hugetlb: fix memoryleak in hugetlb_mcopy_atomic_pte
commit da9a298f upstream. When alloc_huge_page fails, *pagep is set to NULL without put_page first. So the hugepage indicated by *pagep is leaked. Link: https://lkml.kernel.org/r/20220709092629.54291-1-linmiaohe@huawei.com Fixes: 8cc5fcbb ("mm, hugetlb: fix racy resv_huge_pages underflow on UFFDIO_COPY") Signed-off-by:Miaohe Lin <linmiaohe@huawei.com> Acked-by:
Muchun Song <songmuchun@bytedance.com> Reviewed-by:
Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by:
Baolin Wang <baolin.wang@linux.alibaba.com> Reviewed-by:
Mike Kravetz <mike.kravetz@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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e786be43
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