disp: msm: dsi: add check for buffer length before copy
The change adds a check to make sure the length of bytes being copied don't exceed the size of the destination buffer causing an overflow. Change-Id: Ib3ca3705e4179ccda1af11279e96e167baee6a3b Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>
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@ -1120,6 +1120,9 @@ static ssize_t debugfs_dump_info_read(struct file *file,
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"\tClock master = %s\n",
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display->ctrl[display->clk_master_idx].ctrl->name);
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if (len > user_len)
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len = user_len;
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if (copy_to_user(user_buf, buf, len)) {
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kfree(buf);
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return -EFAULT;
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