This is a note to let you know that I've just added the patch titled
binder: free memory on error
to the 4.12-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-4.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 22eb9476b5d80a393ac0ba235c42bccc90b82c76 Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@xxxxxxxxxx>
Date: Mon, 21 Aug 2017 16:13:28 +0200
Subject: binder: free memory on error
From: Christian Brauner <christian.brauner@xxxxxxxxxx>
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.
Signed-off-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/android/binder.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -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 christian.brauner@xxxxxxxxxx are
queue-4.12/binder-free-memory-on-error.patch