mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-22 06:04:57 -05:00
109 lines
3.6 KiB
Diff
109 lines
3.6 KiB
Diff
From 322c518689a7f820165ca4c5d6b750b02ac34665 Mon Sep 17 00:00:00 2001
|
|
From: Jim Rasche <jrasche@codeaurora.org>
|
|
Date: Mon, 22 Jul 2013 15:03:50 -0700
|
|
Subject: msm:camera: Fix multiple bounds check
|
|
|
|
Added bounds check to user input num_streams at several location,
|
|
without checking a position outside array could be dereferenced
|
|
|
|
Change-Id: I6e82d8b51e4ec6772316c7daef243240c029db96
|
|
Signed-off-by: Jim Rasche <jrasche@codeaurora.org>
|
|
---
|
|
.../platform/msm/camera_v2/isp/msm_isp_axi_util.c | 46 ++++++++++++++++++++++
|
|
1 file changed, 46 insertions(+)
|
|
|
|
diff --git a/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c b/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c
|
|
index 5b7658d..746425b 100644
|
|
--- a/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c
|
|
+++ b/drivers/media/platform/msm/camera_v2/isp/msm_isp_axi_util.c
|
|
@@ -300,7 +300,16 @@ int msm_isp_axi_check_stream_state(
|
|
struct msm_vfe_axi_stream *stream_info;
|
|
enum msm_vfe_axi_state valid_state =
|
|
(stream_cfg_cmd->cmd == START_STREAM) ? INACTIVE : ACTIVE;
|
|
+
|
|
+ if (stream_cfg_cmd->num_streams > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
for (i = 0; i < stream_cfg_cmd->num_streams; i++) {
|
|
+ if (HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])
|
|
+ > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
stream_info = &axi_data->stream_info[
|
|
HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])];
|
|
spin_lock_irqsave(&stream_info->lock, flags);
|
|
@@ -840,7 +849,16 @@ static void msm_isp_update_camif_output_count(
|
|
int i;
|
|
struct msm_vfe_axi_stream *stream_info;
|
|
struct msm_vfe_axi_shared_data *axi_data = &vfe_dev->axi_data;
|
|
+
|
|
+ if (stream_cfg_cmd->num_streams > MAX_NUM_STREAM) {
|
|
+ return;
|
|
+ }
|
|
+
|
|
for (i = 0; i < stream_cfg_cmd->num_streams; i++) {
|
|
+ if (HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])
|
|
+ > MAX_NUM_STREAM) {
|
|
+ return;
|
|
+ }
|
|
stream_info =
|
|
&axi_data->stream_info[
|
|
HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])];
|
|
@@ -1020,7 +1038,16 @@ static int msm_isp_start_axi_stream(struct vfe_device *vfe_dev,
|
|
uint32_t wm_reload_mask = 0x0;
|
|
struct msm_vfe_axi_stream *stream_info;
|
|
struct msm_vfe_axi_shared_data *axi_data = &vfe_dev->axi_data;
|
|
+
|
|
+ if (stream_cfg_cmd->num_streams > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
for (i = 0; i < stream_cfg_cmd->num_streams; i++) {
|
|
+ if (HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])
|
|
+ > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
stream_info = &axi_data->stream_info[
|
|
HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])];
|
|
src_state = axi_data->src_info[
|
|
@@ -1073,7 +1100,16 @@ static int msm_isp_stop_axi_stream(struct vfe_device *vfe_dev,
|
|
uint8_t wait_for_complete = 0;
|
|
struct msm_vfe_axi_stream *stream_info;
|
|
struct msm_vfe_axi_shared_data *axi_data = &vfe_dev->axi_data;
|
|
+
|
|
+ if (stream_cfg_cmd->num_streams > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
for (i = 0; i < stream_cfg_cmd->num_streams; i++) {
|
|
+ if (HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])
|
|
+ > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
stream_info = &axi_data->stream_info[
|
|
HANDLE_TO_IDX(stream_cfg_cmd->stream_handle[i])];
|
|
|
|
@@ -1158,8 +1194,18 @@ int msm_isp_update_axi_stream(struct vfe_device *vfe_dev, void *arg)
|
|
return -EBUSY;
|
|
}
|
|
|
|
+ /*num_stream is uint32 and update_info[] bound by MAX_NUM_STREAM*/
|
|
+ if (update_cmd->num_streams > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
for (i = 0; i < update_cmd->num_streams; i++) {
|
|
update_info = &update_cmd->update_info[i];
|
|
+ /*check array reference bounds*/
|
|
+ if (HANDLE_TO_IDX(update_info->stream_handle)
|
|
+ > MAX_NUM_STREAM) {
|
|
+ return -EINVAL;
|
|
+ }
|
|
stream_info = &axi_data->stream_info[
|
|
HANDLE_TO_IDX(update_info->stream_handle)];
|
|
if (stream_info->state != ACTIVE &&
|
|
--
|
|
cgit v1.1
|
|
|