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 7C0FA7E767; Mon, 22 Jan 2024 15:10:05 +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=1705936205; cv=none; b=H7ZV/NzHnlyoL+b/OxhiGX8w3zY7iZaNGYT4fAW0QX0uJwk6eHpjd2fcH0KAckaN04Mm2Ojo0EXgfHFq83KuZH+bsxtwnJ/QtkDFYFRsTLnBdfhbp6tfbfKqcsCvBw6+EIt71DXX++M7mcSbS+A7fOfF1UHGHG2/6bDMpxhfdB8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705936205; c=relaxed/simple; bh=A0S/cY9h5f1v7f0qham4Hn8BDj9W4OtxXp3D12b51HA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Es+2K19vowz+A+ac7LfQoJfNhGEXCDn0QsEtd/+m+pdtO+NoybVSAd3QzUTmkhI8CpJN3OfRf/pGGp9u0GBOaXSUU/R9kCNv7zRQkZhmTo7n4Y6GGd1N6qkeCJ/bVSmwsYIUKgB92Kjp6W7fVeAgnzky07SBRu5keLnY6Y/NJiM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XVaEDS5I; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XVaEDS5I" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B49AFC43390; Mon, 22 Jan 2024 15:10:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705936205; bh=A0S/cY9h5f1v7f0qham4Hn8BDj9W4OtxXp3D12b51HA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XVaEDS5IQSatFElimcEoqLw70B7s+lRXKnflgl+xkBqo9C+ZOLK6vC+x+arUCv4VV N1o2CnEybHl+jdMtm7L0RdAA1rVdKScT+RRTWxNzVaFwi7deENlEYEZv4kHW9yK1CX hGT5VV7mlTE8Ri7VHbTnYlP47WZ2AsFER9B3ujlIVcFhO03GlZ1RiKcZncglW3xlPq owqdMuNpGQXsnylj6L621nP5CAzJ4z+MsqxX1aiS9JyIufTaH3f55CMRkmfGU6wcoU hGsdc+ivIIaGFEVn9x+9UXkcfLwCzuK305K5fYNANavP0Zh4SCkA/jJPMtno7Khf7i xNRMpxR+oW4DQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kamil Duljas , Mark Brown , Sasha Levin , pierre-louis.bossart@linux.intel.com, lgirdwood@gmail.com, peter.ujfalusi@linux.intel.com, yung-chuan.liao@linux.intel.com, ranjani.sridharan@linux.intel.com, daniel.baluta@nxp.com, perex@perex.cz, tiwai@suse.com, sound-open-firmware@alsa-project.org, linux-sound@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 07/53] ASoC: SOF: icp3-dtrace: Fix wrong kfree() usage Date: Mon, 22 Jan 2024 10:08:08 -0500 Message-ID: <20240122150949.994249-7-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240122150949.994249-1-sashal@kernel.org> References: <20240122150949.994249-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.74 Content-Transfer-Encoding: 8bit From: Kamil Duljas [ Upstream commit 8c91ca76f44804868d12aed20ebdbc2f89aa7d60 ] trace_filter_parse() allocs memory for *out and when -ENOMEM is returned, caller function, dfsentry_trace_filter_write() trying to freed this memory. After this patch, the memory is freed in trace_filter_parse() before -EINVAL returned. In caller function removed kfree(elms) from error label Signed-off-by: Kamil Duljas Link: https://lore.kernel.org/r/20231116220102.2097-2-kamil.duljas@gmail.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/sof/ipc3-dtrace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/sof/ipc3-dtrace.c b/sound/soc/sof/ipc3-dtrace.c index 8cf421577378..c626cefa0ec5 100644 --- a/sound/soc/sof/ipc3-dtrace.c +++ b/sound/soc/sof/ipc3-dtrace.c @@ -137,6 +137,7 @@ static int trace_filter_parse(struct snd_sof_dev *sdev, char *string, dev_err(sdev->dev, "Parsing filter entry '%s' failed with %d\n", entry, entry_len); + kfree(*out); return -EINVAL; } } @@ -215,13 +216,13 @@ static ssize_t dfsentry_trace_filter_write(struct file *file, const char __user ret = ipc3_trace_update_filter(sdev, num_elems, elems); if (ret < 0) { dev_err(sdev->dev, "Filter update failed: %d\n", ret); + kfree(elems); goto error; } } ret = count; error: kfree(string); - kfree(elems); return ret; } -- 2.43.0