From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out162-62-57-64.mail.qq.com (out162-62-57-64.mail.qq.com [162.62.57.64]) (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 0B0C918E20 for ; Sat, 4 Jan 2025 05:45:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.62.57.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735969535; cv=none; b=isMTmCxB2l58jogyYuTvBcA2nSMyiLi1x45X1sSDB4rO+mN446DtK8x0ipNl+HTadxR6graelilmgtBrJoKxl8jlVHz9DYmbyblJXGs+978VVVoHM0slDzuqEFF/nc/CiGVfaqAw/8sXPA133rO5UAE1xOlb0jQo4ZXlxiFYdgA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735969535; c=relaxed/simple; bh=z4g6g762edN/mF1Jwy0hWnzRwdiwoG9LiGJsSDL/hWc=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=WxmZ1lMkCfdJoVPLXFO/fL5tKuZ5FBzY0esbDGJEJwsdmxwinmWzikqhC+tqwXVa1bYzjMxkPpGSo2b/z7rJE/lTKdd/rFFBu4TyGwo/GFoGJjKiOajrSkGf8hTOoGs61F/WKPFcYFfVRQ6kT0fxKExTaGtoIIMa5D+KAOVYcGM= 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=U3M4ccj9; arc=none smtp.client-ip=162.62.57.64 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="U3M4ccj9" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1735969526; bh=z4g6g762edN/mF1Jwy0hWnzRwdiwoG9LiGJsSDL/hWc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=U3M4ccj9JS1dwVKi6BXkqTrN9x6YHAM2bB+9EM6pSox3gQJKrbE4m0rsrhoFCHGNh SlxbwyyTt6+DyinyA2VjhRZuqASw/7u1sV7tMgTIvbhrr9MLg8T0t/ObC9WZWzqHIa s1pU/lCBCx9++gFePbVaNAjNqVQ0q2O1LIyIkxVY= Received: from pek-lxu-l1.wrs.com ([114.244.57.34]) by newxmesmtplogicsvrszb21-0.qq.com (NewEsmtp) with SMTP id 9D0B0AF0; Sat, 04 Jan 2025 13:39:16 +0800 X-QQ-mid: xmsmtpt1735969156t7zwklw19 Message-ID: X-QQ-XMAILINFO: NKv2G1wnhDBnwl5W7fEWs+lRnaJ4DLq94aIKIcgaBgjvTyrJRT1S70nwyNbgpJ M/ockiOT4Mt0y+ibUWVa+MYTkmqxpRiZEh5h9Mi05rNUH8YIgj9kr/LQqk2UOnwKtyeF/qcDIdMj j6dPL9ZYhLnAUqnEIsmrd1IS5c0hjVNzJLQUr/o0QPC0r3KrzNtPWKg02+/zT39LG6dv23Tnxn+8 x8/BW7DSP300JG+a56TbD8z1C+jG0bBumbpsdXW4i+s1tq6t68XyFhc0/F0kJwKAIR9YpPF7EE0x UiL5hvCpb/8J85FMv+1SwuSq8k4kxdyWxYjyFoJMR6hIL6B/w3kQHyiB3YVsrGJH7WPVqBwVSAO2 yfmn31j5GfEaKaS4wZ0RgnfundVrJak53+gZIZzzqRbKkPvgQNEbyzVUPCdPAsCiq9oY5lUWVEGL SGfpPDP/o+aAT537O4HlmUOsLtNrA4LiRQ0hgxpVLU3CeIxpp2gBpMOCu6HCZtJuPBItXvC0Ao9g HrBeNI2gTUcbhlxC0WEh2h7qwy0Z4tvu9ebIrOwDt+8uPv65Y+cOHRivd1QAx4Z/ZTUV2Y+742nK zxAxdPc5XAJZpRtEq7AkhVnbXxnbzA64dTnYfim8HfzX/VnnbTO3QMHAVNYzw/PJPpPGC7IU8Q+J oRynhfg7WQvIHXN0kTKxR7GRV2rSr0UdeezU7s52gLlZsexLAuHfI03Ws8Lr0Atsu+2ZuEm1qd1r eYP1Cyjr4+PIWIcByACI7vEYJDbzlSMc79Dy0zyts65XrmRgXKtwEbPAcMaHJjc9atXP77PnJcmj v8MeKetZJo37rZf0yXjsaDDUVyXZSHpSD44JUoqG9yhJCMj2UMeTe5gMGQ4FfzLcZsagr1AVNOQ2 InFshzMxgZG3t3tfoLcKS5LgD/PbBLwSy27f5QQMl2A0VmKL9a161t3dVHM6swX632b8bOpBjArZ fz24FhxjbQAWaprx4UELC521fveYZt X-QQ-XMRINFO: NyFYKkN4Ny6FSmKK/uo/jdU= 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 13:39:17 +0800 X-OQ-MSGID: <20250104053916.420580-2-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