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Potential Vulnerability in Cloned Code #23

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Potential Vulnerability in Cloned Code #23

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2 changes: 2 additions & 0 deletions mm/rmap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -202,6 +202,7 @@ int __anon_vma_prepare(struct vm_area_struct *vma)
if (unlikely(!anon_vma))
goto out_enomem_free_avc;
anon_vma->num_children++; /* self-parent link for new root */
anon_vma->num_children++; /* self-parent link for new root */
allocated = anon_vma;
}

Expand Down Expand Up @@ -360,6 +361,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
if (!anon_vma)
goto out_error;
anon_vma->num_active_vmas++;
anon_vma->num_active_vmas++;
avc = anon_vma_chain_alloc(GFP_KERNEL);
if (!avc)
goto out_error_free_anon_vma;
Expand Down