Patch "binder: free memory on error" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

binder: free memory on error

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
binder-free-memory-on-error.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Christian Brauner <[email protected]>
Date: Mon, 21 Aug 2017 16:13:28 +0200
Subject: binder: free memory on error

From: Christian Brauner <[email protected]>

commit 22eb9476b5d80a393ac0ba235c42bccc90b82c76 upstream.

On binder_init() the devices string is duplicated and smashed into individual device names which are passed along. However, the original duplicated string wasn't freed in case binder_init() failed. Let's free it on error.

---
 drivers/android/binder.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

@@ -4215,7 +4215,7 @@ static int __init init_binder_device(con
 static int __init binder_init(void)
 {
 	int ret;
-	char *device_name, *device_names;
+	char *device_name, *device_names, *device_tmp;
 	struct binder_device *device;
 	struct hlist_node *tmp;
 

@@ -4263,7 +4263,8 @@ static int __init binder_init(void)
 	}
 	strcpy(device_names, binder_devices_param);
 
-	while ((device_name = strsep(&device_names, ","))) {
+	device_tmp = device_names;
+	while ((device_name = strsep(&device_tmp, ","))) {
 		ret = init_binder_device(device_name);
 		if (ret)
 			goto err_init_binder_device_failed;

@@ -4277,6 +4278,9 @@ err_init_binder_device_failed:
 		hlist_del(&device->hlist);
 		kfree(device);
 	}
+
+	kfree(device_names);
+
 err_alloc_device_names_failed:
 	debugfs_remove_recursive(binder_debugfs_dir_entry_root);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/binder-free-memory-on-error.patch