From 291fef26e0f85bd2c1f7152138fc3459e7a00ea1 Mon Sep 17 00:00:00 2001 From: Jitendra Bhivare Date: Thu, 4 Feb 2016 15:49:16 +0530 Subject: [PATCH] be2iscsi: Fix MCC WRB leak in open_connection In open with IP of unknown address family, only tag is freed and error returned. MCC WRB allocated for the operation is not freed. Added check for supported family of IP in the beginning before allocating the tag and WRB. Signed-off-by: Jitendra Bhivare Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/be2iscsi/be_mgmt.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index 85044b855be2..ccac1d7c7adc 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c @@ -829,6 +829,13 @@ int mgmt_open_connection(struct beiscsi_hba *phba, unsigned short cid = beiscsi_ep->ep_cid; struct be_sge *sge; + if (dst_addr->sa_family != PF_INET && dst_addr->sa_family != PF_INET6) { + beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, + "BG_%d : unknown addr family %d\n", + dst_addr->sa_family); + return -EINVAL; + } + phwi_ctrlr = phba->phwi_ctrlr; phwi_context = phwi_ctrlr->phwi_ctxt; @@ -868,7 +875,8 @@ int mgmt_open_connection(struct beiscsi_hba *phba, beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr; beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port); beiscsi_ep->ip_type = BE2_IPV4; - } else if (dst_addr->sa_family == PF_INET6) { + } else { + /* else its PF_INET6 family */ req->ip_address.ip_type = BE2_IPV6; memcpy(&req->ip_address.addr, &daddr_in6->sin6_addr.in6_u.u6_addr8, 16); @@ -877,14 +885,6 @@ int mgmt_open_connection(struct beiscsi_hba *phba, memcpy(&beiscsi_ep->dst6_addr, &daddr_in6->sin6_addr.in6_u.u6_addr8, 16); beiscsi_ep->ip_type = BE2_IPV6; - } else{ - beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG, - "BG_%d : unknown addr family %d\n", - dst_addr->sa_family); - mutex_unlock(&ctrl->mbox_lock); - free_mcc_tag(&phba->ctrl, tag); - return -EINVAL; - } req->cid = cid; i = phba->nxt_cqid++; -- 2.30.2