mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-20 21:34:24 -05:00
55 lines
2.4 KiB
Diff
55 lines
2.4 KiB
Diff
From a939a87f0adf91feceb329a5c080b86e1ee333c7 Mon Sep 17 00:00:00 2001
|
|
From: Samyukta Mogily <smogily@codeaurora.org>
|
|
Date: Thu, 1 Sep 2016 18:16:50 +0530
|
|
Subject: msm: sensor: Avoid potential stack overflow
|
|
|
|
Add a check to validate the user input data is not
|
|
greater than expected stack buffer size to avoid out
|
|
of bounds array accesses
|
|
|
|
CRs-Fixed: 1056307
|
|
Change-Id: Ifd1f4e828373535fdf963aad22b217ae880c778c
|
|
Signed-off-by: Samyukta Mogily <smogily@codeaurora.org>
|
|
---
|
|
drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c | 6 ++++++
|
|
drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c | 6 ++++++
|
|
2 files changed, 12 insertions(+)
|
|
|
|
diff --git a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
|
|
index 7315327..99d4b654 100644
|
|
--- a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
|
|
+++ b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_cci_i2c.c
|
|
@@ -272,6 +272,12 @@ int32_t msm_camera_cci_i2c_write_seq_table(
|
|
client_addr_type = client->addr_type;
|
|
client->addr_type = write_setting->addr_type;
|
|
|
|
+ if (reg_setting->reg_data_size > I2C_SEQ_REG_DATA_MAX) {
|
|
+ pr_err("%s: number of bytes %u exceeding the max supported %d\n",
|
|
+ __func__, reg_setting->reg_data_size, I2C_SEQ_REG_DATA_MAX);
|
|
+ return rc;
|
|
+ }
|
|
+
|
|
for (i = 0; i < write_setting->size; i++) {
|
|
rc = msm_camera_cci_i2c_write_seq(client, reg_setting->reg_addr,
|
|
reg_setting->reg_data, reg_setting->reg_data_size);
|
|
diff --git a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c
|
|
index f542ec2..eced0ce 100644
|
|
--- a/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c
|
|
+++ b/drivers/media/platform/msm/camera_v2/sensor/io/msm_camera_qup_i2c.c
|
|
@@ -290,6 +290,12 @@ int32_t msm_camera_qup_i2c_write_seq_table(struct msm_camera_i2c_client *client,
|
|
client_addr_type = client->addr_type;
|
|
client->addr_type = write_setting->addr_type;
|
|
|
|
+ if (reg_setting->reg_data_size > I2C_SEQ_REG_DATA_MAX) {
|
|
+ pr_err("%s: number of bytes %u exceeding the max supported %d\n",
|
|
+ __func__, reg_setting->reg_data_size, I2C_SEQ_REG_DATA_MAX);
|
|
+ return rc;
|
|
+ }
|
|
+
|
|
for (i = 0; i < write_setting->size; i++) {
|
|
rc = msm_camera_qup_i2c_write_seq(client, reg_setting->reg_addr,
|
|
reg_setting->reg_data, reg_setting->reg_data_size);
|
|
--
|
|
cgit v1.1
|
|
|