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path: root/drivers/infiniband/core/iwcm.c
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Diffstat (limited to 'drivers/infiniband/core/iwcm.c')
-rw-r--r--drivers/infiniband/core/iwcm.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index ba668d49c751..476abc74178e 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -502,17 +502,21 @@ static void iw_cm_check_wildcard(struct sockaddr_storage *pm_addr,
*/
static int iw_cm_map(struct iw_cm_id *cm_id, bool active)
{
+ const char *devname = dev_name(&cm_id->device->dev);
+ const char *ifname = cm_id->device->iwcm->ifname;
struct iwpm_dev_data pm_reg_msg;
struct iwpm_sa_data pm_msg;
int status;
+ if (strlen(devname) >= sizeof(pm_reg_msg.dev_name) ||
+ strlen(ifname) >= sizeof(pm_reg_msg.if_name))
+ return -EINVAL;
+
cm_id->m_local_addr = cm_id->local_addr;
cm_id->m_remote_addr = cm_id->remote_addr;
- memcpy(pm_reg_msg.dev_name, dev_name(&cm_id->device->dev),
- sizeof(pm_reg_msg.dev_name));
- memcpy(pm_reg_msg.if_name, cm_id->device->iwcm->ifname,
- sizeof(pm_reg_msg.if_name));
+ strncpy(pm_reg_msg.dev_name, devname, sizeof(pm_reg_msg.dev_name));
+ strncpy(pm_reg_msg.if_name, ifname, sizeof(pm_reg_msg.if_name));
if (iwpm_register_pid(&pm_reg_msg, RDMA_NL_IWCM) ||
!iwpm_valid_pid())