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Networking fixes for 5.11-rc5, including fixes from bpf, wireless,

Browse Source 
and can trees.
 
 Current release - regressions:
 
  - nfc: nci: fix the wrong NCI_CORE_INIT parameters
 
 Current release - new code bugs:
 
  - bpf: allow empty module BTFs
 
 Previous releases - regressions:
 
  - bpf: fix signed_{sub,add32}_overflows type handling
 
  - tcp: do not mess with cloned skbs in tcp_add_backlog()
 
  - bpf: prevent double bpf_prog_put call from bpf_tracing_prog_attach
 
  - bpf: don't leak memory in bpf getsockopt when optlen == 0
 
  - tcp: fix potential use-after-free due to double kfree()
 
  - mac80211: fix encryption issues with WEP
 
  - devlink: use right genl user_ptr when handling port param get/set
 
  - ipv6: set multicast flag on the multicast route
 
  - tcp: fix TCP_USER_TIMEOUT with zero window
 
 Previous releases - always broken:
 
  - bpf: local storage helpers should check nullness of owner ptr passed
 
  - mac80211: fix incorrect strlen of .write in debugfs
 
  - cls_flower: call nla_ok() before nla_next()
 
  - skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.11-rc5, including fixes from bpf, wireless, and
  can trees.

  Current release - regressions:

   - nfc: nci: fix the wrong NCI_CORE_INIT parameters

  Current release - new code bugs:

   - bpf: allow empty module BTFs

  Previous releases - regressions:

   - bpf: fix signed_{sub,add32}_overflows type handling

   - tcp: do not mess with cloned skbs in tcp_add_backlog()

   - bpf: prevent double bpf_prog_put call from bpf_tracing_prog_attach

   - bpf: don't leak memory in bpf getsockopt when optlen == 0

   - tcp: fix potential use-after-free due to double kfree()

   - mac80211: fix encryption issues with WEP

   - devlink: use right genl user_ptr when handling port param get/set

   - ipv6: set multicast flag on the multicast route

   - tcp: fix TCP_USER_TIMEOUT with zero window

  Previous releases - always broken:

   - bpf: local storage helpers should check nullness of owner ptr passed

   - mac80211: fix incorrect strlen of .write in debugfs

   - cls_flower: call nla_ok() before nla_next()

   - skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too"

* tag 'net-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
  net: systemport: free dev before on error path
  net: usb: cdc_ncm: don't spew notifications
  net: mscc: ocelot: Fix multicast to the CPU port
  tcp: Fix potential use-after-free due to double kfree()
  bpf: Fix signed_{sub,add32}_overflows type handling
  can: peak_usb: fix use after free bugs
  can: vxcan: vxcan_xmit: fix use after free bug
  can: dev: can_restart: fix use after free bug
  tcp: fix TCP socket rehash stats mis-accounting
  net: dsa: b53: fix an off by one in checking "vlan->vid"
  tcp: do not mess with cloned skbs in tcp_add_backlog()
  selftests: net: fib_tests: remove duplicate log test
  net: nfc: nci: fix the wrong NCI_CORE_INIT parameters
  sh_eth: Fix power down vs. is_opened flag ordering
  net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled
  netfilter: rpfilter: mask ecn bits before fib lookup
  udp: mask TOS bits in udp_v4_early_demux()
  xsk: Clear pool even for inactive queues
  bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback
  sh_eth: Make PHY access aware of Runtime PM to fix reboot crash
  ...
This commit is contained in:
Linus Torvalds 2021-01-20 11:52:21 -08:00
commit 75439bc439
57 changed files with 379 additions and 251 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.mailmap
View File

@ -55,6 +55,8 @@ Bart Van Assche <bvanassche@acm.org> <bart.vanassche@wdc.com>
Ben Gardner <bgardner@wabtec.com>
Ben M Cahill <ben.m.cahill@intel.com>
Björn Steinbrink <B.Steinbrink@gmx.de>
Björn Töpel <bjorn@kernel.org> <bjorn.topel@gmail.com>
Björn Töpel <bjorn@kernel.org> <bjorn.topel@intel.com>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon.dev@gmail.com>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon@overkiz.com>
Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@bootlin.com>

3
Documentation/networking/tls-offload.rst
View File

@ -534,3 +534,6 @@ offload. Hence, TLS TX device feature flag requires TX csum offload being set.
Disabling the latter implies clearing the former. Disabling TX checksum offload
should not affect old connections, and drivers should make sure checksum
calculation does not break for them.
Similarly, device-offloaded TLS decryption implies doing RXCSUM. If the user
does not want to enable RX csum offload, TLS RX device feature is disabled
as well.

4
MAINTAINERS
View File

@ -3334,7 +3334,7 @@ F: arch/riscv/net/
X: arch/riscv/net/bpf_jit_comp64.c
BPF JIT for RISC-V (64-bit)
M: Björn Töpel <bjorn.topel@gmail.com>
M: Björn Töpel <bjorn@kernel.org>
L: netdev@vger.kernel.org
L: bpf@vger.kernel.org
S: Maintained
@ -19416,7 +19416,7 @@ F: drivers/net/ethernet/*/*/*xdp*
K: (?:\b|_)xdp(?:\b|_)
XDP SOCKETS (AF_XDP)
M: Björn Töpel <bjorn.topel@intel.com>
M: Björn Töpel <bjorn@kernel.org>
M: Magnus Karlsson <magnus.karlsson@intel.com>
R: Jonathan Lemon <jonathan.lemon@gmail.com>
L: netdev@vger.kernel.org

4
drivers/net/can/dev.c
View File

@ -592,11 +592,11 @@ static void can_restart(struct net_device *dev)
cf->can_id |= CAN_ERR_RESTARTED;
netif_rx_ni(skb);
stats->rx_packets++;
stats->rx_bytes += cf->len;
netif_rx_ni(skb);
restart:
netdev_dbg(dev, "restarted\n");
priv->can_stats.restarts++;

8
drivers/net/can/usb/peak_usb/pcan_usb_fd.c
View File

@ -514,11 +514,11 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if,
else
memcpy(cfd->data, rm->d, cfd->len);
peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(rm->ts_low));
netdev->stats.rx_packets++;
netdev->stats.rx_bytes += cfd->len;
peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(rm->ts_low));
return 0;
}
@ -580,11 +580,11 @@ static int pcan_usb_fd_decode_status(struct pcan_usb_fd_if *usb_if,
if (!skb)
return -ENOMEM;
peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(sm->ts_low));
netdev->stats.rx_packets++;
netdev->stats.rx_bytes += cf->len;
peak_usb_netif_rx(skb, &usb_if->time_ref, le32_to_cpu(sm->ts_low));
return 0;
}

6
drivers/net/can/vxcan.c
View File

@ -39,6 +39,7 @@ static netdev_tx_t vxcan_xmit(struct sk_buff *skb, struct net_device *dev)
struct net_device *peer;
struct canfd_frame *cfd = (struct canfd_frame *)skb->data;
struct net_device_stats *peerstats, *srcstats = &dev->stats;
u8 len;
if (can_dropped_invalid_skb(dev, skb))
return NETDEV_TX_OK;
@ -61,12 +62,13 @@ static netdev_tx_t vxcan_xmit(struct sk_buff *skb, struct net_device *dev)
skb->dev = peer;
skb->ip_summed = CHECKSUM_UNNECESSARY;
len = cfd->len;
if (netif_rx_ni(skb) == NET_RX_SUCCESS) {
srcstats->tx_packets++;
srcstats->tx_bytes += cfd->len;
srcstats->tx_bytes += len;
peerstats = &peer->stats;
peerstats->rx_packets++;
peerstats->rx_bytes += cfd->len;
peerstats->rx_bytes += len;
}
out_unlock:

2
drivers/net/dsa/b53/b53_common.c
View File

@ -1404,7 +1404,7 @@ int b53_vlan_prepare(struct dsa_switch *ds, int port,
!(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED))
return -EINVAL;
if (vlan->vid_end > dev->num_vlans)
if (vlan->vid_end >= dev->num_vlans)
return -ERANGE;
b53_enable_vlan(dev, true, ds->vlan_filtering);

4
drivers/net/dsa/mv88e6xxx/global1_vtu.c
View File

@ -351,6 +351,10 @@ int mv88e6250_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
if (err)
return err;
err = mv88e6185_g1_stu_data_read(chip, entry);
if (err)
return err;
/* VTU DBNum[3:0] are located in VTU Operation 3:0
* VTU DBNum[5:4] are located in VTU Operation 9:8
*/

6
drivers/net/ethernet/broadcom/bcmsysport.c
View File

@ -2503,8 +2503,10 @@ static int bcm_sysport_probe(struct platform_device *pdev)
priv = netdev_priv(dev);
priv->clk = devm_clk_get_optional(&pdev->dev, "sw_sysport");
if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk);
if (IS_ERR(priv->clk)) {
ret = PTR_ERR(priv->clk);
goto err_free_netdev;
}
/* Allocate number of TX rings */
priv->tx_rings = devm_kcalloc(&pdev->dev, txq,

6
drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
View File

@ -469,6 +469,9 @@ int rvu_mbox_handler_cgx_mac_addr_set(struct rvu *rvu,
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr);
@ -485,6 +488,9 @@ int rvu_mbox_handler_cgx_mac_addr_get(struct rvu *rvu,
int rc = 0, i;
u64 cfg;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
rsp->hdr.rc = rc;

23
drivers/net/ethernet/mscc/ocelot.c
View File

@ -60,14 +60,27 @@ int ocelot_mact_learn(struct ocelot *ocelot, int port,
const unsigned char mac[ETH_ALEN],
unsigned int vid, enum macaccess_entry_type type)
{
u32 cmd = ANA_TABLES_MACACCESS_VALID |
ANA_TABLES_MACACCESS_DEST_IDX(port) |
ANA_TABLES_MACACCESS_ENTRYTYPE(type) |
ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN);
unsigned int mc_ports;
/* Set MAC_CPU_COPY if the CPU port is used by a multicast entry */
if (type == ENTRYTYPE_MACv4)
mc_ports = (mac[1] << 8) | mac[2];
else if (type == ENTRYTYPE_MACv6)
mc_ports = (mac[0] << 8) | mac[1];
else
mc_ports = 0;
if (mc_ports & BIT(ocelot->num_phys_ports))
cmd |= ANA_TABLES_MACACCESS_MAC_CPU_COPY;
ocelot_mact_select(ocelot, mac, vid);
/* Issue a write command */
ocelot_write(ocelot, ANA_TABLES_MACACCESS_VALID |
ANA_TABLES_MACACCESS_DEST_IDX(port) |
ANA_TABLES_MACACCESS_ENTRYTYPE(type) |
ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN),
ANA_TABLES_MACACCESS);
ocelot_write(ocelot, cmd, ANA_TABLES_MACACCESS);
return ocelot_mact_wait_for_completion(ocelot);
}

4
drivers/net/ethernet/mscc/ocelot_net.c
View File

@ -1042,10 +1042,8 @@ static int ocelot_netdevice_event(struct notifier_block *unused,
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
int ret = 0;
if (!ocelot_netdevice_dev_check(dev))
return 0;
if (event == NETDEV_PRECHANGEUPPER &&
ocelot_netdevice_dev_check(dev) &&
netif_is_lag_master(info->upper_dev)) {
struct netdev_lag_upper_info *lag_upper_info = info->upper_info;
struct netlink_ext_ack *extack;

30
drivers/net/ethernet/renesas/sh_eth.c
View File

@ -2606,10 +2606,10 @@ static int sh_eth_close(struct net_device *ndev)
/* Free all the skbuffs in the Rx queue and the DMA buffer. */
sh_eth_ring_free(ndev);
pm_runtime_put_sync(&mdp->pdev->dev);
mdp->is_opened = 0;
pm_runtime_put(&mdp->pdev->dev);
return 0;
}
@ -3034,6 +3034,28 @@ static int sh_mdio_release(struct sh_eth_private *mdp)
return 0;
}
static int sh_mdiobb_read(struct mii_bus *bus, int phy, int reg)
{
int res;
pm_runtime_get_sync(bus->parent);
res = mdiobb_read(bus, phy, reg);
pm_runtime_put(bus->parent);
return res;
}
static int sh_mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
{
int res;
pm_runtime_get_sync(bus->parent);
res = mdiobb_write(bus, phy, reg, val);
pm_runtime_put(bus->parent);
return res;
}
/* MDIO bus init function */
static int sh_mdio_init(struct sh_eth_private *mdp,
struct sh_eth_plat_data *pd)
@ -3058,6 +3080,10 @@ static int sh_mdio_init(struct sh_eth_private *mdp,
if (!mdp->mii_bus)
return -ENOMEM;
/* Wrap accessors with Runtime PM-aware ops */
mdp->mii_bus->read = sh_mdiobb_read;
mdp->mii_bus->write = sh_mdiobb_write;
/* Hook up MII support for ethtool */
mdp->mii_bus->name = "sh_mii";
mdp->mii_bus->parent = dev;

6
drivers/net/mdio/mdio-bitbang.c
View File

@ -149,7 +149,7 @@ static int mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, u32 addr)
return dev_addr;
}
static int mdiobb_read(struct mii_bus *bus, int phy, int reg)
int mdiobb_read(struct mii_bus *bus, int phy, int reg)
{
struct mdiobb_ctrl *ctrl = bus->priv;
int ret, i;
@ -180,8 +180,9 @@ static int mdiobb_read(struct mii_bus *bus, int phy, int reg)
mdiobb_get_bit(ctrl);
return ret;
}
EXPORT_SYMBOL(mdiobb_read);
static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
{
struct mdiobb_ctrl *ctrl = bus->priv;
@ -201,6 +202,7 @@ static int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val)
mdiobb_get_bit(ctrl);
return 0;
}
EXPORT_SYMBOL(mdiobb_write);
struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
{

12
drivers/net/usb/cdc_ncm.c
View File

@ -1827,6 +1827,15 @@ cdc_ncm_speed_change(struct usbnet *dev,
uint32_t rx_speed = le32_to_cpu(data->DLBitRRate);
uint32_t tx_speed = le32_to_cpu(data->ULBitRate);
/* if the speed hasn't changed, don't report it.
* RTL8156 shipped before 2021 sends notification about every 32ms.
*/
if (dev->rx_speed == rx_speed && dev->tx_speed == tx_speed)
return;
dev->rx_speed = rx_speed;
dev->tx_speed = tx_speed;
/*
* Currently the USB-NET API does not support reporting the actual
* device speed. Do print it instead.
@ -1867,7 +1876,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
* USB_CDC_NOTIFY_NETWORK_CONNECTION notification shall be
* sent by device after USB_CDC_NOTIFY_SPEED_CHANGE.
*/
usbnet_link_change(dev, !!event->wValue, 0);
if (netif_carrier_ok(dev->net) != !!event->wValue)
usbnet_link_change(dev, !!event->wValue, 0);
break;
case USB_CDC_NOTIFY_SPEED_CHANGE:

3
include/linux/mdio-bitbang.h
View File

@ -35,6 +35,9 @@ struct mdiobb_ctrl {
const struct mdiobb_ops *ops;
};
int mdiobb_read(struct mii_bus *bus, int phy, int reg);
int mdiobb_write(struct mii_bus *bus, int phy, int reg, u16 val);
/* The returned bus is not yet registered with the phy layer. */
struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl);

2
include/linux/usb/usbnet.h
View File

@ -81,6 +81,8 @@ struct usbnet {
# define EVENT_LINK_CHANGE 11
# define EVENT_SET_RX_MODE 12
# define EVENT_NO_IP_ALIGN 13
u32 rx_speed; /* in bps - NOT Mbps */
u32 tx_speed; /* in bps - NOT Mbps */
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)

5
include/net/cfg80211.h
View File

@ -1756,7 +1756,7 @@ struct cfg80211_sar_specs {
/**
* @struct cfg80211_sar_chan_ranges - sar frequency ranges
* struct cfg80211_sar_freq_ranges - sar frequency ranges
* @start_freq: start range edge frequency
* @end_freq: end range edge frequency
*/
@ -3972,6 +3972,8 @@ struct mgmt_frame_regs {
* This callback may sleep.
* @reset_tid_config: Reset TID specific configuration for the peer, for the
* given TIDs. This callback may sleep.
*
* @set_sar_specs: Update the SAR (TX power) settings.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@ -4929,6 +4931,7 @@ struct wiphy_iftype_akm_suites {
* @max_data_retry_count: maximum supported per TID retry count for
* configuration through the %NL80211_TID_CONFIG_ATTR_RETRY_SHORT and
* %NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes
* @sar_capa: SAR control capabilities
*/
struct wiphy {
/* assign these fields before you register the wiphy */

3
include/net/inet_connection_sock.h
View File

@ -76,6 +76,8 @@ struct inet_connection_sock_af_ops {
* @icsk_ext_hdr_len: Network protocol overhead (IP/IPv6 options)
* @icsk_ack: Delayed ACK control data
* @icsk_mtup; MTU probing control data
* @icsk_probes_tstamp: Probe timestamp (cleared by non-zero window ack)
* @icsk_user_timeout: TCP_USER_TIMEOUT value
*/
struct inet_connection_sock {
/* inet_sock has to be the first member! */
@ -129,6 +131,7 @@ struct inet_connection_sock {
u32 probe_timestamp;
} icsk_mtup;
u32 icsk_probes_tstamp;
u32 icsk_user_timeout;
u64 icsk_ca_priv[104 / sizeof(u64)];

1
include/net/mac80211.h
View File

@ -3880,6 +3880,7 @@ enum ieee80211_reconfig_type {
* This callback may sleep.
* @sta_set_4addr: Called to notify the driver when a station starts/stops using
* 4-address mode
* @set_sar_specs: Update the SAR (TX power) settings.
*/
struct ieee80211_ops {
void (*tx)(struct ieee80211_hw *hw,

17
include/net/sock.h
View File

@ -1921,10 +1921,13 @@ static inline void sk_set_txhash(struct sock *sk)
sk->sk_txhash = net_tx_rndhash();
}
static inline void sk_rethink_txhash(struct sock *sk)
static inline bool sk_rethink_txhash(struct sock *sk)
{
if (sk->sk_txhash)
if (sk->sk_txhash) {
sk_set_txhash(sk);
return true;
}
return false;
}
static inline struct dst_entry *
@ -1947,12 +1950,10 @@ sk_dst_get(struct sock *sk)
return dst;
}
static inline void dst_negative_advice(struct sock *sk)
static inline void __dst_negative_advice(struct sock *sk)
{
struct dst_entry *ndst, *dst = __sk_dst_get(sk);
sk_rethink_txhash(sk);
if (dst && dst->ops->negative_advice) {
ndst = dst->ops->negative_advice(dst);
@ -1964,6 +1965,12 @@ static inline void dst_negative_advice(struct sock *sk)
}
}
static inline void dst_negative_advice(struct sock *sk)
{
sk_rethink_txhash(sk);
__dst_negative_advice(sk);
}
static inline void
__sk_dst_set(struct sock *sk, struct dst_entry *dst)
{

9
kernel/bpf/bpf_inode_storage.c
View File

@ -176,14 +176,14 @@ BPF_CALL_4(bpf_inode_storage_get, struct bpf_map *, map, struct inode *, inode,
* bpf_local_storage_update expects the owner to have a
* valid storage pointer.
*/
if (!inode_storage_ptr(inode))
if (!inode || !inode_storage_ptr(inode))
return (unsigned long)NULL;
sdata = inode_storage_lookup(inode, map, true);
if (sdata)
return (unsigned long)sdata->data;
/* This helper must only called from where the inode is gurranteed
/* This helper must only called from where the inode is guaranteed
* to have a refcount and cannot be freed.
*/
if (flags & BPF_LOCAL_STORAGE_GET_F_CREATE) {
@ -200,7 +200,10 @@ BPF_CALL_4(bpf_inode_storage_get, struct bpf_map *, map, struct inode *, inode,
BPF_CALL_2(bpf_inode_storage_delete,
struct bpf_map *, map, struct inode *, inode)
{
/* This helper must only called from where the inode is gurranteed
if (!inode)
return -EINVAL;
/* This helper must only called from where the inode is guaranteed
* to have a refcount and cannot be freed.
*/
return inode_storage_delete(inode, map);

5
kernel/bpf/bpf_task_storage.c
View File

@ -218,7 +218,7 @@ BPF_CALL_4(bpf_task_storage_get, struct bpf_map *, map, struct task_struct *,
* bpf_local_storage_update expects the owner to have a
* valid storage pointer.
*/
if (!task_storage_ptr(task))
if (!task || !task_storage_ptr(task))
return (unsigned long)NULL;
sdata = task_storage_lookup(task, map, true);
@ -243,6 +243,9 @@ BPF_CALL_4(bpf_task_storage_get, struct bpf_map *, map, struct task_struct *,
BPF_CALL_2(bpf_task_storage_delete, struct bpf_map *, map, struct task_struct *,
task)
{
if (!task)
return -EINVAL;
/* This helper must only be called from places where the lifetime of the task
* is guaranteed. Either by being refcounted or by being protected
* by an RCU read-side critical section.

2
kernel/bpf/btf.c
View File

@ -4172,7 +4172,7 @@ static int btf_parse_hdr(struct btf_verifier_env *env)
return -ENOTSUPP;
}
if (btf_data_size == hdr->hdr_len) {
if (!btf->base_btf && btf_data_size == hdr->hdr_len) {
btf_verifier_log(env, "No data");
return -EINVAL;
}

5
kernel/bpf/cgroup.c
View File

@ -1391,12 +1391,13 @@ int __cgroup_bpf_run_filter_setsockopt(struct sock *sk, int *level,
if (ctx.optlen != 0) {
*optlen = ctx.optlen;
*kernel_optval = ctx.optval;
/* export and don't free sockopt buf */
return 0;
}
}
out:
if (ret)
sockopt_free_buf(&ctx);
sockopt_free_buf(&ctx);
return ret;
}

2
kernel/bpf/helpers.c
View File

@ -108,7 +108,7 @@ BPF_CALL_2(bpf_map_peek_elem, struct bpf_map *, map, void *, value)
}
const struct bpf_func_proto bpf_map_peek_elem_proto = {
.func = bpf_map_pop_elem,
.func = bpf_map_peek_elem,
.gpl_only = false,
.ret_type = RET_INTEGER,
.arg1_type = ARG_CONST_MAP_PTR,

6
kernel/bpf/syscall.c
View File

@ -2712,7 +2712,6 @@ out_unlock:
out_put_prog:
if (tgt_prog_fd && tgt_prog)
bpf_prog_put(tgt_prog);
bpf_prog_put(prog);
return err;
}
@ -2825,7 +2824,10 @@ static int bpf_raw_tracepoint_open(const union bpf_attr *attr)
tp_name = prog->aux->attach_func_name;
break;
}
return bpf_tracing_prog_attach(prog, 0, 0);
err = bpf_tracing_prog_attach(prog, 0, 0);
if (err >= 0)
return err;
goto out_put_prog;
case BPF_PROG_TYPE_RAW_TRACEPOINT:
case BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE:
if (strncpy_from_user(buf,

8
kernel/bpf/verifier.c
View File

@ -2217,6 +2217,8 @@ static bool is_spillable_regtype(enum bpf_reg_type type)
case PTR_TO_RDWR_BUF:
case PTR_TO_RDWR_BUF_OR_NULL:
case PTR_TO_PERCPU_BTF_ID:
case PTR_TO_MEM:
case PTR_TO_MEM_OR_NULL:
return true;
default:
return false;
@ -5311,7 +5313,7 @@ static bool signed_add_overflows(s64 a, s64 b)
return res < a;
}
static bool signed_add32_overflows(s64 a, s64 b)
static bool signed_add32_overflows(s32 a, s32 b)
{
/* Do the add in u32, where overflow is well-defined */
s32 res = (s32)((u32)a + (u32)b);
@ -5321,7 +5323,7 @@ static bool signed_add32_overflows(s64 a, s64 b)
return res < a;
}
static bool signed_sub_overflows(s32 a, s32 b)
static bool signed_sub_overflows(s64 a, s64 b)
{
/* Do the sub in u64, where overflow is well-defined */
s64 res = (s64)((u64)a - (u64)b);
@ -5333,7 +5335,7 @@ static bool signed_sub_overflows(s32 a, s32 b)
static bool signed_sub32_overflows(s32 a, s32 b)
{
/* Do the sub in u64, where overflow is well-defined */
/* Do the sub in u32, where overflow is well-defined */
s32 res = (s32)((u32)a - (u32)b);
if (b < 0)

3
net/bpf/test_run.c
View File

@ -272,7 +272,8 @@ int bpf_prog_test_run_raw_tp(struct bpf_prog *prog,
kattr->test.repeat)
return -EINVAL;
if (ctx_size_in < prog->aux->max_ctx_offset)
if (ctx_size_in < prog->aux->max_ctx_offset ||
ctx_size_in > MAX_BPF_FUNC_ARGS * sizeof(u64))
return -EINVAL;
if ((kattr->test.flags & BPF_F_TEST_RUN_ON_CPU) == 0 && cpu != 0)

5
net/core/dev.c
View File

@ -9672,6 +9672,11 @@ static netdev_features_t netdev_fix_features(struct net_device *dev,
}
}
if ((features & NETIF_F_HW_TLS_RX) && !(features & NETIF_F_RXCSUM)) {
netdev_dbg(dev, "Dropping TLS RX HW offload feature since no RXCSUM feature.\n");
features &= ~NETIF_F_HW_TLS_RX;
}
return features;
}

4
net/core/devlink.c
View File

@ -4146,7 +4146,7 @@ out:
static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb,
struct genl_info *info)
{
struct devlink_port *devlink_port = info->user_ptr[0];
struct devlink_port *devlink_port = info->user_ptr[1];
struct devlink_param_item *param_item;
struct sk_buff *msg;
int err;
@ -4175,7 +4175,7 @@ static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb,
static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb,
struct genl_info *info)
{
struct devlink_port *devlink_port = info->user_ptr[0];
struct devlink_port *devlink_port = info->user_ptr[1];
return __devlink_nl_cmd_param_set_doit(devlink_port->devlink,
devlink_port->index,

11
net/core/gen_estimator.c
View File

@ -80,11 +80,11 @@ static void est_timer(struct timer_list *t)
u64 rate, brate;
est_fetch_counters(est, &b);
brate = (b.bytes - est->last_bytes) << (10 - est->ewma_log - est->intvl_log);
brate -= (est->avbps >> est->ewma_log);
brate = (b.bytes - est->last_bytes) << (10 - est->intvl_log);
brate = (brate >> est->ewma_log) - (est->avbps >> est->ewma_log);
rate = (b.packets - est->last_packets) << (10 - est->ewma_log - est->intvl_log);
rate -= (est->avpps >> est->ewma_log);
rate = (b.packets - est->last_packets) << (10 - est->intvl_log);
rate = (rate >> est->ewma_log) - (est->avpps >> est->ewma_log);
write_seqcount_begin(&est->seq);
est->avbps += brate;
@ -143,6 +143,9 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
if (parm->interval < -2 || parm->interval > 3)
return -EINVAL;
if (parm->ewma_log == 0 || parm->ewma_log >= 31)
return -EINVAL;
est = kzalloc(sizeof(*est), GFP_KERNEL);
if (!est)
return -ENOBUFS;

6
net/core/skbuff.c
View File

@ -437,7 +437,11 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int len,
len += NET_SKB_PAD;
if ((len > SKB_WITH_OVERHEAD(PAGE_SIZE)) ||
/* If requested length is either too small or too big,
* we use kmalloc() for skb->head allocation.
*/
if (len <= SKB_WITH_OVERHEAD(1024) ||
len > SKB_WITH_OVERHEAD(PAGE_SIZE) ||
(gfp_mask & (__GFP_DIRECT_RECLAIM | GFP_DMA))) {
skb = __alloc_skb(len, gfp_mask, SKB_ALLOC_RX, NUMA_NO_NODE);
if (!skb)

1
net/ipv4/inet_connection_sock.c
View File

@ -851,6 +851,7 @@ struct sock *inet_csk_clone_lock(const struct sock *sk,
newicsk->icsk_retransmits = 0;
newicsk->icsk_backoff = 0;
newicsk->icsk_probes_out = 0;
newicsk->icsk_probes_tstamp = 0;
/* Deinitialize accept_queue to trap illegal accesses. */
memset(&newicsk->icsk_accept_queue, 0, sizeof(newicsk->icsk_accept_queue));

2
net/ipv4/netfilter/ipt_rpfilter.c
View File

@ -76,7 +76,7 @@ static bool rpfilter_mt(const struct sk_buff *skb, struct xt_action_param *par)
flow.daddr = iph->saddr;
flow.saddr = rpfilter_get_saddr(iph->daddr);
flow.flowi4_mark = info->flags & XT_RPFILTER_VALID_MARK ? skb->mark : 0;
flow.flowi4_tos = RT_TOS(iph->tos);
flow.flowi4_tos = iph->tos & IPTOS_RT_MASK;
flow.flowi4_scope = RT_SCOPE_UNIVERSE;
flow.flowi4_oif = l3mdev_master_ifindex_rcu(xt_in(par));

1
net/ipv4/tcp.c
View File

@ -2937,6 +2937,7 @@ int tcp_disconnect(struct sock *sk, int flags)
icsk->icsk_backoff = 0;
icsk->icsk_probes_out = 0;
icsk->icsk_probes_tstamp = 0;
icsk->icsk_rto = TCP_TIMEOUT_INIT;
icsk->icsk_rto_min = TCP_RTO_MIN;
icsk->icsk_delack_max = TCP_DELACK_MAX;

6
net/ipv4/tcp_input.c
View File

@ -3384,6 +3384,7 @@ static void tcp_ack_probe(struct sock *sk)
return;
if (!after(TCP_SKB_CB(head)->end_seq, tcp_wnd_end(tp))) {
icsk->icsk_backoff = 0;
icsk->icsk_probes_tstamp = 0;
inet_csk_clear_xmit_timer(sk, ICSK_TIME_PROBE0);
/* Socket must be waked up by subsequent tcp_data_snd_check().
* This function is not for random using!
@ -4396,10 +4397,9 @@ static void tcp_rcv_spurious_retrans(struct sock *sk, const struct sk_buff *skb)
* The receiver remembers and reflects via DSACKs. Leverage the
* DSACK state and change the txhash to re-route speculatively.
*/
if (TCP_SKB_CB(skb)->seq == tcp_sk(sk)->duplicate_sack[0].start_seq) {
sk_rethink_txhash(sk);
if (TCP_SKB_CB(skb)->seq == tcp_sk(sk)->duplicate_sack[0].start_seq &&
sk_rethink_txhash(sk))
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPDUPLICATEDATAREHASH);
}
}
static void tcp_send_dupack(struct sock *sk, const struct sk_buff *skb)

29
net/ipv4/tcp_ipv4.c
View File

@ -1595,6 +1595,8 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
tcp_move_syn(newtp, req);
ireq->ireq_opt = NULL;
} else {
newinet->inet_opt = NULL;
if (!req_unhash && found_dup_sk) {
/* This code path should only be executed in the
* syncookie case only
@ -1602,8 +1604,6 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
bh_unlock_sock(newsk);
sock_put(newsk);
newsk = NULL;
} else {
newinet->inet_opt = NULL;
}
}
return newsk;
@ -1760,6 +1760,7 @@ int tcp_v4_early_demux(struct sk_buff *skb)
bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
{
u32 limit = READ_ONCE(sk->sk_rcvbuf) + READ_ONCE(sk->sk_sndbuf);
u32 tail_gso_size, tail_gso_segs;
struct skb_shared_info *shinfo;
const struct tcphdr *th;
struct tcphdr *thtail;
@ -1767,6 +1768,7 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
unsigned int hdrlen;
bool fragstolen;
u32 gso_segs;
u32 gso_size;
int delta;
/* In case all data was pulled from skb frags (in __pskb_pull_tail()),
@ -1792,13 +1794,6 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
*/
th = (const struct tcphdr *)skb->data;
hdrlen = th->doff * 4;
shinfo = skb_shinfo(skb);
if (!shinfo->gso_size)
shinfo->gso_size = skb->len - hdrlen;
if (!shinfo->gso_segs)
shinfo->gso_segs = 1;
tail = sk->sk_backlog.tail;
if (!tail)
@ -1821,6 +1816,15 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
goto no_coalesce;
__skb_pull(skb, hdrlen);
shinfo = skb_shinfo(skb);
gso_size = shinfo->gso_size ?: skb->len;
gso_segs = shinfo->gso_segs ?: 1;
shinfo = skb_shinfo(tail);
tail_gso_size = shinfo->gso_size ?: (tail->len - hdrlen);
tail_gso_segs = shinfo->gso_segs ?: 1;
if (skb_try_coalesce(tail, skb, &fragstolen, &delta)) {
TCP_SKB_CB(tail)->end_seq = TCP_SKB_CB(skb)->end_seq;
@ -1847,11 +1851,8 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
}
/* Not as strict as GRO. We only need to carry mss max value */
skb_shinfo(tail)->gso_size = max(shinfo->gso_size,
skb_shinfo(tail)->gso_size);
gso_segs = skb_shinfo(tail)->gso_segs + shinfo->gso_segs;
skb_shinfo(tail)->gso_segs = min_t(u32, gso_segs, 0xFFFF);
shinfo->gso_size = max(gso_size, tail_gso_size);
shinfo->gso_segs = min_t(u32, gso_segs + tail_gso_segs, 0xFFFF);
sk->sk_backlog.len += delta;
__NET_INC_STATS(sock_net(sk),

1
net/ipv4/tcp_output.c
View File

@ -4084,6 +4084,7 @@ void tcp_send_probe0(struct sock *sk)
/* Cancel probe timer, if it is not required. */
icsk->icsk_probes_out = 0;
icsk->icsk_backoff = 0;
icsk->icsk_probes_tstamp = 0;
return;
}

36
net/ipv4/tcp_timer.c
View File

@ -219,14 +219,8 @@ static int tcp_write_timeout(struct sock *sk)
int retry_until;
if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
if (icsk->icsk_retransmits) {
dst_negative_advice(sk);
} else {
sk_rethink_txhash(sk);
tp->timeout_rehash++;
__NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPTIMEOUTREHASH);
}
if (icsk->icsk_retransmits)
__dst_negative_advice(sk);
retry_until = icsk->icsk_syn_retries ? : net->ipv4.sysctl_tcp_syn_retries;
expired = icsk->icsk_retransmits >= retry_until;
} else {
@ -234,12 +228,7 @@ static int tcp_write_timeout(struct sock *sk)
/* Black hole detection */
tcp_mtu_probing(icsk, sk);
dst_negative_advice(sk);
} else {
sk_rethink_txhash(sk);
tp->timeout_rehash++;
__NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPTIMEOUTREHASH);
__dst_negative_advice(sk);
}
retry_until = net->ipv4.sysctl_tcp_retries2;
@ -270,6 +259,11 @@ static int tcp_write_timeout(struct sock *sk)
return 1;
}
if (sk_rethink_txhash(sk)) {
tp->timeout_rehash++;
__NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPTIMEOUTREHASH);
}
return 0;
}
@ -349,6 +343,7 @@ static void tcp_probe_timer(struct sock *sk)
if (tp->packets_out || !skb) {
icsk->icsk_probes_out = 0;
icsk->icsk_probes_tstamp = 0;
return;
}
@ -360,13 +355,12 @@ static void tcp_probe_timer(struct sock *sk)
* corresponding system limit. We also implement similar policy when
* we use RTO to probe window in tcp_retransmit_timer().
*/
if (icsk->icsk_user_timeout) {
u32 elapsed = tcp_model_timeout(sk, icsk->icsk_probes_out,
tcp_probe0_base(sk));
if (elapsed >= icsk->icsk_user_timeout)
goto abort;
}
if (!icsk->icsk_probes_tstamp)
icsk->icsk_probes_tstamp = tcp_jiffies32;
else if (icsk->icsk_user_timeout &&
(s32)(tcp_jiffies32 - icsk->icsk_probes_tstamp) >=
msecs_to_jiffies(icsk->icsk_user_timeout))
goto abort;
max_probes = sock_net(sk)->ipv4.sysctl_tcp_retries2;
if (sock_flag(sk, SOCK_DEAD)) {

3
net/ipv4/udp.c
View File

@ -2555,7 +2555,8 @@ int udp_v4_early_demux(struct sk_buff *skb)
*/
if (!inet_sk(sk)->inet_daddr && in_dev)
return ip_mc_validate_source(skb, iph->daddr,
iph->saddr, iph->tos,
iph->saddr,
iph->tos & IPTOS_RT_MASK,
skb->dev, in_dev, &itag);
}
return 0;

3
net/ipv6/addrconf.c
View File

@ -2467,8 +2467,9 @@ static void addrconf_add_mroute(struct net_device *dev)
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
.fc_type = RTN_UNICAST,
.fc_type = RTN_MULTICAST,
.fc_nlinfo.nl_net = dev_net(dev),
.fc_protocol = RTPROT_KERNEL,
};
ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);

44
net/mac80211/debugfs.c
View File

@ -120,18 +120,17 @@ static ssize_t aqm_write(struct file *file,
{
struct ieee80211_local *local = file->private_data;
char buf[100];
size_t len;
if (count > sizeof(buf))
if (count >= sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, user_buf, count))
return -EFAULT;
buf[sizeof(buf) - 1] = '\0';
len = strlen(buf);
if (len > 0 && buf[len-1] == '\n')
buf[len-1] = 0;
if (count && buf[count - 1] == '\n')
buf[count - 1] = '\0';
else
buf[count] = '\0';
if (sscanf(buf, "fq_limit %u", &local->fq.limit) == 1)
return count;
@ -177,18 +176,17 @@ static ssize_t airtime_flags_write(struct file *file,
{
struct ieee80211_local *local = file->private_data;
char buf[16];
size_t len;
if (count > sizeof(buf))
if (count >= sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, user_buf, count))
return -EFAULT;
buf[sizeof(buf) - 1] = 0;
len = strlen(buf);
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = 0;
if (count && buf[count - 1] == '\n')
buf[count - 1] = '\0';
else
buf[count] = '\0';
if (kstrtou16(buf, 0, &local->airtime_flags))
return -EINVAL;
@ -237,20 +235,19 @@ static ssize_t aql_txq_limit_write(struct file *file,
{
struct ieee80211_local *local = file->private_data;
char buf[100];
size_t len;
u32 ac, q_limit_low, q_limit_high, q_limit_low_old, q_limit_high_old;
struct sta_info *sta;
if (count > sizeof(buf))
if (count >= sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, user_buf, count))
return -EFAULT;
buf[sizeof(buf) - 1] = 0;
len = strlen(buf);
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = 0;
if (count && buf[count - 1] == '\n')
buf[count - 1] = '\0';
else
buf[count] = '\0';
if (sscanf(buf, "%u %u %u", &ac, &q_limit_low, &q_limit_high) != 3)
return -EINVAL;
@ -306,18 +303,17 @@ static ssize_t force_tx_status_write(struct file *file,
{
struct ieee80211_local *local = file->private_data;
char buf[3];
size_t len;
if (count > sizeof(buf))
if (count >= sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, user_buf, count))
return -EFAULT;
buf[sizeof(buf) - 1] = '\0';
len = strlen(buf);
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = 0;
if (count && buf[count - 1] == '\n')
buf[count - 1] = '\0';
else
buf[count] = '\0';
if (buf[0] == '0' && buf[1] == '\0')
local->force_tx_status = 0;

2
net/mac80211/rx.c
View File

@ -4176,6 +4176,8 @@ void ieee80211_check_fast_rx(struct sta_info *sta)
rcu_read_lock();
key = rcu_dereference(sta->ptk[sta->ptk_idx]);
if (!key)
key = rcu_dereference(sdata->default_unicast_key);
if (key) {
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:

29
net/mac80211/tx.c
View File

@ -649,7 +649,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
if (!skip_hw && tx->key &&
tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
info->control.hw_key = &tx->key->conf;
} else if (!ieee80211_is_mgmt(hdr->frame_control) && tx->sta &&
} else if (ieee80211_is_data_present(hdr->frame_control) && tx->sta &&
test_sta_flag(tx->sta, WLAN_STA_USES_ENCRYPTION)) {
return TX_DROP;
}
@ -3809,7 +3809,7 @@ void __ieee80211_schedule_txq(struct ieee80211_hw *hw,
* get immediately moved to the back of the list on the next
* call to ieee80211_next_txq().
*/
if (txqi->txq.sta &&
if (txqi->txq.sta && local->airtime_flags &&
wiphy_ext_feature_isset(local->hw.wiphy,
NL80211_EXT_FEATURE_AIRTIME_FAIRNESS))
list_add(&txqi->schedule_order,
@ -4251,7 +4251,6 @@ netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
struct ethhdr *ehdr = (struct ethhdr *)skb->data;
struct ieee80211_key *key;
struct sta_info *sta;
bool offload = true;
if (unlikely(skb->len < ETH_HLEN)) {
kfree_skb(skb);
@ -4267,18 +4266,22 @@ netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
if (unlikely(IS_ERR_OR_NULL(sta) || !sta->uploaded ||
!test_sta_flag(sta, WLAN_STA_AUTHORIZED) ||
sdata->control_port_protocol == ehdr->h_proto))
offload = false;
else if ((key = rcu_dereference(sta->ptk[sta->ptk_idx])) &&
(!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) ||
key->conf.cipher == WLAN_CIPHER_SUITE_TKIP))
offload = false;
sdata->control_port_protocol == ehdr->h_proto))
goto skip_offload;
if (offload)
ieee80211_8023_xmit(sdata, dev, sta, key, skb);
else
ieee80211_subif_start_xmit(skb, dev);
key = rcu_dereference(sta->ptk[sta->ptk_idx]);
if (!key)
key = rcu_dereference(sdata->default_unicast_key);
if (key && (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) ||
key->conf.cipher == WLAN_CIPHER_SUITE_TKIP))
goto skip_offload;
ieee80211_8023_xmit(sdata, dev, sta, key, skb);
goto out;
skip_offload:
ieee80211_subif_start_xmit(skb, dev);
out:
rcu_read_unlock();

2
net/nfc/nci/core.c
View File

@ -508,7 +508,7 @@ static int nci_open_device(struct nci_dev *ndev)
};
unsigned long opt = 0;
if (!(ndev->nci_ver & NCI_VER_2_MASK))
if (ndev->nci_ver & NCI_VER_2_MASK)
opt = (unsigned long)&nci_init_v2_cmd;
rc = __nci_request(ndev, nci_init_req, opt,

22
net/sched/cls_flower.c
View File

@ -1272,6 +1272,10 @@ static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
nla_opt_msk = nla_data(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
msk_depth = nla_len(tb[TCA_FLOWER_KEY_ENC_OPTS_MASK]);
if (!nla_ok(nla_opt_msk, msk_depth)) {
NL_SET_ERR_MSG(extack, "Invalid nested attribute for masks");
return -EINVAL;
}
}
nla_for_each_attr(nla_opt_key, nla_enc_key,
@ -1307,9 +1311,6 @@ static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
return -EINVAL;
}
if (msk_depth)
nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
break;
case TCA_FLOWER_KEY_ENC_OPTS_VXLAN:
if (key->enc_opts.dst_opt_type) {
@ -1340,9 +1341,6 @@ static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
return -EINVAL;
}
if (msk_depth)
nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
break;
case TCA_FLOWER_KEY_ENC_OPTS_ERSPAN:
if (key->enc_opts.dst_opt_type) {
@ -1373,14 +1371,20 @@ static int fl_set_enc_opt(struct nlattr **tb, struct fl_flow_key *key,
NL_SET_ERR_MSG(extack, "Key and mask miss aligned");
return -EINVAL;
}
if (msk_depth)
nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
break;
default:
NL_SET_ERR_MSG(extack, "Unknown tunnel option type");
return -EINVAL;
}
if (!msk_depth)
continue;
if (!nla_ok(nla_opt_msk, msk_depth)) {
NL_SET_ERR_MSG(extack, "A mask attribute is invalid");
return -EINVAL;
}
nla_opt_msk = nla_next(nla_opt_msk, &msk_depth);
}
return 0;

8
net/sched/cls_tcindex.c
View File

@ -366,9 +366,13 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
if (tb[TCA_TCINDEX_MASK])
cp->mask = nla_get_u16(tb[TCA_TCINDEX_MASK]);
if (tb[TCA_TCINDEX_SHIFT])
if (tb[TCA_TCINDEX_SHIFT]) {
cp->shift = nla_get_u32(tb[TCA_TCINDEX_SHIFT]);
if (cp->shift > 16) {
err = -EINVAL;
goto errout;
}
}
if (!cp->hash) {
/* Hash not specified, use perfect hash if the upper limit
* of the hashing index is below the threshold.

3
net/sched/sch_api.c
View File

@ -412,7 +412,8 @@ struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
{
struct qdisc_rate_table *rtab;
if (tab == NULL || r->rate == 0 || r->cell_log == 0 ||
if (tab == NULL || r->rate == 0 ||
r->cell_log == 0 || r->cell_log >= 32 ||
nla_len(tab) != TC_RTAB_SIZE) {
NL_SET_ERR_MSG(extack, "Invalid rate table parameters for searching");
return NULL;

11
net/wireless/reg.c
View File

@ -5,7 +5,7 @@
* Copyright 2008-2011 Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
* Copyright 2013-2014 Intel Mobile Communications GmbH
* Copyright 2017 Intel Deutschland GmbH
* Copyright (C) 2018 - 2019 Intel Corporation
* Copyright (C) 2018 - 2021 Intel Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@ -139,6 +139,11 @@ static const struct ieee80211_regdomain *get_cfg80211_regdom(void)
return rcu_dereference_rtnl(cfg80211_regdomain);
}
/*
* Returns the regulatory domain associated with the wiphy.
*
* Requires either RTNL or RCU protection
*/
const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy)
{
return rcu_dereference_rtnl(wiphy->regd);
@ -2571,9 +2576,13 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
if (IS_ERR(new_regd))
return;
rtnl_lock();
tmp = get_wiphy_regdom(wiphy);
rcu_assign_pointer(wiphy->regd, new_regd);
rcu_free_regdom(tmp);
rtnl_unlock();
}
EXPORT_SYMBOL(wiphy_apply_custom_regulatory);

4
net/xdp/xsk.c
View File

@ -108,9 +108,9 @@ EXPORT_SYMBOL(xsk_get_pool_from_qid);
void xsk_clear_pool_at_qid(struct net_device *dev, u16 queue_id)
{
if (queue_id < dev->real_num_rx_queues)
if (queue_id < dev->num_rx_queues)
dev->_rx[queue_id].pool = NULL;
if (queue_id < dev->real_num_tx_queues)
if (queue_id < dev->num_tx_queues)
dev->_tx[queue_id].pool = NULL;
}

5
tools/lib/bpf/btf.c
View File

@ -240,11 +240,6 @@ static int btf_parse_hdr(struct btf *btf)
}
meta_left = btf->raw_size - sizeof(*hdr);
if (!meta_left) {
pr_debug("BTF has no data\n");
return -EINVAL;
}
if (meta_left < hdr->str_off + hdr->str_len) {
pr_debug("Invalid BTF total size:%u\n", btf->raw_size);
return -EINVAL;

96
tools/testing/selftests/bpf/prog_tests/test_local_storage.c
View File

@ -34,61 +34,6 @@ struct storage {
struct bpf_spin_lock lock;
};
/* Copies an rm binary to a temp file. dest is a mkstemp template */
static int copy_rm(char *dest)
{
int fd_in, fd_out = -1, ret = 0;
struct stat stat;
char *buf = NULL;
fd_in = open("/bin/rm", O_RDONLY);
if (fd_in < 0)
return -errno;
fd_out = mkstemp(dest);
if (fd_out < 0) {
ret = -errno;
goto out;
}
ret = fstat(fd_in, &stat);
if (ret == -1) {
ret = -errno;
goto out;
}
buf = malloc(stat.st_blksize);
if (!buf) {
ret = -errno;
goto out;
}
while (ret = read(fd_in, buf, stat.st_blksize), ret > 0) {
ret = write(fd_out, buf, ret);
if (ret < 0) {
ret = -errno;
goto out;
}
}
if (ret < 0) {
ret = -errno;
goto out;
}
/* Set executable permission on the copied file */
ret = chmod(dest, 0100);
if (ret == -1)
ret = -errno;
out:
free(buf);
close(fd_in);
close(fd_out);
return ret;
}
/* Fork and exec the provided rm binary and return the exit code of the
* forked process and its pid.
*/
@ -168,9 +113,11 @@ static bool check_syscall_operations(int map_fd, int obj_fd)
void test_test_local_storage(void)
{
char tmp_exec_path[PATH_MAX] = "/tmp/copy_of_rmXXXXXX";
char tmp_dir_path[64] = "/tmp/local_storageXXXXXX";
int err, serv_sk = -1, task_fd = -1, rm_fd = -1;
struct local_storage *skel = NULL;
char tmp_exec_path[64];
char cmd[256];
skel = local_storage__open_and_load();
if (CHECK(!skel, "skel_load", "lsm skeleton failed\n"))
@ -189,18 +136,24 @@ void test_test_local_storage(void)
task_fd))
goto close_prog;
err = copy_rm(tmp_exec_path);
if (CHECK(err < 0, "copy_rm", "err %d errno %d\n", err, errno))
if (CHECK(!mkdtemp(tmp_dir_path), "mkdtemp",
"unable to create tmpdir: %d\n", errno))
goto close_prog;
snprintf(tmp_exec_path, sizeof(tmp_exec_path), "%s/copy_of_rm",
tmp_dir_path);
snprintf(cmd, sizeof(cmd), "cp /bin/rm %s", tmp_exec_path);
if (CHECK_FAIL(system(cmd)))
goto close_prog_rmdir;
rm_fd = open(tmp_exec_path, O_RDONLY);
if (CHECK(rm_fd < 0, "open", "failed to open %s err:%d, errno:%d",
tmp_exec_path, rm_fd, errno))
goto close_prog;
goto close_prog_rmdir;
if (!check_syscall_operations(bpf_map__fd(skel->maps.inode_storage_map),
rm_fd))
goto close_prog;
goto close_prog_rmdir;
/* Sets skel->bss->monitored_pid to the pid of the forked child
* forks a child process that executes tmp_exec_path and tries to
@ -209,33 +162,36 @@ void test_test_local_storage(void)
*/
err = run_self_unlink(&skel->bss->monitored_pid, tmp_exec_path);
if (CHECK(err != EPERM, "run_self_unlink", "err %d want EPERM\n", err))
goto close_prog_unlink;
goto close_prog_rmdir;
/* Set the process being monitored to be the current process */
skel->bss->monitored_pid = getpid();
/* Remove the temporary created executable */
err = unlink(tmp_exec_path);
if (CHECK(err != 0, "unlink", "unable to unlink %s: %d", tmp_exec_path,
errno))
goto close_prog_unlink;
/* Move copy_of_rm to a new location so that it triggers the
* inode_rename LSM hook with a new_dentry that has a NULL inode ptr.
*/
snprintf(cmd, sizeof(cmd), "mv %s/copy_of_rm %s/check_null_ptr",
tmp_dir_path, tmp_dir_path);
if (CHECK_FAIL(system(cmd)))
goto close_prog_rmdir;
CHECK(skel->data->inode_storage_result != 0, "inode_storage_result",
"inode_local_storage not set\n");
serv_sk = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
if (CHECK(serv_sk < 0, "start_server", "failed to start server\n"))
goto close_prog;
goto close_prog_rmdir;
CHECK(skel->data->sk_storage_result != 0, "sk_storage_result",
"sk_local_storage not set\n");
if (!check_syscall_operations(bpf_map__fd(skel->maps.sk_storage_map),
serv_sk))
goto close_prog;
goto close_prog_rmdir;
close_prog_unlink:
unlink(tmp_exec_path);
close_prog_rmdir:
snprintf(cmd, sizeof(cmd), "rm -rf %s", tmp_dir_path);
system(cmd);
close_prog:
close(serv_sk);
close(rm_fd);

62
tools/testing/selftests/bpf/progs/local_storage.c
View File

@ -50,7 +50,6 @@ int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
__u32 pid = bpf_get_current_pid_tgid() >> 32;
struct local_storage *storage;
bool is_self_unlink;
int err;
if (pid != monitored_pid)
return 0;
@ -66,8 +65,27 @@ int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
return -EPERM;
}
storage = bpf_inode_storage_get(&inode_storage_map, victim->d_inode, 0,
BPF_LOCAL_STORAGE_GET_F_CREATE);
return 0;
}
SEC("lsm/inode_rename")
int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags)
{
__u32 pid = bpf_get_current_pid_tgid() >> 32;
struct local_storage *storage;
int err;
/* new_dentry->d_inode can be NULL when the inode is renamed to a file
* that did not exist before. The helper should be able to handle this
* NULL pointer.
*/
bpf_inode_storage_get(&inode_storage_map, new_dentry->d_inode, 0,
BPF_LOCAL_STORAGE_GET_F_CREATE);
storage = bpf_inode_storage_get(&inode_storage_map, old_dentry->d_inode,
0, 0);
if (!storage)
return 0;
@ -76,7 +94,7 @@ int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
inode_storage_result = -1;
bpf_spin_unlock(&storage->lock);
err = bpf_inode_storage_delete(&inode_storage_map, victim->d_inode);
err = bpf_inode_storage_delete(&inode_storage_map, old_dentry->d_inode);
if (!err)
inode_storage_result = err;
@ -133,37 +151,18 @@ int BPF_PROG(socket_post_create, struct socket *sock, int family, int type,
return 0;
}
SEC("lsm/file_open")
int BPF_PROG(file_open, struct file *file)
{
__u32 pid = bpf_get_current_pid_tgid() >> 32;
struct local_storage *storage;
if (pid != monitored_pid)
return 0;
if (!file->f_inode)
return 0;
storage = bpf_inode_storage_get(&inode_storage_map, file->f_inode, 0,
BPF_LOCAL_STORAGE_GET_F_CREATE);
if (!storage)
return 0;
bpf_spin_lock(&storage->lock);
storage->value = DUMMY_STORAGE_VALUE;
bpf_spin_unlock(&storage->lock);
return 0;
}
/* This uses the local storage to remember the inode of the binary that a
* process was originally executing.
*/
SEC("lsm/bprm_committed_creds")
void BPF_PROG(exec, struct linux_binprm *bprm)
{
__u32 pid = bpf_get_current_pid_tgid() >> 32;
struct local_storage *storage;
if (pid != monitored_pid)
return;
storage = bpf_task_storage_get(&task_storage_map,
bpf_get_current_task_btf(), 0,
BPF_LOCAL_STORAGE_GET_F_CREATE);
@ -172,4 +171,13 @@ void BPF_PROG(exec, struct linux_binprm *bprm)
storage->exec_inode = bprm->file->f_inode;
bpf_spin_unlock(&storage->lock);
}
storage = bpf_inode_storage_get(&inode_storage_map, bprm->file->f_inode,
0, BPF_LOCAL_STORAGE_GET_F_CREATE);
if (!storage)
return;
bpf_spin_lock(&storage->lock);
storage->value = DUMMY_STORAGE_VALUE;
bpf_spin_unlock(&storage->lock);
}

12
tools/testing/selftests/bpf/test_verifier.c
View File

@ -50,7 +50,7 @@
#define MAX_INSNS BPF_MAXINSNS
#define MAX_TEST_INSNS 1000000
#define MAX_FIXUPS 8
#define MAX_NR_MAPS 20
#define MAX_NR_MAPS 21
#define MAX_TEST_RUNS 8
#define POINTER_VALUE 0xcafe4all
#define TEST_DATA_LEN 64
@ -87,6 +87,7 @@ struct bpf_test {
int fixup_sk_storage_map[MAX_FIXUPS];
int fixup_map_event_output[MAX_FIXUPS];
int fixup_map_reuseport_array[MAX_FIXUPS];
int fixup_map_ringbuf[MAX_FIXUPS];
const char *errstr;
const char *errstr_unpriv;
uint32_t insn_processed;
@ -640,6 +641,7 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
int *fixup_sk_storage_map = test->fixup_sk_storage_map;
int *fixup_map_event_output = test->fixup_map_event_output;
int *fixup_map_reuseport_array = test->fixup_map_reuseport_array;
int *fixup_map_ringbuf = test->fixup_map_ringbuf;
if (test->fill_helper) {
test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn));
@ -817,6 +819,14 @@ static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
fixup_map_reuseport_array++;
} while (*fixup_map_reuseport_array);
}
if (*fixup_map_ringbuf) {
map_fds[20] = create_map(BPF_MAP_TYPE_RINGBUF, 0,
0, 4096);
do {
prog[*fixup_map_ringbuf].imm = map_fds[20];
fixup_map_ringbuf++;
} while (*fixup_map_ringbuf);
}
}
struct libcap {

30
tools/testing/selftests/bpf/verifier/spill_fill.c
View File

@ -28,6 +28,36 @@
.result = ACCEPT,
.result_unpriv = ACCEPT,
},
{
"check valid spill/fill, ptr to mem",
.insns = {
/* reserve 8 byte ringbuf memory */
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
BPF_LD_MAP_FD(BPF_REG_1, 0),
BPF_MOV64_IMM(BPF_REG_2, 8),
BPF_MOV64_IMM(BPF_REG_3, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
/* store a pointer to the reserved memory in R6 */
BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
/* check whether the reservation was successful */
BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6),
/* spill R6(mem) into the stack */
BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8),
/* fill it back in R7 */
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_10, -8),
/* should be able to access *(R7) = 0 */
BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 0),
/* submit the reserved ringbuf memory */
BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
BPF_MOV64_IMM(BPF_REG_2, 0),
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_EXIT_INSN(),
},
.fixup_map_ringbuf = { 1 },
.result = ACCEPT,
.result_unpriv = ACCEPT,
},
{
"check corrupted spill/fill",
.insns = {

1
tools/testing/selftests/net/fib_tests.sh
View File

@ -1055,7 +1055,6 @@ ipv6_addr_metric_test()
check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
log_test $? 0 "Set metric with peer route on local side"
log_test $? 0 "User specified metric on local address"
check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
log_test $? 0 "Set metric with peer route on peer side"