mirror of https://gitee.com/openkylin/linux.git
[PATCH] Fix vma argument in get_usr_pages() for gate areas
The system call gate area handling called vm_normal_page() with the wrong vma (which was always NULL, and caused an oops). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -988,7 +988,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
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return i ? : -EFAULT;
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}
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if (pages) {
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struct page *page = vm_normal_page(vma, start, *pte);
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struct page *page = vm_normal_page(gate_vma, start, *pte);
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pages[i] = page;
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if (page)
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get_page(page);
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