Fixed system crash due to SLI Port provisioning of invalid resource count
Signed-off-by: James Smart <james.smart@xxxxxxxxxx>
---
lpfc_sli.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff -upNr a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
--- a/drivers/scsi/lpfc/lpfc_sli.c 2013-01-02 13:13:08.951087785 -0500
+++ b/drivers/scsi/lpfc/lpfc_sli.c 2013-01-02 13:13:10.046087810 -0500
@@ -5639,6 +5639,13 @@ lpfc_sli4_alloc_resource_identifiers(str
}
/* RPIs. */
count = phba->sli4_hba.max_cfg_param.max_rpi;
+ if (count <= 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3279 Invalid provisioning of "
+ "rpi:%d\n", count);
+ rc = -EINVAL;
+ goto err_exit;
+ }
base = phba->sli4_hba.max_cfg_param.rpi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.rpi_bmask = kzalloc(longs *
@@ -5661,6 +5668,13 @@ lpfc_sli4_alloc_resource_identifiers(str
/* VPIs. */
count = phba->sli4_hba.max_cfg_param.max_vpi;
+ if (count <= 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3280 Invalid provisioning of "
+ "vpi:%d\n", count);
+ rc = -EINVAL;
+ goto free_rpi_ids;
+ }
base = phba->sli4_hba.max_cfg_param.vpi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->vpi_bmask = kzalloc(longs *
@@ -5683,6 +5697,13 @@ lpfc_sli4_alloc_resource_identifiers(str
/* XRIs. */
count = phba->sli4_hba.max_cfg_param.max_xri;
+ if (count <= 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3281 Invalid provisioning of "
+ "xri:%d\n", count);
+ rc = -EINVAL;
+ goto free_vpi_ids;
+ }
base = phba->sli4_hba.max_cfg_param.xri_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.xri_bmask = kzalloc(longs *
@@ -5706,6 +5727,13 @@ lpfc_sli4_alloc_resource_identifiers(str
/* VFIs. */
count = phba->sli4_hba.max_cfg_param.max_vfi;
+ if (count <= 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "3282 Invalid provisioning of "
+ "vfi:%d\n", count);
+ rc = -EINVAL;
+ goto free_xri_ids;
+ }
base = phba->sli4_hba.max_cfg_param.vfi_base;
longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
phba->sli4_hba.vfi_bmask = kzalloc(longs *
--
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