1 files changed, 4 insertions, 1 deletions

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 00ab2ca5ed11..273f56ea39d2 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -528,6 +528,9 @@ int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long ds
 
 static int ptrace_setoptions(struct task_struct *child, unsigned long data)
 {
+        if (data & ~(unsigned long)PTRACE_O_MASK)
+                return -EINVAL;
+
         child->ptrace &= ~PT_TRACE_MASK;
 
         if (data & PTRACE_O_TRACESYSGOOD)
@@ -551,7 +554,7 @@ static int ptrace_setoptions(struct task_struct *child, unsigned long data)
         if (data & PTRACE_O_TRACEEXIT)
                 child->ptrace |= PT_TRACE_EXIT;
 
-        return (data & ~PTRACE_O_MASK) ? -EINVAL : 0;
+        return 0;
 }
 
 static int ptrace_getsiginfo(struct task_struct *child, siginfo_t *info)