diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index 42674c0748cb..64421ea5a403 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5089,10 +5089,14 @@ static vm_fault_t do_cow_fault(struct vm_fault *vmf) if (ret & VM_FAULT_DONE_COW) return ret; - copy_user_highpage(vmf->cow_page, vmf->page, vmf->address, vma); + if (copy_mc_user_highpage(vmf->cow_page, vmf->page, vmf->address, vma)) { + ret = VM_FAULT_HWPOISON; + goto unlock; + } __folio_mark_uptodate(folio); ret |= finish_fault(vmf); +unlock: unlock_page(vmf->page); put_page(vmf->page); if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))) |