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authorKees Cook <keescook@chromium.org>2013-07-03 15:04:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:41 -0700
commitd8537548c924db3c44afde7646b6e220c7beb79d (patch)
tree619ef33bab975df1946eb118f7d03e6aaed77515 /drivers
parent02aa2a37636c8fa4fb9322d91be46ff8225b7de0 (diff)
drivers: avoid format strings in names passed to alloc_workqueue()
For the workqueue creation interfaces that do not expect format strings, make sure they cannot accidently be parsed that way. Additionally, clean up calls made with a single parameter that would be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/pci/cx18/cx18-driver.c2
-rw-r--r--drivers/message/i2o/driver.c4
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00dev.c2
-rw-r--r--drivers/net/wireless/rtlwifi/base.c2
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c4
-rw-r--r--drivers/pci/hotplug/shpchp_core.c3
-rw-r--r--drivers/scsi/be2iscsi/be_main.c2
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c4
-rw-r--r--drivers/scsi/scsi_transport_fc.c6
9 files changed, 13 insertions, 16 deletions
diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index 67b61cf3e03..004d8ace501 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -695,7 +695,7 @@ static int cx18_create_in_workq(struct cx18 *cx)
{
snprintf(cx->in_workq_name, sizeof(cx->in_workq_name), "%s-in",
cx->v4l2_dev.name);
- cx->in_work_queue = alloc_ordered_workqueue(cx->in_workq_name, 0);
+ cx->in_work_queue = alloc_ordered_workqueue("%s", 0, cx->in_workq_name);
if (cx->in_work_queue == NULL) {
CX18_ERR("Unable to create incoming mailbox handler thread\n");
return -ENOMEM;
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index 8a5b2d8f4da..813eaa33fa1 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -84,8 +84,8 @@ int i2o_driver_register(struct i2o_driver *drv)
osm_debug("Register driver %s\n", drv->name);
if (drv->event) {
- drv->event_queue = alloc_workqueue(drv->name,
- WQ_MEM_RECLAIM, 1);
+ drv->event_queue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1,
+ drv->name);
if (!drv->event_queue) {
osm_err("Could not initialize event queue for driver "
"%s\n", drv->name);
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 90dc1433698..c8b9ef0c21f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1321,7 +1321,7 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
* Initialize work.
*/
rt2x00dev->workqueue =
- alloc_ordered_workqueue(wiphy_name(rt2x00dev->hw->wiphy), 0);
+ alloc_ordered_workqueue("%s", 0, wiphy_name(rt2x00dev->hw->wiphy));
if (!rt2x00dev->workqueue) {
retval = -ENOMEM;
goto exit;
diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index af59dd5718e..a5f223145b0 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -380,7 +380,7 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
/* <2> work queue */
rtlpriv->works.hw = hw;
- rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
+ rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
(void *)rtl_watchdog_wq_callback);
INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 5127f3f4182..b2255736ac8 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -773,14 +773,12 @@ static void pcie_shutdown_notification(struct controller *ctrl)
static int pcie_init_slot(struct controller *ctrl)
{
struct slot *slot;
- char name[32];
slot = kzalloc(sizeof(*slot), GFP_KERNEL);
if (!slot)
return -ENOMEM;
- snprintf(name, sizeof(name), "pciehp-%u", PSN(ctrl));
- slot->wq = alloc_workqueue(name, 0, 0);
+ slot->wq = alloc_workqueue("pciehp-%u", 0, 0, PSN(ctrl));
if (!slot->wq)
goto abort;
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 3100c52c837..d3f757df691 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -128,8 +128,7 @@ static int init_slots(struct controller *ctrl)
slot->hpc_ops = ctrl->hpc_ops;
slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i);
- snprintf(name, sizeof(name), "shpchp-%d", slot->number);
- slot->wq = alloc_workqueue(name, 0, 0);
+ slot->wq = alloc_workqueue("shpchp-%d", 0, 0, slot->number);
if (!slot->wq) {
retval = -ENOMEM;
goto error_info;
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index d24a2867bc2..a1f5ac7a980 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4996,7 +4996,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_%02x_wq",
phba->shost->host_no);
- phba->wq = alloc_workqueue(phba->wq_name, WQ_MEM_RECLAIM, 1);
+ phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, phba->wq_name);
if (!phba->wq) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
"BM_%d : beiscsi_dev_probe-"
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 4d231c12463..b246b3c2691 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -7060,8 +7060,8 @@ skip_retry_init:
}
INIT_WORK(&ha->dpc_work, qla4xxx_do_dpc);
- sprintf(buf, "qla4xxx_%lu_task", ha->host_no);
- ha->task_wq = alloc_workqueue(buf, WQ_MEM_RECLAIM, 1);
+ ha->task_wq = alloc_workqueue("qla4xxx_%lu_task", WQ_MEM_RECLAIM, 1,
+ ha->host_no);
if (!ha->task_wq) {
ql4_printk(KERN_WARNING, ha, "Unable to start task thread!\n");
ret = -ENODEV;
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index e106c276aa0..4628fd5e068 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -435,7 +435,7 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev,
snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name),
"fc_wq_%d", shost->host_no);
- fc_host->work_q = alloc_workqueue(fc_host->work_q_name, 0, 0);
+ fc_host->work_q = alloc_workqueue("%s", 0, 0, fc_host->work_q_name);
if (!fc_host->work_q)
return -ENOMEM;
@@ -443,8 +443,8 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev,
snprintf(fc_host->devloss_work_q_name,
sizeof(fc_host->devloss_work_q_name),
"fc_dl_%d", shost->host_no);
- fc_host->devloss_work_q =
- alloc_workqueue(fc_host->devloss_work_q_name, 0, 0);
+ fc_host->devloss_work_q = alloc_workqueue("%s", 0, 0,
+ fc_host->devloss_work_q_name);
if (!fc_host->devloss_work_q) {
destroy_workqueue(fc_host->work_q);
fc_host->work_q = NULL;