2019-03-29 14:12:17 +08:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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2019-02-28 15:18:07 +08:00
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From: Yael Samet <yael.samet@intel.com>
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Date: Mon, 7 Jan 2019 09:01:24 +0200
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2019-03-29 14:12:17 +08:00
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Subject: [PATCH] mei: dal: dal_dev_read() - check for invalid argument
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2019-02-28 15:18:07 +08:00
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Need to dal_dev_read() if user the supplied buffer is not NULL.
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Change-Id: I83ce529d9859090ddc959812a3f9c3abd5c376dd
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Tracked-On: PKT-1711
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Signed-off-by: Yael Samet <yael.samet@intel.com>
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Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
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---
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drivers/misc/mei/dal/dal_cdev.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/drivers/misc/mei/dal/dal_cdev.c b/drivers/misc/mei/dal/dal_cdev.c
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2020-10-27 02:14:06 +08:00
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index 48f209af4909..7b1aa55f7e79 100644
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2019-02-28 15:18:07 +08:00
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--- a/drivers/misc/mei/dal/dal_cdev.c
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+++ b/drivers/misc/mei/dal/dal_cdev.c
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@@ -107,6 +107,9 @@ static ssize_t dal_dev_read(struct file *fp, char __user *buf,
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size_t r_len, len;
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unsigned int copied;
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+ if (!buf)
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+ return -EINVAL;
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+
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ret = dal_wait_for_read(dc);
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if (ret)
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return ret;
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--
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2019-04-08 18:08:36 +08:00
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https://clearlinux.org
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2019-02-28 15:18:07 +08:00
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