diff options
Diffstat (limited to 'mm/mremap.c')
| -rw-r--r-- | mm/mremap.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/mremap.c b/mm/mremap.c index e0fba9004246..8644ff278f02 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -716,7 +716,7 @@ static unsigned long move_vma(struct vm_area_struct *vma, if (excess) { vma->vm_flags |= VM_ACCOUNT; if (split) - vma->vm_next->vm_flags |= VM_ACCOUNT; + find_vma(mm, vma->vm_end)->vm_flags |= VM_ACCOUNT; } return new_addr; @@ -866,9 +866,10 @@ out: static int vma_expandable(struct vm_area_struct *vma, unsigned long delta) { unsigned long end = vma->vm_end + delta; + if (end < vma->vm_end) /* overflow */ return 0; - if (vma->vm_next && vma->vm_next->vm_start < end) /* intersection */ + if (find_vma_intersection(vma->vm_mm, vma->vm_end, end)) return 0; if (get_unmapped_area(NULL, vma->vm_start, end - vma->vm_start, 0, MAP_FIXED) & ~PAGE_MASK) |