mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-30 01:46:30 -05:00
58 lines
1.7 KiB
Diff
58 lines
1.7 KiB
Diff
From a5edb54e93ba85719091fe2bc426d75fa7059834 Mon Sep 17 00:00:00 2001
|
|
From: Amir Samuelov <amirs@codeaurora.org>
|
|
Date: Tue, 29 Nov 2016 10:58:54 +0200
|
|
Subject: spcom: check user space command size
|
|
|
|
The user space spcomlib provides command buffer
|
|
for various commands.
|
|
Verify that the command buffer size matches the expected
|
|
command struct size.
|
|
|
|
CRs-Fixed: 1094143
|
|
Change-Id: If3ead54bd03368fa9338921e299b2ad8fb078297
|
|
Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
|
|
---
|
|
drivers/soc/qcom/spcom.c | 13 ++++++++++++-
|
|
1 file changed, 12 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/drivers/soc/qcom/spcom.c b/drivers/soc/qcom/spcom.c
|
|
index 0c5f3b8..ebb6b13 100644
|
|
--- a/drivers/soc/qcom/spcom.c
|
|
+++ b/drivers/soc/qcom/spcom.c
|
|
@@ -1539,13 +1539,18 @@ static int spcom_handle_lock_ion_buf_command(struct spcom_channel *ch,
|
|
struct ion_handle *ion_handle;
|
|
int i;
|
|
|
|
+ if (size != sizeof(*cmd)) {
|
|
+ pr_err("cmd size [%d] , expected [%d].\n",
|
|
+ (int) size, (int) sizeof(*cmd));
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
/* Check ION client */
|
|
if (spcom_dev->ion_client == NULL) {
|
|
pr_err("invalid ion client.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
-
|
|
/* Get ION handle from fd - this increments the ref count */
|
|
ion_handle = ion_import_dma_buf(spcom_dev->ion_client, fd);
|
|
if (ion_handle == NULL) {
|
|
@@ -1591,6 +1596,12 @@ static int spcom_handle_unlock_ion_buf_command(struct spcom_channel *ch,
|
|
struct ion_client *ion_client = spcom_dev->ion_client;
|
|
int i;
|
|
|
|
+ if (size != sizeof(*cmd)) {
|
|
+ pr_err("cmd size [%d] , expected [%d].\n",
|
|
+ (int) size, (int) sizeof(*cmd));
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
/* Check ION client */
|
|
if (ion_client == NULL) {
|
|
pr_err("fail to create ion client.\n");
|
|
--
|
|
cgit v1.1
|
|
|