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| author | Miaohe Lin <linmiaohe@huawei.com> | 2021-02-24 12:06:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-03 16:44:20 +0100 |
| commit | 6fd892537ab459787d217b35855b974dc2fc0bbe (patch) | |
| tree | c96abc8dc5dd25c5fb6f7365033c1e865ff6db8a /mm/nobootmem.c | |
| parent | 78d7a8be2ae5dd98ce8249c220ae34159272978a (diff) | |
mm/hugetlb: fix potential double free in hugetlb_register_node() error path
[ Upstream commit cc2205a67dec5a700227a693fc113441e73e4641 ]
In hugetlb_sysfs_add_hstate(), we would do kobject_put() on hstate_kobjs
when failed to create sysfs group but forget to set hstate_kobjs to NULL.
Then in hugetlb_register_node() error path, we may free it again via
hugetlb_unregister_node().
Link: https://lkml.kernel.org/r/20210107123249.36964-1-linmiaohe@huawei.com
Fixes: a3437870160c ("hugetlb: new sysfs interface")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Muchun Song <smuchun@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm/nobootmem.c')
0 files changed, 0 insertions, 0 deletions