From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3E8AD7A705; Tue, 23 Jan 2024 02:05:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705975549; cv=none; b=i8lFQ0qU/LVaFc/st6Yd1v5IoMAppq9gfcH/z07ZPLxM/jmt+zZ+T0yRY7CrbjN4FmIeGQ4PTSj70sQY4lS3U+776Tcmz7eZ8GWKbkaXkYu5fG0riqhCGuG5uceRjLQIqB90RgwDGbf6pqtSrV5dDBrZ7F69KUcCbbNWvXAcUSY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705975549; c=relaxed/simple; bh=evH1+6OjTDYSW0MtpfK18ZcUyKR3SzPc6zwBiFR4Kzw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q9WLXyRB7728mBkDj3dsazPLv+Ti3WUr2An9ty03SXzCkRnwJ/AlvdPVx24Vpif95INJPLdEd1vlLLPLMEyQPAR9Nd+uIToJuNfehTi1WRLVulnp8kx4pu9xgevhAgCOAn0MlErmx/impqhPK66wExS6qC0y7ZoM6nR8kBN8wrk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ylVjtb2L; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ylVjtb2L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00B2DC433B1; Tue, 23 Jan 2024 02:05:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705975549; bh=evH1+6OjTDYSW0MtpfK18ZcUyKR3SzPc6zwBiFR4Kzw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ylVjtb2LpVY39M6lb97YEK7RjBm746XJxMIBzc6a6uw+W5jF3jH9/p4KI89gB5W0v waFHS573ZjnduR18plalNZoScn8d4DpZFtIF9kd1P6SQmUAvgtmtT9/AspjaURf/LB 13KU1YPYvlhUIbQdrVckTH4/lFPgxzGyylUnc4kw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kunwu Chan , Sebastian Reichel , Sasha Levin Subject: [PATCH 6.6 500/583] power: supply: Fix null pointer dereference in smb2_probe Date: Mon, 22 Jan 2024 15:59:11 -0800 Message-ID: <20240122235827.335886353@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122235812.238724226@linuxfoundation.org> References: <20240122235812.238724226@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kunwu Chan [ Upstream commit 88f04bc3e737155e13caddf0ba8ed19db87f0212 ] devm_kasprintf and devm_kzalloc return a pointer to dynamically allocated memory which can be NULL upon failure. Fixes: 8648aeb5d7b7 ("power: supply: add Qualcomm PMI8998 SMB2 Charger driver") Signed-off-by: Kunwu Chan Link: https://lore.kernel.org/r/20231124075021.1335289-1-chentao@kylinos.cn Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/qcom_pmi8998_charger.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/power/supply/qcom_pmi8998_charger.c b/drivers/power/supply/qcom_pmi8998_charger.c index 10f4dd0caca1..22c7c0e7c522 100644 --- a/drivers/power/supply/qcom_pmi8998_charger.c +++ b/drivers/power/supply/qcom_pmi8998_charger.c @@ -973,10 +973,14 @@ static int smb2_probe(struct platform_device *pdev) supply_config.of_node = pdev->dev.of_node; desc = devm_kzalloc(chip->dev, sizeof(smb2_psy_desc), GFP_KERNEL); + if (!desc) + return -ENOMEM; memcpy(desc, &smb2_psy_desc, sizeof(smb2_psy_desc)); desc->name = devm_kasprintf(chip->dev, GFP_KERNEL, "%s-charger", (const char *)device_get_match_data(chip->dev)); + if (!desc->name) + return -ENOMEM; chip->chg_psy = devm_power_supply_register(chip->dev, desc, &supply_config); -- 2.43.0