diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-01-25 11:44:34 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-01-26 22:08:57 -0500 |
| commit | 0be310979e5e1272d4c5b557642df4da4ce7eba4 (patch) | |
| tree | be500d9a6d8f2bd115d63f47000a9839bfc3b1a3 /drivers/scsi/lpfc/lpfc_hbadisc.c | |
| parent | bc2b4e68023174e508a4a9605384a7fda475f8a8 (diff) | |
scsi: lpfc: Fix ancient double free
The "pmb" pointer is freed at the start of the function and then freed
again in the error handling code.
Link: https://lore.kernel.org/r/YA6E8rO51hE56SVw@mwanda
Fixes: 92d7f7b0cde3 ("[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_hbadisc.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_hbadisc.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index f890b5b7e6ca..48ca4a612f80 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -1155,13 +1155,14 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) struct lpfc_vport *vport = pmb->vport; LPFC_MBOXQ_t *sparam_mb; struct lpfc_dmabuf *sparam_mp; + u16 status = pmb->u.mb.mbxStatus; int rc; - if (pmb->u.mb.mbxStatus) - goto out; - mempool_free(pmb, phba->mbox_mem_pool); + if (status) + goto out; + /* don't perform discovery for SLI4 loopback diagnostic test */ if ((phba->sli_rev == LPFC_SLI_REV4) && !(phba->hba_flag & HBA_FCOE_MODE) && @@ -1224,12 +1225,10 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) out: lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, - "0306 CONFIG_LINK mbxStatus error x%x " - "HBA state x%x\n", - pmb->u.mb.mbxStatus, vport->port_state); -sparam_out: - mempool_free(pmb, phba->mbox_mem_pool); + "0306 CONFIG_LINK mbxStatus error x%x HBA state x%x\n", + status, vport->port_state); +sparam_out: lpfc_linkdown(phba); lpfc_printf_vlog(vport, KERN_ERR, LOG_TRACE_EVENT, |