1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 82a558b655da..3eca7a55f2ee 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -233,6 +233,7 @@ int ptrace_detach(struct task_struct *child, unsigned int data)
 
         /* Architecture-specific hardware disable .. */
         ptrace_disable(child);
+        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
 
         write_lock_irq(&tasklist_lock);
         /* protect against de_thread()->release_task() */