scsi: lpfc: fix potential buffer overflow.

This patch fixes a potential buffer overflow in lpfc_nvme_info_show().

Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Maurizio Lombardi 2017-04-18 11:55:51 +02:00 committed by Martin K. Petersen
parent cb22bdc8cd
commit ea98ab34c4
1 changed files with 2 additions and 2 deletions

View File

@ -181,7 +181,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
wwn_to_u64(vport->fc_nodename.u.wwn),
phba->targetport->port_id);
len += snprintf(buf + len, PAGE_SIZE,
len += snprintf(buf + len, PAGE_SIZE - len,
"\nNVME Target: Statistics\n");
tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
len += snprintf(buf+len, PAGE_SIZE-len,
@ -326,7 +326,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
}
spin_unlock_irq(shost->host_lock);
len += snprintf(buf + len, PAGE_SIZE, "\nNVME Statistics\n");
len += snprintf(buf + len, PAGE_SIZE - len, "\nNVME Statistics\n");
len += snprintf(buf+len, PAGE_SIZE-len,
"LS: Xmt %016llx Cmpl %016llx\n",
phba->fc4NvmeLsRequests,