diff --git a/mm/fremap.c b/mm/fremap.c index 0cd4c11488edf8c8fd33346e9b94e28fb3272aa1..6a8da7ee85fd58e7d0857a185239ef6af57a61d8 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -163,7 +163,8 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, * and that the remapped range is valid and fully within * the single existing vma. */ - if (!vma || !(vma->vm_flags & VM_SHARED)) + vm_flags = vma->vm_flags; + if (!vma || !(vm_flags & VM_SHARED)) goto out; if (!vma->vm_ops || !vma->vm_ops->remap_pages) @@ -254,7 +255,8 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, */ out: - vm_flags = vma->vm_flags; + if (vma) + vm_flags = vma->vm_flags; if (likely(!has_write_lock)) up_read(&mm->mmap_sem); else