mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-10-01 01:35:54 -04:00
40 lines
1.2 KiB
Diff
40 lines
1.2 KiB
Diff
From 015d1d5dc8c42d6ab92a31b99cd9f089fae1d27e Mon Sep 17 00:00:00 2001
|
|
From: Dennis Cagle <d-cagle@codeaurora.org>
|
|
Date: Fri, 6 Jan 2017 15:50:35 -0800
|
|
Subject: [PATCH] QBT1000: check for null pointer before copying command
|
|
|
|
A null command buffer will cause a null pointer crash.
|
|
Check for it.
|
|
|
|
Bug: 32372915
|
|
Bug: 32370896
|
|
CRs-fixed: 1041652, 1081802
|
|
Change-Id: I37a0c8b9fe2c144fb4e75036509bf7ec07604ea7
|
|
Signed-off-by: Lior Barenboim <liorb@codeaurora.org>
|
|
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
|
|
---
|
|
drivers/soc/qcom/qbt1000.c | 7 +++++++
|
|
1 file changed, 7 insertions(+)
|
|
mode change 100644 => 100755 drivers/soc/qcom/qbt1000.c
|
|
|
|
diff --git a/drivers/soc/qcom/qbt1000.c b/drivers/soc/qcom/qbt1000.c
|
|
old mode 100644
|
|
new mode 100755
|
|
index 135e2b834db30..101fcedd1f2c0
|
|
--- a/drivers/soc/qcom/qbt1000.c
|
|
+++ b/drivers/soc/qcom/qbt1000.c
|
|
@@ -862,6 +862,13 @@ static long qbt1000_ioctl(struct file *file, unsigned cmd, unsigned long arg)
|
|
if (rc != 0)
|
|
goto end;
|
|
|
|
+ if (!aligned_cmd) {
|
|
+ dev_err(drvdata->dev, "%s: Null command buffer\n",
|
|
+ __func__);
|
|
+ rc = -EINVAL;
|
|
+ goto end;
|
|
+ }
|
|
+
|
|
rc = copy_from_user(aligned_cmd, (void __user *)tzcmd.req_buf,
|
|
tzcmd.req_buf_len);
|
|
if (rc != 0) {
|