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-rw-r--r--drivers/input/misc/ims-pcu.c16
-rw-r--r--drivers/net/macvtap.c2
-rw-r--r--drivers/net/ppp/ppp_generic.c20
-rw-r--r--drivers/net/tun.c7
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c3
-rw-r--r--drivers/staging/panel/panel.c23
-rw-r--r--drivers/target/iscsi/iscsi_target.c19
-rw-r--r--drivers/target/target_core_tpg.c4
-rw-r--r--drivers/target/target_core_transport.c4
-rw-r--r--drivers/usb/misc/usbtest.c5
10 files changed, 76 insertions, 27 deletions
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index f4e8fbec6a94..b5304e264881 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1635,13 +1635,25 @@ ims_pcu_get_cdc_union_desc(struct usb_interface *intf)
return NULL;
}
- while (buflen > 0) {
+ while (buflen >= sizeof(*union_desc)) {
union_desc = (struct usb_cdc_union_desc *)buf;
+ if (union_desc->bLength > buflen) {
+ dev_err(&intf->dev, "Too large descriptor\n");
+ return NULL;
+ }
+
if (union_desc->bDescriptorType == USB_DT_CS_INTERFACE &&
union_desc->bDescriptorSubType == USB_CDC_UNION_TYPE) {
dev_dbg(&intf->dev, "Found union header\n");
- return union_desc;
+
+ if (union_desc->bLength >= sizeof(*union_desc))
+ return union_desc;
+
+ dev_err(&intf->dev,
+ "Union descriptor to short (%d vs %zd\n)",
+ union_desc->bLength, sizeof(*union_desc));
+ return NULL;
}
buflen -= union_desc->bLength;
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 79de9608ac48..ed96fdefd8e5 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -1117,6 +1117,8 @@ static long macvtap_ioctl(struct file *file, unsigned int cmd,
case TUNSETSNDBUF:
if (get_user(s, sp))
return -EFAULT;
+ if (s <= 0)
+ return -EINVAL;
q->sk.sk_sndbuf = s;
return 0;
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index e5bb870b5461..dc454138d600 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -1110,7 +1110,17 @@ ppp_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats64)
static struct lock_class_key ppp_tx_busylock;
static int ppp_dev_init(struct net_device *dev)
{
+ struct ppp *ppp;
+
dev->qdisc_tx_busylock = &ppp_tx_busylock;
+
+ ppp = netdev_priv(dev);
+ /* Let the netdevice take a reference on the ppp file. This ensures
+ * that ppp_destroy_interface() won't run before the device gets
+ * unregistered.
+ */
+ atomic_inc(&ppp->file.refcnt);
+
return 0;
}
@@ -1133,6 +1143,15 @@ static void ppp_dev_uninit(struct net_device *dev)
wake_up_interruptible(&ppp->file.rwait);
}
+static void ppp_dev_priv_destructor(struct net_device *dev)
+{
+ struct ppp *ppp;
+
+ ppp = netdev_priv(dev);
+ if (atomic_dec_and_test(&ppp->file.refcnt))
+ ppp_destroy_interface(ppp);
+}
+
static const struct net_device_ops ppp_netdev_ops = {
.ndo_init = ppp_dev_init,
.ndo_uninit = ppp_dev_uninit,
@@ -1150,6 +1169,7 @@ static void ppp_setup(struct net_device *dev)
dev->tx_queue_len = 3;
dev->type = ARPHRD_PPP;
dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+ dev->destructor = ppp_dev_priv_destructor;
netif_keep_dst(dev);
}
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 89ad2b750531..1b0184b3818a 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1685,6 +1685,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
if (!dev)
return -ENOMEM;
+ err = dev_get_valid_name(net, dev, name);
+ if (err < 0)
+ goto err_free_dev;
dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
@@ -2072,6 +2075,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
ret = -EFAULT;
break;
}
+ if (sndbuf <= 0) {
+ ret = -EINVAL;
+ break;
+ }
tun->sndbuf = sndbuf;
tun_set_sndbuf(tun);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
index 5fecae0ba52e..83e5aa6a9f28 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/cfg80211.c
@@ -4295,9 +4295,6 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 0);
if (err < 0)
brcmf_err("setting AP mode failed %d\n", err);
- err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 0);
- if (err < 0)
- brcmf_err("setting INFRA mode failed %d\n", err);
if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_MBSS))
brcmf_fil_iovar_int_set(ifp, "mbss", 0);
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_REGULATORY,
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index 70b8f4fabfad..e658e11e1829 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -1431,17 +1431,25 @@ static ssize_t lcd_write(struct file *file,
static int lcd_open(struct inode *inode, struct file *file)
{
+ int ret;
+
+ ret = -EBUSY;
if (!atomic_dec_and_test(&lcd_available))
- return -EBUSY; /* open only once at a time */
+ goto fail; /* open only once at a time */
+ ret = -EPERM;
if (file->f_mode & FMODE_READ) /* device is write-only */
- return -EPERM;
+ goto fail;
if (lcd.must_clear) {
lcd_clear_display();
lcd.must_clear = false;
}
return nonseekable_open(inode, file);
+
+ fail:
+ atomic_inc(&lcd_available);
+ return ret;
}
static int lcd_release(struct inode *inode, struct file *file)
@@ -1704,14 +1712,21 @@ static ssize_t keypad_read(struct file *file,
static int keypad_open(struct inode *inode, struct file *file)
{
+ int ret;
+
+ ret = -EBUSY;
if (!atomic_dec_and_test(&keypad_available))
- return -EBUSY; /* open only once at a time */
+ goto fail; /* open only once at a time */
+ ret = -EPERM;
if (file->f_mode & FMODE_WRITE) /* device is read-only */
- return -EPERM;
+ goto fail;
keypad_buflen = 0; /* flush the buffer on opening */
return 0;
+ fail:
+ atomic_inc(&keypad_available);
+ return ret;
}
static int keypad_release(struct inode *inode, struct file *file)
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 1ff1c83e2df5..fd493412b172 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1759,7 +1759,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
struct iscsi_tm *hdr;
int out_of_order_cmdsn = 0, ret;
bool sess_ref = false;
- u8 function;
+ u8 function, tcm_function = TMR_UNKNOWN;
hdr = (struct iscsi_tm *) buf;
hdr->flags &= ~ISCSI_FLAG_CMD_FINAL;
@@ -1805,10 +1805,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* LIO-Target $FABRIC_MOD
*/
if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
-
- u8 tcm_function;
- int ret;
-
transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
conn->sess->se_sess, 0, DMA_NONE,
TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
@@ -1844,15 +1840,14 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
-
- ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req,
- tcm_function, GFP_KERNEL);
- if (ret < 0)
- return iscsit_add_reject_cmd(cmd,
+ }
+ ret = core_tmr_alloc_req(&cmd->se_cmd, cmd->tmr_req, tcm_function,
+ GFP_KERNEL);
+ if (ret < 0)
+ return iscsit_add_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
- cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
- }
+ cmd->tmr_req->se_tmr_req = cmd->se_cmd.se_tmr_req;
cmd->iscsi_opcode = ISCSI_OP_SCSI_TMFUNC;
cmd->i_state = ISTATE_SEND_TASKMGTRSP;
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index f69f4902dc07..ee16a45f1607 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -350,7 +350,7 @@ void core_tpg_del_initiator_node_acl(struct se_node_acl *acl)
if (acl->dynamic_node_acl) {
acl->dynamic_node_acl = 0;
}
- list_del(&acl->acl_list);
+ list_del_init(&acl->acl_list);
tpg->num_node_acls--;
mutex_unlock(&tpg->acl_node_mutex);
@@ -572,7 +572,7 @@ int core_tpg_deregister(struct se_portal_group *se_tpg)
* in transport_deregister_session().
*/
list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
- list_del(&nacl->acl_list);
+ list_del_init(&nacl->acl_list);
se_tpg->num_node_acls--;
core_tpg_wait_for_nacl_pr_ref(nacl);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index f71bedea973a..a42054edd427 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -431,7 +431,7 @@ static void target_complete_nacl(struct kref *kref)
}
mutex_lock(&se_tpg->acl_node_mutex);
- list_del(&nacl->acl_list);
+ list_del_init(&nacl->acl_list);
mutex_unlock(&se_tpg->acl_node_mutex);
core_tpg_wait_for_nacl_pr_ref(nacl);
@@ -503,7 +503,7 @@ void transport_free_session(struct se_session *se_sess)
spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags);
if (se_nacl->dynamic_stop)
- list_del(&se_nacl->acl_list);
+ list_del_init(&se_nacl->acl_list);
}
mutex_unlock(&se_tpg->acl_node_mutex);
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 2e947dc94e32..bc92a498ec03 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -185,12 +185,13 @@ found:
return tmp;
}
- if (in) {
+ if (in)
dev->in_pipe = usb_rcvbulkpipe(udev,
in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ if (out)
dev->out_pipe = usb_sndbulkpipe(udev,
out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
- }
+
if (iso_in) {
dev->iso_in = &iso_in->desc;
dev->in_iso_pipe = usb_rcvisocpipe(udev,
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-08 09:28:35 +0000