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 EA9B7215040; Mon, 31 Mar 2025 14:34:15 +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=1743431656; cv=none; b=DagN9HXtwqt/x2a5+upMbmiBYxOVLMydoIDIhPAjlXyJGWQQlj6ouV+AeGmSI6qpxMi1NvAlpxaaZOfhHUS5lXvNs09bCSn7ytRRL1WEc/j4+G7Kq4qHzUYSDd7qAlVrdQI/ljw5W1AgvtYVHovADpXoW7pAzn79dHfobj5xLPE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743431656; c=relaxed/simple; bh=OwDSW0Yx5MMteLWtiExux18IwLA6wIA5DFoE2zRAAfM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=iw0/FuqR7SOOpEpSckF+dEc9DNMeyd5t1pY9b6FpJLiJY0V3DoH5kw7nvsrz924bqgYYMnU9WJL80RWRfnczkhtRlDpqWxzcgpReGk6yK9iXg+4czxDtBMg7QlYqj7pYIPMSzwxLwTKIR4Tz5Q2FJecwQO7fwlBeHhkXBQ2eVY4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k9SlQduH; 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="k9SlQduH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 903EAC4CEE3; Mon, 31 Mar 2025 14:34:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743431655; bh=OwDSW0Yx5MMteLWtiExux18IwLA6wIA5DFoE2zRAAfM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k9SlQduHPUQUje7cnq9wP16jlfwLcEm7PBX1E9Z5Tp3YQOBxdnSSE9YR2mvGxIEbS poeWsZBGROfQ60N5UTzp5X0TdnCiwt7cje3orUgtAtNWt1b90ll9Lipl8Yk+UdK/pl X1w7xXoF2RUd/Zv6thnmScCXFVL6wQLE/TFQR+pt6sxpkg4KsliErdMacjqbUY84wS eIxX91vJaCFqoKwPfYE3MVGhw97T7P6uDFr7QmM/cVV3vp8mDiDfpMNVm2QxBdDcY0 bwQIgT/chx710DuzIFyN5mebz7n9gKfnWHObj09Mo4c3qGUJm4Ml573PwJ4LohPc15 ZZO5HogrUKGLw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Zhongqiu Han , Shuah Khan , Sasha Levin , trenn@suse.com, shuah@kernel.org, jwyatt@redhat.com, jkacur@redhat.com, peng.fan@nxp.com, linux-pm@vger.kernel.org Subject: [PATCH AUTOSEL 6.14 02/18] pm: cpupower: bench: Prevent NULL dereference on malloc failure Date: Mon, 31 Mar 2025 10:33:52 -0400 Message-Id: <20250331143409.1682789-2-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250331143409.1682789-1-sashal@kernel.org> References: <20250331143409.1682789-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.14 Content-Transfer-Encoding: 8bit From: Zhongqiu Han [ Upstream commit 208baa3ec9043a664d9acfb8174b332e6b17fb69 ] If malloc returns NULL due to low memory, 'config' pointer can be NULL. Add a check to prevent NULL dereference. Link: https://lore.kernel.org/r/20250219122715.3892223-1-quic_zhonhan@quicinc.com Signed-off-by: Zhongqiu Han Signed-off-by: Shuah Khan Signed-off-by: Sasha Levin --- tools/power/cpupower/bench/parse.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c index 080678d9d74e2..bd67c758b33ac 100644 --- a/tools/power/cpupower/bench/parse.c +++ b/tools/power/cpupower/bench/parse.c @@ -121,6 +121,10 @@ FILE *prepare_output(const char *dirname) struct config *prepare_default_config() { struct config *config = malloc(sizeof(struct config)); + if (!config) { + perror("malloc"); + return NULL; + } dprintf("loading defaults\n"); -- 2.39.5