmr 8BiTZlfXnN17XwT/BsUvaBSxp60hFEFsaL1gUKpWVf4D2VRKsZSOciePe9SKu/L7ufmPGwr3xWK2 rxsPHKiOmHkvUNxRWmES0x9wZzfjr6oy7Usl8bq9SPpaZD66V5Q98eB+52q+KHaFYaan/tuvlwiL IR5yXmSVDUzEKn4ZEQtU2P4zGdJ7lEZQkbb0MBTyHX5rVRr8VqsaNGkIFbUfTBytkvrZI5t5X60o Ig1FSlkwzFf4FuZD4gJxDyY+nIgjPKQQ+MMsRBqb8OemIVUQDd4nHYNpXYSdGKRBNIr3hxoAbGBc mMWi0OLRh78vivNFCF5cDLA7CLWRHg8d4F4tis4wedAxTvGsRpLDdz29IGrdppyjdkGV0Jgt/quj LpIYy1t3vsfR3EHSRLF9SKr4rJGdr8QKFNfpaUKIFvtbaXqTUtrUf0WR7jGIA118hEqDotg6n5sK WWDwqadYZMEGdDyJCS6733kzroGhj9hEMOjzX1KGYsiHOHa1DAzpInubqijK192nRDO3hFYvmLyU kxySTZFFnMIsnPjBh12tyrnMzzjm4nbLZkBVjwXmSif6sj8YJ84OJDClacmFOx+3Tew/rrmr56wj zs1lFMvp9JwiHZRT64u6UrPqRhIgc0x3q8ULCMfckQgI44ESh7FAu1mRNMoOTnD34Vn3Y3fZPUM5 tD0Z7csZmB/wlVphr5KqDsr3nQ6dsuFAq4MwEWGV62T8qvsU/nWKgeAID8YgorFqdzkEKWHzg7lI ApnLrAYbMOGAs9Yrn/iEZitI654rPxvHb4dkO6mW/ECBL2nZDmRnoZyhGjCKymESJmDsmGgH3H1+ xdTIJ6U/fwffFtTRwZXo9WGH41iZS4XduwPp41ruhM+KeDTyMCfj7jYZyZWV1/lqY/9nFfWItn X-QQ-XMRINFO: OD9hHCdaPRBwq3WW+NvGbIU= 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 12:32:57 +0800 X-OQ-MSGID: <20250104043256.357542-2-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. sys_acct accounting records to "/proc/sys/kernel/domainname", if data too long, can we continue account? #syz test: https://github.com/ea1davis/linux proc/syz