Re: Linux 5.4.158

From: Greg Kroah-Hartman
Date: Sat Nov 06 2021 - 09:40:10 EST

diff --git a/Makefile b/Makefile
index 49d639fe5a80..cef1d2704c41 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 4
-SUBLEVEL = 157
+SUBLEVEL = 158
EXTRAVERSION =
NAME = Kleptomaniac Octopus

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index af58768a0393..702284bcd467 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -375,9 +375,6 @@ static int amba_device_try_add(struct amba_device *dev, struct resource *parent)
void __iomem *tmp;
int i, ret;

- WARN_ON(dev->irq[0] == (unsigned int)-1);
- WARN_ON(dev->irq[1] == (unsigned int)-1);
-
ret = request_resource(parent, &dev->res);
if (ret)
goto err_out;
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index a7b88ca8b97b..fe81c565e7ef 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -463,7 +463,6 @@ static void ttm_transfered_destroy(struct ttm_buffer_object *bo)
struct ttm_transfer_obj *fbo;

fbo = container_of(bo, struct ttm_transfer_obj, base);
- dma_resv_fini(&fbo->base.base._resv);
ttm_bo_put(fbo->bo);
kfree(fbo);
}
diff --git a/drivers/media/firewire/firedtv-avc.c b/drivers/media/firewire/firedtv-avc.c
index 2bf9467b917d..71991f8638e6 100644
--- a/drivers/media/firewire/firedtv-avc.c
+++ b/drivers/media/firewire/firedtv-avc.c
@@ -1165,7 +1165,11 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
read_pos += program_info_length;
write_pos += program_info_length;
}
- while (read_pos < length) {
+ while (read_pos + 4 < length) {
+ if (write_pos + 4 >= sizeof(c->operand) - 4) {
+ ret = -EINVAL;
+ goto out;
+ }
c->operand[write_pos++] = msg[read_pos++];
c->operand[write_pos++] = msg[read_pos++];
c->operand[write_pos++] = msg[read_pos++];
@@ -1177,13 +1181,17 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length)
c->operand[write_pos++] = es_info_length >> 8;
c->operand[write_pos++] = es_info_length & 0xff;
if (es_info_length > 0) {
+ if (read_pos >= length) {
+ ret = -EINVAL;
+ goto out;
+ }
pmt_cmd_id = msg[read_pos++];
if (pmt_cmd_id != 1 && pmt_cmd_id != 4)
dev_err(fdtv->device, "invalid pmt_cmd_id %d at stream level\n",
pmt_cmd_id);

- if (es_info_length > sizeof(c->operand) - 4 -
- write_pos) {
+ if (es_info_length > sizeof(c->operand) - 4 - write_pos ||
+ es_info_length > length - read_pos) {
ret = -EINVAL;
goto out;
}
diff --git a/drivers/media/firewire/firedtv-ci.c b/drivers/media/firewire/firedtv-ci.c
index 9363d005e2b6..e0d57e09dab0 100644
--- a/drivers/media/firewire/firedtv-ci.c
+++ b/drivers/media/firewire/firedtv-ci.c
@@ -134,6 +134,8 @@ static int fdtv_ca_pmt(struct firedtv *fdtv, void *arg)
} else {
data_length = msg->msg[3];
}
+ if (data_length > sizeof(msg->msg) - data_pos)
+ return -EINVAL;

return avc_ca_pmt(fdtv, &msg->msg[data_pos], data_length);
}
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index a109120da0e7..22beeb5be9c4 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -1898,13 +1898,13 @@ static int lan743x_rx_next_index(struct lan743x_rx *rx, int index)
return ((++index) % rx->ring_size);
}

-static struct sk_buff *lan743x_rx_allocate_skb(struct lan743x_rx *rx)
+static struct sk_buff *lan743x_rx_allocate_skb(struct lan743x_rx *rx, gfp_t gfp)
{
int length = 0;

length = (LAN743X_MAX_FRAME_SIZE + ETH_HLEN + 4 + RX_HEAD_PADDING);
return __netdev_alloc_skb(rx->adapter->netdev,
- length, GFP_ATOMIC | GFP_DMA);
+ length, gfp);
}

static void lan743x_rx_update_tail(struct lan743x_rx *rx, int index)
@@ -2077,7 +2077,8 @@ static int lan743x_rx_process_packet(struct lan743x_rx *rx)
struct sk_buff *new_skb = NULL;
int packet_length;

- new_skb = lan743x_rx_allocate_skb(rx);
+ new_skb = lan743x_rx_allocate_skb(rx,
+ GFP_ATOMIC | GFP_DMA);
if (!new_skb) {
/* failed to allocate next skb.
* Memory is very low.
@@ -2314,7 +2315,8 @@ static int lan743x_rx_ring_init(struct lan743x_rx *rx)

rx->last_head = 0;
for (index = 0; index < rx->ring_size; index++) {
- struct sk_buff *new_skb = lan743x_rx_allocate_skb(rx);
+ struct sk_buff *new_skb = lan743x_rx_allocate_skb(rx,
+ GFP_KERNEL);

ret = lan743x_rx_init_ring_element(rx, index, new_skb);
if (ret)
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 86b965875540..d53e945dd08f 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -128,20 +128,14 @@ efx_ethtool_get_link_ksettings(struct net_device *net_dev,
{
struct efx_nic *efx = netdev_priv(net_dev);
struct efx_link_state *link_state = &efx->link_state;
- u32 supported;

mutex_lock(&efx->mac_lock);
efx->phy_op->get_link_ksettings(efx, cmd);
mutex_unlock(&efx->mac_lock);

/* Both MACs support pause frames (bidirectional and respond-only) */
- ethtool_convert_link_mode_to_legacy_u32(&supported,
- cmd->link_modes.supported);
-
- supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
-
- ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
- supported);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);

if (LOOPBACK_INTERNAL(efx)) {
cmd->base.speed = link_state->speed;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 9b626c169554..f08ed52d51f3 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -1036,8 +1036,6 @@ static struct sk_buff *vrf_ip6_rcv(struct net_device *vrf_dev,
bool need_strict = rt6_need_strict(&ipv6_hdr(skb)->daddr);
bool is_ndisc = ipv6_ndisc_frame(skb);

- nf_reset_ct(skb);
-
/* loopback, multicast & non-ND link-local traffic; do not push through
* packet taps again. Reset pkt_type for upper layers to process skb.
* For strict packets with a source LLA, determine the dst using the
@@ -1094,8 +1092,6 @@ static struct sk_buff *vrf_ip_rcv(struct net_device *vrf_dev,
skb->skb_iif = vrf_dev->ifindex;
IPCB(skb)->flags |= IPSKB_L3SLAVE;

- nf_reset_ct(skb);
-
if (ipv4_is_multicast(ip_hdr(skb)->daddr))
goto out;

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 1f5b5c8a7f72..1ce3f90f782f 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -555,8 +555,10 @@ EXPORT_SYMBOL(scsi_device_get);
*/
void scsi_device_put(struct scsi_device *sdev)
{
- module_put(sdev->host->hostt->module);
+ struct module *mod = sdev->host->hostt->module;
+
put_device(&sdev->sdev_gendev);
+ module_put(mod);
}
EXPORT_SYMBOL(scsi_device_put);

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 6aeb79e744e0..12064ce76777 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -438,9 +438,12 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)
struct list_head *this, *tmp;
struct scsi_vpd *vpd_pg80 = NULL, *vpd_pg83 = NULL;
unsigned long flags;
+ struct module *mod;

sdev = container_of(work, struct scsi_device, ew.work);

+ mod = sdev->host->hostt->module;
+
scsi_dh_release_device(sdev);

parent = sdev->sdev_gendev.parent;
@@ -481,11 +484,17 @@ static void scsi_device_dev_release_usercontext(struct work_struct *work)

if (parent)
put_device(parent);
+ module_put(mod);
}

static void scsi_device_dev_release(struct device *dev)
{
struct scsi_device *sdp = to_scsi_device(dev);
+
+ /* Set module pointer as NULL in case of module unloading */
+ if (!try_module_get(sdp->host->hostt->module))
+ sdp->host->hostt->module = NULL;
+
execute_in_process_context(scsi_device_dev_release_usercontext,
&sdp->ew);
}
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 48ff9c66ae46..d0f45600b669 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2636,7 +2636,6 @@ int usb_add_hcd(struct usb_hcd *hcd,
{
int retval;
struct usb_device *rhdev;
- struct usb_hcd *shared_hcd;

if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) {
hcd->phy_roothub = usb_phy_roothub_alloc(hcd->self.sysdev);
@@ -2793,26 +2792,13 @@ int usb_add_hcd(struct usb_hcd *hcd,
goto err_hcd_driver_start;
}

- /* starting here, usbcore will pay attention to the shared HCD roothub */
- shared_hcd = hcd->shared_hcd;
- if (!usb_hcd_is_primary_hcd(hcd) && shared_hcd && HCD_DEFER_RH_REGISTER(shared_hcd)) {
- retval = register_root_hub(shared_hcd);
- if (retval != 0)
- goto err_register_root_hub;
-
- if (shared_hcd->uses_new_polling && HCD_POLL_RH(shared_hcd))
- usb_hcd_poll_rh_status(shared_hcd);
- }
-
/* starting here, usbcore will pay attention to this root hub */
- if (!HCD_DEFER_RH_REGISTER(hcd)) {
- retval = register_root_hub(hcd);
- if (retval != 0)
- goto err_register_root_hub;
+ retval = register_root_hub(hcd);
+ if (retval != 0)
+ goto err_register_root_hub;

- if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
- usb_hcd_poll_rh_status(hcd);
- }
+ if (hcd->uses_new_polling && HCD_POLL_RH(hcd))
+ usb_hcd_poll_rh_status(hcd);

return retval;

@@ -2855,7 +2841,6 @@ EXPORT_SYMBOL_GPL(usb_add_hcd);
void usb_remove_hcd(struct usb_hcd *hcd)
{
struct usb_device *rhdev = hcd->self.root_hub;
- bool rh_registered;

dev_info(hcd->self.controller, "remove, state %x\n", hcd->state);

@@ -2866,7 +2851,6 @@ void usb_remove_hcd(struct usb_hcd *hcd)

dev_dbg(hcd->self.controller, "roothub graceful disconnect\n");
spin_lock_irq (&hcd_root_hub_lock);
- rh_registered = hcd->rh_registered;
hcd->rh_registered = 0;
spin_unlock_irq (&hcd_root_hub_lock);

@@ -2876,8 +2860,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
cancel_work_sync(&hcd->died_work);

mutex_lock(&usb_bus_idr_lock);
- if (rh_registered)
- usb_disconnect(&rhdev); /* Sets rhdev to NULL */
+ usb_disconnect(&rhdev); /* Sets rhdev to NULL */
mutex_unlock(&usb_bus_idr_lock);

/*
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 4ef7484dff8b..4bb850370bb6 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -693,7 +693,6 @@ int xhci_run(struct usb_hcd *hcd)
if (ret)
xhci_free_command(xhci, command);
}
- set_bit(HCD_FLAG_DEFER_RH_REGISTER, &hcd->flags);
xhci_dbg_trace(xhci, trace_xhci_dbg_init,
"Finished xhci_run for USB2 roothub");

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index c0eb85b2981e..712b2a603645 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -124,7 +124,6 @@ struct usb_hcd {
#define HCD_FLAG_RH_RUNNING 5 /* root hub is running? */
#define HCD_FLAG_DEAD 6 /* controller has died? */
#define HCD_FLAG_INTF_AUTHORIZED 7 /* authorize interfaces? */
-#define HCD_FLAG_DEFER_RH_REGISTER 8 /* Defer roothub registration */

/* The flags can be tested using these macros; they are likely to
* be slightly faster than test_bit().
@@ -135,7 +134,6 @@ struct usb_hcd {
#define HCD_WAKEUP_PENDING(hcd) ((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
#define HCD_RH_RUNNING(hcd) ((hcd)->flags & (1U << HCD_FLAG_RH_RUNNING))
#define HCD_DEAD(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEAD))
-#define HCD_DEFER_RH_REGISTER(hcd) ((hcd)->flags & (1U << HCD_FLAG_DEFER_RH_REGISTER))

/*
* Specifies if interfaces are authorized by default