From: James Smart Date: Fri, 16 Jun 2017 05:56:49 +0000 (-0700) Subject: scsi: lpfc: Fix crash in lpfc_sli_ringtxcmpl_put when nvmet gets an abort request. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4550f9c75e6abdc1f80170adf74d7610d059afd7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git scsi: lpfc: Fix crash in lpfc_sli_ringtxcmpl_put when nvmet gets an abort request. When running nvme detach-ns /dev/nvme0n1 -n 1 command, the nvmet lpfc driver crashes with this stack dump: kernel BUG at /root/NVME/lpfc_8.4/lpfc_sli.c:1393! invalid opcode: 0000 [#1] SMP Workqueue: nvmet-fc-cpu0 nvmet_fc_do_work_on_cpu [nvmet_fc] lpfc_sli4_issue_wqe+0x357/0x440 [lpfc] lpfc_nvmet_xmt_fcp_abort+0x36b/0x5c0 [lpfc] nvmet_fc_abort_op+0x30/0x50 [nvmet_fc] nvmet_fc_do_work_on_cpu+0xd9/0x130 [nvmet_fc] process_one_work+0x14e/0x410 worker_thread+0x116/0x490 kthread+0xc7/0xe0 ret_from_fork+0x3f/0x70 Crash is due to an uninitialized iocbq->vport pointer. Explicitly set the iocbq->vport field to phba->pport in lpfc_nvmet_sol_fcp_issue_abort as it does all abort iocbq initialization in the routine. Using phba->pport is ok because target does not support NPIV instances. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 5fb29735e236..7dc061a14f95 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -2523,6 +2523,7 @@ lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba, abts_wqeq->iocb_cmpl = 0; abts_wqeq->iocb_flag |= LPFC_IO_NVME; abts_wqeq->context2 = ctxp; + abts_wqeq->vport = phba->pport; rc = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abts_wqeq); spin_unlock_irqrestore(&phba->hbalock, flags); if (rc == WQE_SUCCESS) {