From: Ma Wupeng mawupeng1@huawei.com

euleros inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7WLVX

---------------------------------------------

Reture false if hnid is bigger than MAX_NUMNODES.

Fixes: 46a7894b5e4c ("mm: gmem: Introduce GMEM") Signed-off-by: Ma Wupeng mawupeng1@huawei.com --- include/linux/gmem.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/linux/gmem.h b/include/linux/gmem.h index e198180b8085..1786f8676376 100644 --- a/include/linux/gmem.h +++ b/include/linux/gmem.h @@ -327,13 +327,14 @@ extern struct hnode *hnodes[];

static inline bool is_hnode(int node) { - return !node_isset(node, node_possible_map) - && node_isset(node, hnode_map); + return (node < MAX_NUMNODES) && !node_isset(node, node_possible_map) && + node_isset(node, hnode_map); }

static inline bool is_hnode_allowed(int node) { - return is_hnode(node) && node_isset(node, current->mems_allowed); + return (node < MAX_NUMNODES) && is_hnode(node) && + node_isset(node, current->mems_allowed); }

static inline struct hnode *get_hnode(unsigned int hnid)