dc124c849c
commit da9a298f5fad0dc615079a340da42928bc5b138e 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: 8cc5fcbb5be8 ("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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.