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Date: Wed, 16 Feb 2022 13:50:39 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 4.19.230
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 37a679501ddc..8bd3b0153959 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -94,6 +94,7 @@ show up in /proc/sys/kernel:
- sysctl_writes_strict
- tainted
- threads-max
+- unprivileged_bpf_disabled
- unknown_nmi_panic
- watchdog
- watchdog_thresh
@@ -1041,6 +1042,26 @@ available RAM pages threads-max is reduced accordingly.
==============================================================
+unprivileged_bpf_disabled:
+
+Writing 1 to this entry will disable unprivileged calls to bpf();
+once disabled, calling bpf() without CAP_SYS_ADMIN will return
+-EPERM. Once set to 1, this can't be cleared from the running kernel
+anymore.
+
+Writing 2 to this entry will also disable unprivileged calls to bpf(),
+however, an admin can still change this setting later on, if needed, by
+writing 0 or 1 to this entry.
+
+If BPF_UNPRIV_DEFAULT_OFF is enabled in the kernel config, then this
+entry will default to 2 instead of 0.
+
+ 0 - Unprivileged calls to bpf() are enabled
+ 1 - Unprivileged calls to bpf() are disabled without recovery
+ 2 - Unprivileged calls to bpf() are disabled
+
+==============================================================
+
unknown_nmi_panic:
The value in this file affects behavior of handling NMI. When the
diff --git a/Makefile b/Makefile
index e8be2ea115da..1a19d5d8840f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 229
+SUBLEVEL = 230
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index aca27aa2d44b..8ed52ecc965f 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -79,7 +79,6 @@
MX23_PAD_LCD_RESET__GPIO_1_18
MX23_PAD_PWM3__GPIO_1_29
MX23_PAD_PWM4__GPIO_1_30
- MX23_PAD_SSP1_DETECT__SSP1_DETECT
>;
fsl,drive-strength = <MXS_DRIVE_4mA>;
fsl,voltage = <MXS_VOLTAGE_HIGH>;
diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
index 4cc9858f7ff8..ef63ea5873ed 100644
--- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
@@ -5,6 +5,8 @@
* Author: Fabio Estevam <fabio.estevam@...escale.com>
*/
+#include <dt-bindings/gpio/gpio.h>
+
/ {
aliases {
backlight = &backlight;
@@ -210,6 +212,7 @@
MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
+ MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x1b0b0
>;
};
@@ -276,7 +279,7 @@
&usdhc3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc3>;
- non-removable;
+ cd-gpios = <&gpio7 0 GPIO_ACTIVE_LOW>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index a86b89086334..2486feb5323b 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -91,14 +91,14 @@
};
uart_A: serial@...0 {
- compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ compatible = "amlogic,meson6-uart";
reg = <0x84c0 0x18>;
interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
};
uart_B: serial@...c {
- compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ compatible = "amlogic,meson6-uart";
reg = <0x84dc 0x18>;
interrupts = <GIC_SPI 75 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
@@ -136,7 +136,7 @@
};
uart_C: serial@...0 {
- compatible = "amlogic,meson6-uart", "amlogic,meson-uart";
+ compatible = "amlogic,meson6-uart";
reg = <0x8700 0x18>;
interrupts = <GIC_SPI 93 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
@@ -219,7 +219,7 @@
};
uart_AO: serial@4c0 {
- compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart", "amlogic,meson-uart";
+ compatible = "amlogic,meson6-uart", "amlogic,meson-ao-uart";
reg = <0x4c0 0x18>;
interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
status = "disabled";
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index f4d0b4986aff..a5bca3bbe95d 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -304,7 +304,7 @@ static int i8k_get_fan_nominal_speed(int fan, int speed)
}
/*
- * Set the fan speed (off, low, high). Returns the new fan status.
+ * Set the fan speed (off, low, high, ...).
*/
static int i8k_set_fan(int fan, int speed)
{
@@ -316,7 +316,7 @@ static int i8k_set_fan(int fan, int speed)
speed = (speed < 0) ? 0 : ((speed > i8k_fan_max) ? i8k_fan_max : speed);
regs.ebx = (fan & 0xff) | (speed << 8);
- return i8k_smm(®s) ? : i8k_get_fan_status(fan);
+ return i8k_smm(®s);
}
static int i8k_get_temp_type(int sensor)
@@ -430,7 +430,7 @@ static int
i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
{
int val = 0;
- int speed;
+ int speed, err;
unsigned char buff[16];
int __user *argp = (int __user *)arg;
@@ -491,7 +491,11 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
if (copy_from_user(&speed, argp + 1, sizeof(int)))
return -EFAULT;
- val = i8k_set_fan(val, speed);
+ err = i8k_set_fan(val, speed);
+ if (err < 0)
+ return err;
+
+ val = i8k_get_fan_status(val);
break;
default:
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 2c9110fee1cc..d6cb0f9a3488 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -472,12 +472,16 @@ static void esdhc_of_adma_workaround(struct sdhci_host *host, u32 intmask)
static int esdhc_of_enable_dma(struct sdhci_host *host)
{
+ int ret;
u32 value;
struct device *dev = mmc_dev(host->mmc);
if (of_device_is_compatible(dev->of_node, "fsl,ls1043a-esdhc") ||
- of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc"))
- dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+ of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc")) {
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+ if (ret)
+ return ret;
+ }
value = sdhci_readl(host, ESDHC_DMA_SYSCTL);
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 93dfcef8afc4..035923876c61 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1012,8 +1012,8 @@ static void ad_mux_machine(struct port *port, bool *update_slave_arr)
if (port->aggregator &&
port->aggregator->is_active &&
!__port_is_enabled(port)) {
-
__enable_port(port);
+ *update_slave_arr = true;
}
}
break;
@@ -1760,6 +1760,7 @@ static void ad_agg_selection_logic(struct aggregator *agg,
port = port->next_port_in_aggregator) {
__enable_port(port);
}
+ *update_slave_arr = true;
}
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
index 7b86240ecd5f..c4f1fc97987a 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-pci.c
@@ -418,6 +418,9 @@ static void xgbe_pci_remove(struct pci_dev *pdev)
pci_free_irq_vectors(pdata->pcidev);
+ /* Disable all interrupts in the hardware */
+ XP_IOWRITE(pdata, XP_INT_EN, 0x0);
+
xgbe_free_pdata(pdata);
}
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 7f94b445595c..befb906acb20 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1964,14 +1964,15 @@ static void ixgbevf_set_rx_buffer_len(struct ixgbevf_adapter *adapter,
if (adapter->flags & IXGBEVF_FLAGS_LEGACY_RX)
return;
- set_ring_build_skb_enabled(rx_ring);
+ if (PAGE_SIZE < 8192)
+ if (max_frame > IXGBEVF_MAX_FRAME_BUILD_SKB)
+ set_ring_uses_large_buffer(rx_ring);
- if (PAGE_SIZE < 8192) {
- if (max_frame <= IXGBEVF_MAX_FRAME_BUILD_SKB)
- return;
+ /* 82599 can't rely on RXDCTL.RLPML to restrict the size of the frame */
+ if (adapter->hw.mac.type == ixgbe_mac_82599_vf && !ring_uses_large_buffer(rx_ring))
+ return;
- set_ring_uses_large_buffer(rx_ring);
- }
+ set_ring_build_skb_enabled(rx_ring);
}
/**
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 4382deaeb570..0137cba2cb54 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -712,7 +712,7 @@ static int sun8i_dwmac_reset(struct stmmac_priv *priv)
if (err) {
dev_err(priv->device, "EMAC reset timeout\n");
- return -EFAULT;
+ return err;
}
return 0;
}
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 484f6691b9c9..418b28b4267d 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -899,16 +899,15 @@ static int m88e1118_config_aneg(struct phy_device *phydev)
{
int err;
- err = genphy_soft_reset(phydev);
+ err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
if (err < 0)
return err;
- err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
+ err = genphy_config_aneg(phydev);
if (err < 0)
return err;
- err = genphy_config_aneg(phydev);
- return 0;
+ return genphy_soft_reset(phydev);
}
static int m88e1118_config_init(struct phy_device *phydev)
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 5e988f7ec174..76e834ca54e7 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -152,9 +152,10 @@ static void __veth_xdp_flush(struct veth_rq *rq)
{
/* Write ptr_ring before reading rx_notify_masked */
smp_mb();
- if (!rq->rx_notify_masked) {
- rq->rx_notify_masked = true;
- napi_schedule(&rq->xdp_napi);
+ if (!READ_ONCE(rq->rx_notify_masked) &&
+ napi_schedule_prep(&rq->xdp_napi)) {
+ WRITE_ONCE(rq->rx_notify_masked, true);
+ __napi_schedule(&rq->xdp_napi);
}
}
@@ -623,8 +624,10 @@ static int veth_poll(struct napi_struct *napi, int budget)
/* Write rx_notify_masked before reading ptr_ring */
smp_store_mb(rq->rx_notify_masked, false);
if (unlikely(!__ptr_ring_empty(&rq->xdp_ring))) {
- rq->rx_notify_masked = true;
- napi_schedule(&rq->xdp_napi);
+ if (napi_schedule_prep(&rq->xdp_napi)) {
+ WRITE_ONCE(rq->rx_notify_masked, true);
+ __napi_schedule(&rq->xdp_napi);
+ }
}
}
diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 798a8fe98e95..247d0c23bb75 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -332,7 +332,10 @@ static int __init fbtft_driver_module_init(void) \
ret = spi_register_driver(&fbtft_driver_spi_driver); \
if (ret < 0) \
return ret; \
- return platform_driver_register(&fbtft_driver_platform_driver); \
+ ret = platform_driver_register(&fbtft_driver_platform_driver); \
+ if (ret < 0) \
+ spi_unregister_driver(&fbtft_driver_spi_driver); \
+ return ret; \
} \
\
static void __exit fbtft_driver_module_exit(void) \
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 101d62105c93..f3671ffdf149 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -451,6 +451,9 @@ static bool iscsit_tpg_check_network_portal(
break;
}
spin_unlock(&tpg->tpg_np_lock);
+
+ if (match)
+ break;
}
spin_unlock(&tiqn->tiqn_tpg_lock);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 5dc9686697cf..1b237acbaa5b 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1375,7 +1375,7 @@ n_tty_receive_char_special(struct tty_struct *tty, unsigned char c)
put_tty_queue(c, ldata);
smp_store_release(&ldata->canon_head, ldata->read_head);
kill_fasync(&tty->fasync, SIGIO, POLL_IN);
- wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
+ wake_up_interruptible_poll(&tty->read_wait, EPOLLIN | EPOLLRDNORM);
return 0;
}
}
@@ -1656,7 +1656,7 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
if (read_cnt(ldata)) {
kill_fasync(&tty->fasync, SIGIO, POLL_IN);
- wake_up_interruptible_poll(&tty->read_wait, EPOLLIN);
+ wake_up_interruptible_poll(&tty->read_wait, EPOLLIN | EPOLLRDNORM);
}
}
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 076b8a3f8e7a..78ae1f0908fd 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -691,6 +691,7 @@ int vt_ioctl(struct tty_struct *tty,
ret = -ENXIO;
else {
arg--;
+ arg = array_index_nospec(arg, MAX_NR_CONSOLES);
console_lock();
ret = vc_allocate(arg);
console_unlock();
@@ -715,9 +716,9 @@ int vt_ioctl(struct tty_struct *tty,
if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)
ret = -ENXIO;
else {
- vsa.console = array_index_nospec(vsa.console,
- MAX_NR_CONSOLES + 1);
vsa.console--;
+ vsa.console = array_index_nospec(vsa.console,
+ MAX_NR_CONSOLES);
console_lock();
ret = vc_allocate(vsa.console);
if (ret == 0) {
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 5a4d08de546f..c42c152bbc33 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -132,6 +132,7 @@ static const struct attribute_group *ulpi_dev_attr_groups[] = {
static void ulpi_dev_release(struct device *dev)
{
+ of_node_put(dev->of_node);
kfree(to_ulpi_dev(dev));
}
@@ -248,12 +249,16 @@ static int ulpi_register(struct device *dev, struct ulpi *ulpi)
return ret;
ret = ulpi_read_id(ulpi);
- if (ret)
+ if (ret) {
+ of_node_put(ulpi->dev.of_node);
return ret;
+ }
ret = device_register(&ulpi->dev);
- if (ret)
+ if (ret) {
+ put_device(&ulpi->dev);
return ret;
+ }
dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n",
ulpi->id.vendor, ulpi->id.product);
@@ -300,7 +305,6 @@ EXPORT_SYMBOL_GPL(ulpi_register_interface);
*/
void ulpi_unregister_interface(struct ulpi *ulpi)
{
- of_node_put(ulpi->dev.of_node);
device_unregister(&ulpi->dev);
}
EXPORT_SYMBOL_GPL(ulpi_unregister_interface);
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index b405c8ac8984..1e46005929e4 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -4818,7 +4818,7 @@ int dwc2_hsotg_suspend(struct dwc2_hsotg *hsotg)
hsotg->gadget.speed = USB_SPEED_UNKNOWN;
spin_unlock_irqrestore(&hsotg->lock, flags);
- for (ep = 0; ep < hsotg->num_of_eps; ep++) {
+ for (ep = 1; ep < hsotg->num_of_eps; ep++) {
if (hsotg->eps_in[ep])
dwc2_hsotg_ep_disable_lock(&hsotg->eps_in[ep]->ep);
if (hsotg->eps_out[ep])
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index d61b7aa5d8e5..e7c753fbfbb0 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1020,6 +1020,19 @@ static void __dwc3_prepare_one_trb(struct dwc3_ep *dep, struct dwc3_trb *trb,
if (usb_endpoint_xfer_bulk(dep->endpoint.desc) && dep->stream_capable)
trb->ctrl |= DWC3_TRB_CTRL_SID_SOFN(stream_id);
+ /*
+ * As per data book 4.2.3.2TRB Control Bit Rules section
+ *
+ * The controller autonomously checks the HWO field of a TRB to determine if the
+ * entire TRB is valid. Therefore, software must ensure that the rest of the TRB
+ * is valid before setting the HWO field to '1'. In most systems, this means that
+ * software must update the fourth DWORD of a TRB last.
+ *
+ * However there is a possibility of CPU re-ordering here which can cause
+ * controller to observe the HWO bit set prematurely.
+ * Add a write memory barrier to prevent CPU re-ordering.
+ */
+ wmb();
trb->ctrl |= DWC3_TRB_CTRL_HWO;
dwc3_ep_inc_enq(dep);
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 748f8fede5c2..42f267ae9598 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1930,6 +1930,9 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
if (w_index != 0x5 || (w_value >> 8))
break;
interface = w_value & 0xFF;
+ if (interface >= MAX_CONFIG_INTERFACES ||
+ !os_desc_cfg->interface[interface])
+ break;
buf[6] = w_index;
count = count_ext_prop(os_desc_cfg,
interface);
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 9271a7009a00..49eb4e3c760f 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1636,16 +1636,24 @@ static void ffs_data_put(struct ffs_data *ffs)
static void ffs_data_closed(struct ffs_data *ffs)
{
+ struct ffs_epfile *epfiles;
+ unsigned long flags;
+
ENTER();
if (atomic_dec_and_test(&ffs->opened)) {
if (ffs->no_disconnect) {
ffs->state = FFS_DEACTIVATED;
- if (ffs->epfiles) {
- ffs_epfiles_destroy(ffs->epfiles,
- ffs->eps_count);
- ffs->epfiles = NULL;
- }
+ spin_lock_irqsave(&ffs->eps_lock, flags);
+ epfiles = ffs->epfiles;
+ ffs->epfiles = NULL;
+ spin_unlock_irqrestore(&ffs->eps_lock,
+ flags);
+
+ if (epfiles)
+ ffs_epfiles_destroy(epfiles,
+ ffs->eps_count);
+
if (ffs->setup_state == FFS_SETUP_PENDING)
__ffs_ep0_stall(ffs);
} else {
@@ -1692,14 +1700,27 @@ static struct ffs_data *ffs_data_new(const char *dev_name)
static void ffs_data_clear(struct ffs_data *ffs)
{
+ struct ffs_epfile *epfiles;
+ unsigned long flags;
+
ENTER();
ffs_closed(ffs);
BUG_ON(ffs->gadget);
- if (ffs->epfiles) {
- ffs_epfiles_destroy(ffs->epfiles, ffs->eps_count);
+ spin_lock_irqsave(&ffs->eps_lock, flags);
+ epfiles = ffs->epfiles;
+ ffs->epfiles = NULL;
+ spin_unlock_irqrestore(&ffs->eps_lock, flags);
+
+ /*
+ * potential race possible between ffs_func_eps_disable
+ * & ffs_epfile_release therefore maintaining a local
+ * copy of epfile will save us from use-after-free.
+ */
+ if (epfiles) {
+ ffs_epfiles_destroy(epfiles, ffs->eps_count);
ffs->epfiles = NULL;
}
@@ -1847,12 +1868,15 @@ static void ffs_epfiles_destroy(struct ffs_epfile *epfiles, unsigned count)
static void ffs_func_eps_disable(struct ffs_function *func)
{
- struct ffs_ep *ep = func->eps;
- struct ffs_epfile *epfile = func->ffs->epfiles;
- unsigned count = func->ffs->eps_count;
+ struct ffs_ep *ep;
+ struct ffs_epfile *epfile;
+ unsigned short count;
unsigned long flags;
spin_lock_irqsave(&func->ffs->eps_lock, flags);
+ count = func->ffs->eps_count;
+ epfile = func->ffs->epfiles;
+ ep = func->eps;
while (count--) {
/* pending requests get nuked */
if (likely(ep->ep))
@@ -1870,14 +1894,18 @@ static void ffs_func_eps_disable(struct ffs_function *func)
static int ffs_func_eps_enable(struct ffs_function *func)
{
- struct ffs_data *ffs = func->ffs;
- struct ffs_ep *ep = func->eps;
- struct ffs_epfile *epfile = ffs->epfiles;
- unsigned count = ffs->eps_count;
+ struct ffs_data *ffs;
+ struct ffs_ep *ep;
+ struct ffs_epfile *epfile;
+ unsigned short count;
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&func->ffs->eps_lock, flags);
+ ffs = func->ffs;
+ ep = func->eps;
+ epfile = ffs->epfiles;
+ count = ffs->eps_count;
while(count--) {
ep->ep->driver_data = ep;
diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index 04c142c13075..ab827c1badc5 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -637,14 +637,17 @@ static int rndis_set_response(struct rndis_params *params,
rndis_set_cmplt_type *resp;
rndis_resp_t *r;
+ BufLength = le32_to_cpu(buf->InformationBufferLength);
+ BufOffset = le32_to_cpu(buf->InformationBufferOffset);
+ if ((BufLength > RNDIS_MAX_TOTAL_SIZE) ||
+ (BufOffset + 8 >= RNDIS_MAX_TOTAL_SIZE))
+ return -EINVAL;
+
r = rndis_add_response(params, sizeof(rndis_set_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_set_cmplt_type *)r->buf;
- BufLength = le32_to_cpu(buf->InformationBufferLength);
- BufOffset = le32_to_cpu(buf->InformationBufferOffset);
-
#ifdef VERBOSE_DEBUG
pr_debug("%s: Length: %d\n", __func__, BufLength);
pr_debug("%s: Offset: %d\n", __func__, BufOffset);
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index c87cb25e70ec..c56e4ce2d651 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -84,6 +84,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x1a86, 0x5523) },
{ USB_DEVICE(0x1a86, 0x7522) },
{ USB_DEVICE(0x1a86, 0x7523) },
+ { USB_DEVICE(0x2184, 0x0057) },
{ USB_DEVICE(0x4348, 0x5523) },
{ USB_DEVICE(0x9986, 0x7523) },
{ },
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index cf1083639103..452c508397b7 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -52,6 +52,7 @@ static int cp210x_port_remove(struct usb_serial_port *);
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x0404, 0x034C) }, /* NCR Retail IO Box */
{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
@@ -69,6 +70,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
{ USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */
+ { USB_DEVICE(0x106F, 0x0003) }, /* CPI / Money Controls Bulk Coin Recycler */
{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 784d281eb847..d966836e7df8 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -959,6 +959,7 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_023_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_034_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_101_PID) },
+ { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_159_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_1_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_2_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_3_PID) },
@@ -967,12 +968,14 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_6_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_7_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_8_PID) },
+ { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_235_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_257_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_1_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_2_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_3_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_4_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_313_PID) },
+ { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_320_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_324_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_1_PID) },
{ USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_2_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 755858ca20ba..d1a9564697a4 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1506,6 +1506,9 @@
#define BRAINBOXES_VX_023_PID 0x1003 /* VX-023 ExpressCard 1 Port RS422/485 */
#define BRAINBOXES_VX_034_PID 0x1004 /* VX-034 ExpressCard 2 Port RS422/485 */
#define BRAINBOXES_US_101_PID 0x1011 /* US-101 1xRS232 */
+#define BRAINBOXES_US_159_PID 0x1021 /* US-159 1xRS232 */
+#define BRAINBOXES_US_235_PID 0x1017 /* US-235 1xRS232 */
+#define BRAINBOXES_US_320_PID 0x1019 /* US-320 1xRS422/485 */
#define BRAINBOXES_US_324_PID 0x1013 /* US-324 1xRS422/485 1Mbaud */
#define BRAINBOXES_US_606_1_PID 0x2001 /* US-606 6 Port RS232 Serial Port 1 and 2 */
#define BRAINBOXES_US_606_2_PID 0x2002 /* US-606 6 Port RS232 Serial Port 3 and 4 */
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 6166ef71c184..151d6601f1c1 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1649,6 +1649,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = RSVD(2) },
{ USB_DEVICE_INTERFACE_CLASS(ZTE_VENDOR_ID, 0x1476, 0xff) }, /* GosunCn ZTE WeLink ME3630 (ECM/NCM mode) */
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1481, 0xff, 0x00, 0x00) }, /* ZTE MF871A */
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1485, 0xff, 0xff, 0xff), /* ZTE MF286D */
+ .driver_info = RSVD(5) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 8f34daf85f70..5d5227ce4d91 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -168,7 +168,7 @@ struct cb_devicenotifyitem {
};
struct cb_devicenotifyargs {
- int ndevs;
+ uint32_t ndevs;
struct cb_devicenotifyitem *devs;
};
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index bcc51f131a49..868d66ed8bcf 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -364,7 +364,7 @@ __be32 nfs4_callback_devicenotify(void *argp, void *resp,
struct cb_process_state *cps)
{
struct cb_devicenotifyargs *args = argp;
- int i;
+ uint32_t i;
__be32 res = 0;
struct nfs_client *clp = cps->clp;
struct nfs_server *server = NULL;
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 57558a8d92e9..76aa1b456c52 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -268,11 +268,9 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
void *argp)
{
struct cb_devicenotifyargs *args = argp;
+ uint32_t tmp, n, i;
__be32 *p;
__be32 status = 0;
- u32 tmp;
- int n, i;
- args->ndevs = 0;
/* Num of device notifications */
p = read_buf(xdr, sizeof(uint32_t));
@@ -281,7 +279,7 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
goto out;
}
n = ntohl(*p++);
- if (n <= 0)
+ if (n == 0)
goto out;
if (n > ULONG_MAX / sizeof(*args->devs)) {
status = htonl(NFS4ERR_BADXDR);
@@ -339,19 +337,21 @@ __be32 decode_devicenotify_args(struct svc_rqst *rqstp,
dev->cbd_immediate = 0;
}
- args->ndevs++;
-
dprintk("%s: type %d layout 0x%x immediate %d\n",
__func__, dev->cbd_notify_type, dev->cbd_layout_type,
dev->cbd_immediate);
}
+ args->ndevs = n;
+ dprintk("%s: ndevs %d\n", __func__, args->ndevs);
+ return 0;
+err:
+ kfree(args->devs);
out:
+ args->devs = NULL;
+ args->ndevs = 0;
dprintk("%s: status %d ndevs %d\n",
__func__, ntohl(status), args->ndevs);
return status;
-err:
- kfree(args->devs);
- goto out;
}
static __be32 decode_sessionid(struct xdr_stream *xdr,
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 78b6f8bc9d76..15049efc6de9 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -180,6 +180,7 @@ struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
INIT_LIST_HEAD(&clp->cl_superblocks);
clp->cl_rpcclient = ERR_PTR(-EINVAL);
+ clp->cl_flags = cl_init->init_flags;
clp->cl_proto = cl_init->proto;
clp->cl_net = get_net(cl_init->net);
@@ -427,7 +428,6 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init)
list_add_tail(&new->cl_share_link,
&nn->nfs_client_list);
spin_unlock(&nn->nfs_client_lock);
- new->cl_flags = cl_init->init_flags;
return rpc_ops->init_client(new, cl_init);
}
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4dc9bd7ddf07..5ac7bf24c507 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -276,7 +276,8 @@ struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *,
struct nfs_fh *, struct nfs_fattr *);
int nfs4_replace_transport(struct nfs_server *server,
const struct nfs4_fs_locations *locations);
-
+size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
+ size_t salen, struct net *net);
/* nfs4proc.c */
extern int nfs4_handle_exception(struct nfs_server *, int, struct nfs4_exception *);
extern int nfs4_async_handle_error(struct rpc_task *task,
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 43659326b519..c97ec2fa0bbc 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1273,8 +1273,11 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname,
}
nfs_put_client(clp);
- if (server->nfs_client->cl_hostname == NULL)
+ if (server->nfs_client->cl_hostname == NULL) {
server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
+ if (server->nfs_client->cl_hostname == NULL)
+ return -ENOMEM;
+ }
nfs_server_insert_lists(server);
return nfs_probe_destination(server);
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 24f06dcc2b08..936c412be28e 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -121,8 +121,8 @@ static int nfs4_validate_fspath(struct dentry *dentry,
return 0;
}
-static size_t nfs_parse_server_name(char *string, size_t len,
- struct sockaddr *sa, size_t salen, struct net *net)
+size_t nfs_parse_server_name(char *string, size_t len, struct sockaddr *sa,
+ size_t salen, struct net *net)
{
ssize_t ret;
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index b3086e99420c..9c98547fcefc 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2066,6 +2066,9 @@ static int nfs4_try_migration(struct nfs_server *server, struct rpc_cred *cred)
}
result = -NFS4ERR_NXIO;
+ if (!locations->nlocations)
+ goto out;
+
if (!(locations->fattr.valid & NFS_ATTR_FATTR_V4_LOCATIONS)) {
dprintk("<-- %s: No fs_locations data, migration skipped\n",
__func__);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 0a5cae8f8aff..56e48642c43e 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -3747,8 +3747,6 @@ static int decode_attr_fs_locations(struct xdr_stream *xdr, uint32_t *bitmap, st
if (unlikely(!p))
goto out_overflow;
n = be32_to_cpup(p);
- if (n <= 0)
- goto out_eio;
for (res->nlocations = 0; res->nlocations < n; res->nlocations++) {
u32 m;
struct nfs4_fs_location *loc;
@@ -4294,10 +4292,11 @@ static int decode_attr_security_label(struct xdr_stream *xdr, uint32_t *bitmap,
} else
printk(KERN_WARNING "%s: label too long (%u)!\n",
__func__, len);
+ if (label && label->label)
+ dprintk("%s: label=%.*s, len=%d, PI=%d, LFS=%d\n",
+ __func__, label->len, (char *)label->label,
+ label->len, label->pi, label->lfs);
}
- if (label && label->label)
- dprintk("%s: label=%s, len=%d, PI=%d, LFS=%d\n", __func__,
- (char *)label->label, label->len, label->pi, label->lfs);
return status;
out_overflow:
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index c9cf46e0c040..335c95a03c01 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -200,6 +200,11 @@ nfsd3_proc_write(struct svc_rqst *rqstp)
(unsigned long long) argp->offset,
argp->stable? " stable" : "");
+ resp->status = nfserr_fbig;
+ if (argp->offset > (u64)OFFSET_MAX ||
+ argp->offset + argp->len > (u64)OFFSET_MAX)
+ return rpc_success;
+
fh_copy(&resp->fh, &argp->fh);
resp->committed = argp->stable;
nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index f35aa9f88b5e..a696a9b90786 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -997,8 +997,9 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
unsigned long cnt;
int nvecs;
- if (write->wr_offset >= OFFSET_MAX)
- return nfserr_inval;
+ if (write->wr_offset > (u64)OFFSET_MAX ||
+ write->wr_offset + write->wr_buflen > (u64)OFFSET_MAX)
+ return nfserr_fbig;
cnt = write->wr_buflen;
trace_nfsd_write_start(rqstp, &cstate->current_fh,
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 80933e4334d8..5b2ef30a8ac0 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -53,14 +53,14 @@ TRACE_EVENT(nfsd_compound_status,
DECLARE_EVENT_CLASS(nfsd_io_class,
TP_PROTO(struct svc_rqst *rqstp,
struct svc_fh *fhp,
- loff_t offset,
- unsigned long len),
+ u64 offset,
+ u32 len),
TP_ARGS(rqstp, fhp, offset, len),
TP_STRUCT__entry(
__field(u32, xid)
__field(u32, fh_hash)
- __field(loff_t, offset)
- __field(unsigned long, len)
+ __field(u64, offset)
+ __field(u32, len)
),
TP_fast_assign(
__entry->xid = be32_to_cpu(rqstp->rq_xid);
@@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(nfsd_io_class,
__entry->offset = offset;
__entry->len = len;
),
- TP_printk("xid=0x%08x fh_hash=0x%08x offset=%lld len=%lu",
+ TP_printk("xid=0x%08x fh_hash=0x%08x offset=%llu len=%u",
__entry->xid, __entry->fh_hash,
__entry->offset, __entry->len)
)
@@ -77,8 +77,8 @@ DECLARE_EVENT_CLASS(nfsd_io_class,
DEFINE_EVENT(nfsd_io_class, nfsd_##name, \
TP_PROTO(struct svc_rqst *rqstp, \
struct svc_fh *fhp, \
- loff_t offset, \
- unsigned long len), \
+ u64 offset, \
+ u32 len), \
TP_ARGS(rqstp, fhp, offset, len))
DEFINE_NFSD_IO_EVENT(read_start);
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index 14efa0ded75d..adab27ba1ecb 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -123,8 +123,20 @@ static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
sizeof(struct ip_tunnel_info) + md_size);
+#ifdef CONFIG_DST_CACHE
+ /* Unclone the dst cache if there is one */
+ if (new_md->u.tun_info.dst_cache.cache) {
+ int ret;
+
+ ret = dst_cache_init(&new_md->u.tun_info.dst_cache, GFP_ATOMIC);
+ if (ret) {
+ metadata_dst_free(new_md);
+ return ERR_PTR(ret);
+ }
+ }
+#endif
+
skb_dst_drop(skb);
- dst_hold(&new_md->dst);
skb_dst_set(skb, &new_md->dst);
return new_md;
}
diff --git a/init/Kconfig b/init/Kconfig
index b56a125b5a76..0fe4f60c974d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1474,6 +1474,16 @@ config BPF_JIT_ALWAYS_ON
Enables BPF JIT and removes BPF interpreter to avoid
speculative execution of BPF instructions by the interpreter
+config BPF_UNPRIV_DEFAULT_OFF
+ bool "Disable unprivileged BPF by default"
+ depends on BPF_SYSCALL
+ help
+ Disables unprivileged BPF by default by setting the corresponding
+ /proc/sys/kernel/unprivileged_bpf_disabled knob to 2. An admin can
+ still reenable it by setting it to 0 later on, or permanently
+ disable it by setting it to 1 (from which no other transition to
+ 0 is possible anymore).
+
config USERFAULTFD
bool "Enable userfaultfd() system call"
select ANON_INODES
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 353a8d672302..e940c1f65938 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -48,7 +48,8 @@ static DEFINE_SPINLOCK(prog_idr_lock);
static DEFINE_IDR(map_idr);
static DEFINE_SPINLOCK(map_idr_lock);
-int sysctl_unprivileged_bpf_disabled __read_mostly;
+int sysctl_unprivileged_bpf_disabled __read_mostly =
+ IS_BUILTIN(CONFIG_BPF_UNPRIV_DEFAULT_OFF) ? 2 : 0;
static const struct bpf_map_ops * const bpf_map_types[] = {
#define BPF_PROG_TYPE(_id, _ops)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index e6e11b598438..2adde229d1af 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -798,7 +798,7 @@ static DEFINE_PER_CPU(struct list_head, cgrp_cpuctx_list);
*/
static void perf_cgroup_switch(struct task_struct *task, int mode)
{
- struct perf_cpu_context *cpuctx;
+ struct perf_cpu_context *cpuctx, *tmp;
struct list_head *list;
unsigned long flags;
@@ -809,7 +809,7 @@ static void perf_cgroup_switch(struct task_struct *task, int mode)
local_irq_save(flags);
list = this_cpu_ptr(&cgrp_cpuctx_list);
- list_for_each_entry(cpuctx, list, cgrp_cpuctx_entry) {
+ list_for_each_entry_safe(cpuctx, tmp, list, cgrp_cpuctx_entry) {
WARN_ON_ONCE(cpuctx->ctx.nr_cgroups == 0);
perf_ctx_lock(cpuctx, cpuctx->task_ctx);
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index a9dd2325bdda..69b4e34e191b 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -28,6 +28,9 @@
#include <linux/syscalls.h>
#include <linux/sysctl.h>
+/* Not exposed in headers: strictly internal use only. */
+#define SECCOMP_MODE_DEAD (SECCOMP_MODE_FILTER + 1)
+
#ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
#include <asm/syscall.h>
#endif
@@ -628,6 +631,7 @@ static void __secure_computing_strict(int this_syscall)
#ifdef SECCOMP_DEBUG
dump_stack();
#endif
+ current->seccomp.mode = SECCOMP_MODE_DEAD;
seccomp_log(this_syscall, SIGKILL, SECCOMP_RET_KILL_THREAD, true);
do_exit(SIGKILL);
}
@@ -742,6 +746,7 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
case SECCOMP_RET_KILL_THREAD:
case SECCOMP_RET_KILL_PROCESS:
default:
+ current->seccomp.mode = SECCOMP_MODE_DEAD;
seccomp_log(this_syscall, SIGSYS, action, true);
/* Dump core only if this is the last remaining thread. */
if (action == SECCOMP_RET_KILL_PROCESS ||
@@ -794,6 +799,11 @@ int __secure_computing(const struct seccomp_data *sd)
return 0;
case SECCOMP_MODE_FILTER:
return __seccomp_filter(this_syscall, sd, false);
+ /* Surviving SECCOMP_RET_KILL_* must be proactively impossible. */
+ case SECCOMP_MODE_DEAD:
+ WARN_ON_ONCE(1);
+ do_exit(SIGKILL);
+ return -1;
default:
BUG();
}
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index a5d75bc38eea..03af4a493aff 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -250,6 +250,28 @@ static int sysrq_sysctl_handler(struct ctl_table *table, int write,
#endif
+#ifdef CONFIG_BPF_SYSCALL
+static int bpf_unpriv_handler(struct ctl_table *table, int write,
+ void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int ret, unpriv_enable = *(int *)table->data;
+ bool locked_state = unpriv_enable == 1;
+ struct ctl_table tmp = *table;
+
+ if (write && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ tmp.data = &unpriv_enable;
+ ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
+ if (write && !ret) {
+ if (locked_state && unpriv_enable != 1)
+ return -EPERM;
+ *(int *)table->data = unpriv_enable;
+ }
+ return ret;
+}
+#endif
+
static struct ctl_table kern_table[];
static struct ctl_table vm_table[];
static struct ctl_table fs_table[];
@@ -1220,10 +1242,9 @@ static struct ctl_table kern_table[] = {
.data = &sysctl_unprivileged_bpf_disabled,
.maxlen = sizeof(sysctl_unprivileged_bpf_disabled),
.mode = 0644,
- /* only handle a transition from default "0" to "1" */
- .proc_handler = proc_dointvec_minmax,
- .extra1 = &one,
- .extra2 = &one,
+ .proc_handler = bpf_unpriv_handler,
+ .extra1 = &zero,
+ .extra2 = &two,
},
#endif
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 7c6b1024dd4b..9475e0443ff9 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -39,7 +39,6 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats);
const struct nf_br_ops *nf_ops;
const unsigned char *dest;
- struct ethhdr *eth;
u16 vid = 0;
memset(skb->cb, 0, sizeof(struct br_input_skb_cb));
@@ -60,15 +59,14 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
BR_INPUT_SKB_CB(skb)->brdev = dev;
skb_reset_mac_header(skb);
- eth = eth_hdr(skb);
skb_pull(skb, ETH_HLEN);
if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid))
goto out;
if (IS_ENABLED(CONFIG_INET) &&
- (eth->h_proto == htons(ETH_P_ARP) ||
- eth->h_proto == htons(ETH_P_RARP)) &&
+ (eth_hdr(skb)->h_proto == htons(ETH_P_ARP) ||
+ eth_hdr(skb)->h_proto == htons(ETH_P_RARP)) &&
br->neigh_suppress_enabled) {
br_do_proxy_suppress_arp(skb, br, vid, NULL);
} else if (IS_ENABLED(CONFIG_IPV6) &&
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index d235478d9ca3..2085af224a41 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -265,7 +265,9 @@ static int __net_init ipmr_rules_init(struct net *net)
return 0;
err2:
+ rtnl_lock();
ipmr_free_table(mrt);
+ rtnl_unlock();
err1:
fib_rules_unregister(ops);
return err;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 35e7092eceb3..e9eb917342b8 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -245,7 +245,9 @@ static int __net_init ip6mr_rules_init(struct net *net)
return 0;
err2:
+ rtnl_lock();
ip6mr_free_table(mrt);
+ rtnl_unlock();
err1:
fib_rules_unregister(ops);
return err;
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index af035431bec6..424e70907b96 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1131,7 +1131,7 @@ static struct Qdisc *qdisc_create(struct net_device *dev,
err = -ENOENT;
if (!ops) {
- NL_SET_ERR_MSG(extack, "Specified qdisc not found");
+ NL_SET_ERR_MSG(extack, "Specified qdisc kind is unknown");
goto err_out;
}
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 836e629e8f4a..661bc2551a0a 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -290,7 +290,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i,
pr_warn_ratelimited("Failed to remove binding %u,%u from %x\n",
type, lower, node);
} else {
- pr_warn("Unrecognized name table message received\n");
+ pr_warn_ratelimited("Unknown name table message received\n");
}
return false;
}
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 604cdac63d84..38bd565b9da9 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -497,12 +497,12 @@ int __init ima_fs_init(void)
return 0;
out:
+ securityfs_remove(ima_policy);
securityfs_remove(violations);
securityfs_remove(runtime_measurements_count);
securityfs_remove(ascii_runtime_measurements);
securityfs_remove(binary_runtime_measurements);
securityfs_remove(ima_symlink);
securityfs_remove(ima_dir);
- securityfs_remove(ima_policy);
return -1;
}
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 30db39b23804..4dfdccce497b 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -31,6 +31,7 @@ static struct ima_template_desc builtin_templates[] = {
static LIST_HEAD(defined_templates);
static DEFINE_SPINLOCK(template_list);
+static int template_setup_done;
static struct ima_template_field supported_fields[] = {
{.field_id = "d", .field_init = ima_eventdigest_init,
@@ -57,10 +58,11 @@ static int __init ima_template_setup(char *str)
struct ima_template_desc *template_desc;
int template_len = strlen(str);
- if (ima_template)
+ if (template_setup_done)
return 1;
- ima_init_template_list();
+ if (!ima_template)
+ ima_init_template_list();
/*
* Verify that a template with the supplied name exists.
@@ -84,6 +86,7 @@ static int __init ima_template_setup(char *str)
}
ima_template = template_desc;
+ template_setup_done = 1;
return 1;
}
__setup("ima_template=", ima_template_setup);
@@ -92,7 +95,7 @@ static int __init ima_template_fmt_setup(char *str)
{
int num_templates = ARRAY_SIZE(builtin_templates);
- if (ima_template)
+ if (template_setup_done)
return 1;
if (template_desc_init_fields(str, NULL, NULL) < 0) {
@@ -103,6 +106,7 @@ static int __init ima_template_fmt_setup(char *str)
builtin_templates[num_templates - 1].fmt = str;
ima_template = builtin_templates + num_templates - 1;
+ template_setup_done = 1;
return 1;
}
diff --git a/security/integrity/integrity_audit.c b/security/integrity/integrity_audit.c
index 82c98f7d217e..d03fbdfc972e 100644
--- a/security/integrity/integrity_audit.c
+++ b/security/integrity/integrity_audit.c
@@ -39,6 +39,8 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode,
return;
ab = audit_log_start(audit_context(), GFP_KERNEL, audit_msgno);
+ if (!ab)
+ return;
audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u",
task_pid_nr(current),
from_kuid(&init_user_ns, current_cred()->uid),
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 633fa5425fd9..4aeb3e139901 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2919,6 +2919,9 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev,
for (j = 0; j < num_matched_functions; j++) {
sym = syms[j];
+ if (sym->type != STT_FUNC)
+ continue;
+
tev = (*tevs) + ret;
tp = &tev->point;
if (ret == num_matched_functions) {
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