From: Kamal Heib <kamalheib1@gmail.com> mainline inclusion from mainline-v5.17-rc1 commit 0abfc79d724102ec91287e3e77ac8115fcf3ffe9 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBI67U CVE: CVE-2024-57857 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------------- Use the addrconf_addr_eui48() helper function to set the sys_image_guid, Also make sure the GUID is valid EUI-64 identifier. Link: https://lore.kernel.org/r/20211124102336.427637-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Acked-by: Bernard Metzler <bmt@zurich.ibm.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Liu Jian <liujian56@huawei.com> --- drivers/infiniband/sw/siw/siw_verbs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c index 1d4e0dc550e4..b544148b22ac 100644 --- a/drivers/infiniband/sw/siw/siw_verbs.c +++ b/drivers/infiniband/sw/siw/siw_verbs.c @@ -8,6 +8,7 @@ #include <linux/uaccess.h> #include <linux/vmalloc.h> #include <linux/xarray.h> +#include <net/addrconf.h> #include <rdma/iw_cm.h> #include <rdma/ib_verbs.h> @@ -155,7 +156,8 @@ int siw_query_device(struct ib_device *base_dev, struct ib_device_attr *attr, attr->vendor_id = SIW_VENDOR_ID; attr->vendor_part_id = sdev->vendor_part_id; - memcpy(&attr->sys_image_guid, sdev->netdev->dev_addr, 6); + addrconf_addr_eui48((u8 *)&attr->sys_image_guid, + sdev->netdev->dev_addr); return 0; } -- 2.34.1