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-rw-r--r--kernel/ptrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 5b8dd98a230e..b88d4186cd7a 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -155,7 +155,7 @@ int ptrace_attach(struct task_struct *task)
155 retval = -EPERM; 155 retval = -EPERM;
156 if (task->pid <= 1) 156 if (task->pid <= 1)
157 goto bad; 157 goto bad;
158 if (task == current) 158 if (task->tgid == current->tgid)
159 goto bad; 159 goto bad;
160 /* the same process cannot be attached many times */ 160 /* the same process cannot be attached many times */
161 if (task->ptrace & PT_PTRACED) 161 if (task->ptrace & PT_PTRACED)