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49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
From 7e147f4532394f06c3d7bce9cc6e682785754e45 Mon Sep 17 00:00:00 2001
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From: Mohammed Khajapasha <mkhaja@codeaurora.org>
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Date: Tue, 28 Jun 2016 11:55:34 +0530
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Subject: msm-core: use get_user() API to read userspace data/settings
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Currently userspace data is getting accessed directly
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and leading to crash, So use get_user() API to copy
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userspace data/settings to kernel space.
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Change-Id: I3a75ec9503d8207829640bf88e1c3160bf72c9f0
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Signed-off-by: Mohammed Khajapasha <mkhaja@codeaurora.org>
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Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
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---
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drivers/power/qcom/msm-core.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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diff --git a/drivers/power/qcom/msm-core.c b/drivers/power/qcom/msm-core.c
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index 406f097..f644950 100644
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--- a/drivers/power/qcom/msm-core.c
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+++ b/drivers/power/qcom/msm-core.c
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@@ -1,4 +1,4 @@
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-/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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+/* Copyright (c) 2014-2016, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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@@ -441,14 +441,15 @@ static long msm_core_ioctl(struct file *file, unsigned int cmd,
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struct sched_params __user *argp = (struct sched_params __user *)arg;
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int i, cpu = num_possible_cpus();
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int mpidr;
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- int cpumask;
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+ int cluster, cpumask;
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if (!argp)
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return -EINVAL;
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- mpidr = (argp->cluster << (MAX_CORES_PER_CLUSTER *
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+ get_user(cluster, &argp->cluster);
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+ mpidr = (cluster << (MAX_CORES_PER_CLUSTER *
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MAX_NUM_OF_CLUSTERS));
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- cpumask = argp->cpumask;
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+ get_user(cpumask, &argp->cpumask);
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switch (cmd) {
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case EA_LEAKAGE:
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--
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cgit v1.1
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