From patchwork Thu Jul 18 06:05:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: xiaopeitux@foxmail.com X-Patchwork-Id: 13736054 Received: from qq.com (ec2-54-164-151-162.compute-1.amazonaws.com [54.164.151.162]) (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 D218D4D8AF; Thu, 18 Jul 2024 06:12:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.164.151.162 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721283158; cv=none; b=VRUdzmaT3IowEGr4/5hD9QSTSBF3TKeu8XekbKnu1YsH8dmX36lOQwGmlTZlA14S4LLnLT3W64A7ZgDi3MjYOLlxlA2HzfEl/24V0/pT0iv6A5LRSgqrCG9sj6hJqg0hSDM8rquyk05XqhmdCb6KMbTHyooSySDjS7k5bKKLl10= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721283158; c=relaxed/simple; bh=7JUm4p+EuPVcOm1o3oLVGCkZZPHSDs3UrfRpHozmgvw=; h=Message-ID:From:To:Cc:Subject:Date:MIME-Version; b=DWpg/mf4lF0y/BOekA1KJSavICsI3eT20TjXxZLpzPVWFTdFIeIq0EPQHWFreK7mZIY2y/DBfkZn31Xv2GC4/XV7g5lhdNHpC2tQy/f0FpM9XMT6H3CZn2AFNYIwFfAOyPbDWwQ7xq8nPu4/Ri/R50XVZsKro+YcjLcfH1EZyds= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foxmail.com; spf=pass smtp.mailfrom=foxmail.com; dkim=pass (1024-bit key) header.d=foxmail.com header.i=@foxmail.com header.b=sTuhT3YZ; arc=none smtp.client-ip=54.164.151.162 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foxmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foxmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=foxmail.com header.i=@foxmail.com header.b="sTuhT3YZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1721283151; bh=/7iSlBFI9MY1Y4PScPXpFxG9gotJAJRZJot1OTuuAO4=; h=From:To:Cc:Subject:Date; b=sTuhT3YZZ0w834jLJzowFUsweOOA6PtU6o5edzrkwEiaC5/xSFZeo7R8ZnU7Xn0ZW 1/2/yrhKVk/eQ8vlT4zVWsGni9B4l5zedXbG5D4YXGszBfzuqmZ/OpAUuTuCfjV+BX ruyx1n0546ceAl8lPaYL66mB1mjnQ/8k+qqKNDE0= Received: from xp-virtual-machine.. ([111.48.58.13]) by newxmesmtplogicsvrszc5-2.qq.com (NewEsmtp) with SMTP id 172BCE40; Thu, 18 Jul 2024 14:05:50 +0800 X-QQ-mid: xmsmtpt1721282750tsh8h88qb Message-ID: X-QQ-XMAILINFO: NY3HYYTs4gYS7OOWi8VYXIKN4SmPNanHlFkl9M5hD6udx6uGqWXekcsBDUflRr 8KTN6NXcomSsq+VpYWOngnszoM6c4U+0iVmxxpYcH1PgR0BIqlbBdrY5jKrls5/qeZFsxCMCkcfB WiJmTrupuW5qhCae0maNRwA4X+4SBX+RS9gDPpVIXawM5hzXur8pTfHliCmD5FsF/Qsii1qBdMH4 pftNc37JpPApe4y3pgz//n1CM4YCK0bz4d32l3aj5oIaeb1nU1KGGIJ3LrNhFrtQ6J7tS+TaBcnL HVT1wnxGdLrXwEVSnWdmj4aZ9DQulwh3rQRVQUY/kRGilOXd+JYRMzZjCFtg+rR7CKrUZ4d+gKbB R8vO+Xf/lcCQbQxw5ySCj/QEqXfArnP5W8jYkYqsCJLqjv2hCMXsAyC39wfyjxIwpMipLJnu/PQt zjJs2TLS0OtUkVOnKWnW6J+9qyMgGQQ9zdBi3AXN7f6qaWbUQ21mFMxnf6p1N87gWsyPmp5YJzaE v9K7aCcLUn6pG4TeHn/x6HmHAPvkm0czYHKShGvagq8v05q5Hh8zsjcVmhgpWShI6ryZELmMcEa+ FrhylYHCeOh2OiAwCBEy7ZU66BS28zmND+mNT0ih0GQtUBEiWnFNYQH4spbmGTzPuxQI6cQ3gyRr 0CJb0fui5mkHKWS9mpp7x6AxHdp6FW4+3O49MZf0DTAUtBaIknRqA4rL8564M929xpU5Z50EVnwS Ndp5E/0nr3mmGHfrrONi68cUoJ9vuypjm/b0pjE9h6c+4rVdKEC/wMTx19KBudu+opO1LlY7ffUo CqnszrHtSmirAvhivFfaoHXZRT+dv0LhMBu560m+/Y236W5QDAJaJzdv+ZhoV1dpYpQdW0Hz9S9F 7LhPuseEtngoekBPkb3AMkhtEexAZ2dyWgccZ458E6oikL5izpD7NkSaKV9byYsBrqGS3n+HEDYg PWKlOLA38rBcnxAquusPXigWb6YD5WNLDIz3SrZve+PyTU13n0ckXOS0QVzGgAWP+QRb9uMMf5tx jufyIg0BLzDEoQMNHitn2mAYVuZWZ+0IAa3GYhh1OTeRxlE4gTPtcm2qrM5bA= X-QQ-XMRINFO: Mp0Kj//9VHAxr69bL5MkOOs= From: xiaopeitux@foxmail.com To: robert.moore@intel.com, rafael.j.wysocki@intel.com Cc: acpica-devel@lists.linux.dev, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, xiaopei01@kylinos.cn Subject: [PATCH] ACPICA: ACPICA: check null return of ACPI_ALLOCATE_ZEROED in acpi_db_convert_to_package ACPICA commit 4d4547cf13cca820ff7e0f859ba83e1a610b9fd0 Date: Thu, 18 Jul 2024 14:05:48 +0800 X-OQ-MSGID: <3e39c54f8278e163691d629f1cf89bffcf4c6031.1721280951.git.xiaopei01@kylinos.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Pei Xiao ACPI_ALLOCATE_ZEROED may fails, elements might be null and will cause null pointer dereference later. Link: https://github.com/acpica/acpica/commit/4d4547cf Signed-off-by: Pei Xiao --- drivers/acpi/acpica/dbconvert.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c index 2b84ac093698..8dbab6932049 100644 --- a/drivers/acpi/acpica/dbconvert.c +++ b/drivers/acpi/acpica/dbconvert.c @@ -174,6 +174,8 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object) elements = ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS * sizeof(union acpi_object)); + if (!elements) + return (AE_NO_MEMORY); this = string; for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {