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-rw-r--r--drivers/android/binder.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index f763aadc379d..c3adf7a69f4a 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -553,6 +553,7 @@ struct binder_proc {
struct task_struct *tsk;
struct files_struct *files;
struct mutex files_lock;
+ const struct cred *cred;
struct hlist_node deferred_work_node;
int deferred_work;
bool is_dead;
@@ -3117,7 +3118,7 @@ static void binder_transaction(struct binder_proc *proc,
t->from = thread;
else
t->from = NULL;
- t->sender_euid = task_euid(proc->tsk);
+ t->sender_euid = proc->cred->euid;
t->to_proc = target_proc;
t->to_thread = target_thread;
t->code = tr->code;
@@ -4556,6 +4557,7 @@ static void binder_free_proc(struct binder_proc *proc)
BUG_ON(!list_empty(&proc->delivered_death));
binder_alloc_deferred_release(&proc->alloc);
put_task_struct(proc->tsk);
+ put_cred(proc->cred);
binder_stats_deleted(BINDER_STAT_PROC);
kfree(proc);
}
@@ -5027,6 +5029,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
atomic_set(&proc->tmp_ref, 0);
get_task_struct(current->group_leader);
proc->tsk = current->group_leader;
+ proc->cred = get_cred(filp->f_cred);
mutex_init(&proc->files_lock);
INIT_LIST_HEAD(&proc->todo);
if (binder_supported_policy(current->policy)) {