diff options
| -rw-r--r-- | arch/i386/kernel/sysenter.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/i386/kernel/sysenter.c b/arch/i386/kernel/sysenter.c index ff4ee6f3326b..6deb159d08e0 100644 --- a/arch/i386/kernel/sysenter.c +++ b/arch/i386/kernel/sysenter.c @@ -336,7 +336,9 @@ struct vm_area_struct *get_gate_vma(struct task_struct *tsk) int in_gate_area(struct task_struct *task, unsigned long addr) { - return 0; + const struct vm_area_struct *vma = get_gate_vma(task); + + return vma && addr >= vma->vm_start && addr < vma->vm_end; } int in_gate_area_no_task(unsigned long addr) |