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-rw-r--r--kernel/ptrace.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 8456b6e2205f..83a531cea2f3 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -79,9 +79,7 @@ void __ptrace_link(struct task_struct *child, struct task_struct *new_parent,
*/
static void ptrace_link(struct task_struct *child, struct task_struct *new_parent)
{
- rcu_read_lock();
- __ptrace_link(child, new_parent, __task_cred(new_parent));
- rcu_read_unlock();
+ __ptrace_link(child, new_parent, current_cred());
}
/**
@@ -118,6 +116,9 @@ void __ptrace_unlink(struct task_struct *child)
BUG_ON(!child->ptrace);
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
+#ifdef TIF_SYSCALL_EMU
+ clear_tsk_thread_flag(child, TIF_SYSCALL_EMU);
+#endif
child->parent = child->real_parent;
list_del_init(&child->ptrace_entry);