I'm announcing the release of the 5.4.277 kernel.
All users of the 5.4 kernel series must upgrade.
The updated 5.4.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.4.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
thanks,
greg k-h
------------
Documentation/sphinx/kernel_include.py | 1
Makefile | 2
arch/arm64/boot/dts/qcom/msm8998.dtsi | 8 +-
drivers/firmware/arm_scmi/reset.c | 6 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 22 ++++-
drivers/net/ethernet/broadcom/genet/bcmgenet.h | 2
drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c | 12 ++-
drivers/net/ethernet/broadcom/genet/bcmmii.c | 43 ++---------
drivers/pinctrl/core.c | 14 ++-
drivers/tty/serial/kgdboc.c | 30 +++++++
drivers/usb/typec/ucsi/displayport.c | 4 -
fs/btrfs/volumes.c | 1
fs/cifs/smb2ops.c | 4 -
fs/cifs/smb2pdu.c | 81 +++++++++++++--------
fs/cifs/smb2proto.h | 10 +-
fs/ext4/extents.c | 10 +-
tools/testing/selftests/vm/map_hugetlb.c | 7 -
18 files changed, 161 insertions(+), 99 deletions(-)
Akira Yokosawa (1):
docs: kernel_include.py: Cope with docutils 0.21
Baokun Li (1):
ext4: fix bug_on in __es_tree_search
Cristian Marussi (1):
firmware: arm_scmi: Harden accesses to the reset domains
Daniel Thompson (1):
serial: kgdboc: Fix NMI-safety problems from keyboard reset code
Dominique Martinet (1):
btrfs: add missing mutex_unlock in btrfs_relocate_sys_chunks()
Doug Berger (5):
Revert "net: bcmgenet: use RGMII loopback for MAC reset"
net: bcmgenet: keep MAC in reset until PHY is up
net: bcmgenet: synchronize EXT_RGMII_OOB_CTRL access
net: bcmgenet: synchronize use of bcmgenet_set_rx_mode()
net: bcmgenet: synchronize UMAC_CMD access
Greg Kroah-Hartman (1):
Linux 5.4.277
Harshit Mogalapalli (1):
Revert "selftests: mm: fix map_hugetlb failure on 64K page size systems"
Heikki Krogerus (1):
usb: typec: ucsi: displayport: Fix potential deadlock
Paulo Alcantara (1):
smb: client: fix potential OOBs in smb2_parse_contexts()
Rob Herring (1):
arm64: dts: qcom: Fix 'interrupt-map' parent address cells
Sergey Shtylyov (1):
pinctrl: core: handle radix_tree_insert() errors in pinctrl_register_one_pin()
Srinivasan Shanmugam (1):
drm/amdgpu: Fix possible NULL dereference in amdgpu_ras_query_error_status_helper()
diff --git a/Documentation/sphinx/kernel_include.py b/Documentation/sphinx/kernel_include.py
index f523aa68a36b..cf601bd058ab 100755
--- a/Documentation/sphinx/kernel_include.py
+++ b/Documentation/sphinx/kernel_include.py
@@ -94,7 +94,6 @@ class KernelInclude(Include):
# HINT: this is the only line I had to change / commented out:
#path = utils.relative_path(None, path)
- path = nodes.reprunicode(path)
encoding = self.options.get(
'encoding', self.state.document.settings.input_encoding)
e_handler=self.state.document.settings.input_encoding_error_handler
diff --git a/Makefile b/Makefile
index b45c9b7543e5..99ea90429465 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 4
-SUBLEVEL = 276
+SUBLEVEL = 277
EXTRAVERSION =
NAME = Kleptomaniac Octopus
diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
index 9cb7163c5714..5c653ab90746 100644
--- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -872,10 +872,10 @@
interrupts = <GIC_SPI 405 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "msi";
interrupt-map-mask = <0 0 0 0x7>;
- interrupt-map = <0 0 0 1 &intc 0 135 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 2 &intc 0 136 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 3 &intc 0 138 IRQ_TYPE_LEVEL_HIGH>,
- <0 0 0 4 &intc 0 139 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-map = <0 0 0 1 &intc 0 0 135 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 2 &intc 0 0 136 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 3 &intc 0 0 138 IRQ_TYPE_LEVEL_HIGH>,
+ <0 0 0 4 &intc 0 0 139 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&gcc GCC_PCIE_0_PIPE_CLK>,
<&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
diff --git a/drivers/firmware/arm_scmi/reset.c b/drivers/firmware/arm_scmi/reset.c
index 6d223f345b6c..b45d3e9cee12 100644
--- a/drivers/firmware/arm_scmi/reset.c
+++ b/drivers/firmware/arm_scmi/reset.c
@@ -135,8 +135,12 @@ static int scmi_domain_reset(const struct scmi_handle *handle, u32 domain,
struct scmi_xfer *t;
struct scmi_msg_reset_domain_reset *dom;
struct scmi_reset_info *pi = handle->reset_priv;
- struct reset_dom_info *rdom = pi->dom_info + domain;
+ struct reset_dom_info *rdom;
+ if (domain >= pi->num_domains)
+ return -EINVAL;
+
+ rdom = pi->dom_info + domain;
if (rdom->async_reset)
flags |= ASYNCHRONOUS_RESET;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 9c5cbc47edf1..b6fc191c353a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -594,6 +594,9 @@ int amdgpu_ras_error_query(struct amdgpu_device *adev,
if (!obj)
return -EINVAL;
+ if (!info || info->head.block == AMDGPU_RAS_BLOCK_COUNT)
+ return -EINVAL;
+
switch (info->head.block) {
case AMDGPU_RAS_BLOCK__UMC:
if (adev->umc.funcs->query_ras_error_count)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 469cfc74617a..fd5f9a3a8352 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1990,12 +1990,18 @@ static void umac_enable_set(struct bcmgenet_priv *priv, u32 mask, bool enable)
{
u32 reg;
+ spin_lock_bh(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
+ if (reg & CMD_SW_RESET) {
+ spin_unlock_bh(&priv->reg_lock);
+ return;
+ }
if (enable)
reg |= mask;
else
reg &= ~mask;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock_bh(&priv->reg_lock);
/* UniMAC stops on a packet boundary, wait for a full-size packet
* to be processed
@@ -2010,11 +2016,11 @@ static void reset_umac(struct bcmgenet_priv *priv)
bcmgenet_rbuf_ctrl_set(priv, 0);
udelay(10);
- /* disable MAC while updating its registers */
- bcmgenet_umac_writel(priv, 0, UMAC_CMD);
-
- /* issue soft reset with (rg)mii loopback to ensure a stable rxclk */
- bcmgenet_umac_writel(priv, CMD_SW_RESET | CMD_LCL_LOOP_EN, UMAC_CMD);
+ /* issue soft reset and disable MAC while updating its registers */
+ spin_lock_bh(&priv->reg_lock);
+ bcmgenet_umac_writel(priv, CMD_SW_RESET, UMAC_CMD);
+ udelay(2);
+ spin_unlock_bh(&priv->reg_lock);
}
static void bcmgenet_intr_disable(struct bcmgenet_priv *priv)
@@ -2882,7 +2888,9 @@ static void bcmgenet_netif_start(struct net_device *dev)
struct bcmgenet_priv *priv = netdev_priv(dev);
/* Start the network engine */
+ netif_addr_lock_bh(dev);
bcmgenet_set_rx_mode(dev);
+ netif_addr_unlock_bh(dev);
bcmgenet_enable_rx_napi(priv);
umac_enable_set(priv, CMD_TX_EN | CMD_RX_EN, true);
@@ -3146,16 +3154,19 @@ static void bcmgenet_set_rx_mode(struct net_device *dev)
* 3. The number of filters needed exceeds the number filters
* supported by the hardware.
*/
+ spin_lock(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) ||
(nfilter > MAX_MDF_FILTER)) {
reg |= CMD_PROMISC;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock(&priv->reg_lock);
bcmgenet_umac_writel(priv, 0, UMAC_MDF_CTRL);
return;
} else {
reg &= ~CMD_PROMISC;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock(&priv->reg_lock);
}
/* update MDF filter */
@@ -3513,6 +3524,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
goto err;
}
+ spin_lock_init(&priv->reg_lock);
spin_lock_init(&priv->lock);
SET_NETDEV_DEV(dev, &pdev->dev);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index 29bf256d13f6..9efc503a9c8b 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -608,6 +608,8 @@ struct bcmgenet_rx_ring {
/* device context */
struct bcmgenet_priv {
void __iomem *base;
+ /* reg_lock: lock to serialize access to shared registers */
+ spinlock_t reg_lock;
enum bcmgenet_version version;
struct net_device *dev;
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
index a2da09da4907..973275d116b6 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
@@ -132,10 +132,16 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
return -EINVAL;
}
- /* disable RX */
+ /* Can't suspend with WoL if MAC is still in reset */
+ spin_lock_bh(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
+ if (reg & CMD_SW_RESET)
+ reg &= ~CMD_SW_RESET;
+
+ /* disable RX */
reg &= ~CMD_RX_EN;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock_bh(&priv->reg_lock);
mdelay(10);
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
@@ -159,6 +165,7 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
retries);
/* Enable CRC forward */
+ spin_lock_bh(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
priv->crc_fwd_en = 1;
reg |= CMD_CRC_FWD;
@@ -166,6 +173,7 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
/* Receiver must be enabled for WOL MP detection */
reg |= CMD_RX_EN;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock_bh(&priv->reg_lock);
return 0;
}
@@ -187,8 +195,10 @@ void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
/* Disable CRC Forward */
+ spin_lock_bh(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
reg &= ~CMD_CRC_FWD;
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock_bh(&priv->reg_lock);
priv->crc_fwd_en = 0;
}
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 026f00ccaa0c..bd532e5b9f73 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -91,12 +91,20 @@ void bcmgenet_mii_setup(struct net_device *dev)
reg |= RGMII_LINK;
bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
+ spin_lock_bh(&priv->reg_lock);
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
reg &= ~((CMD_SPEED_MASK << CMD_SPEED_SHIFT) |
CMD_HD_EN |
CMD_RX_PAUSE_IGNORE | CMD_TX_PAUSE_IGNORE);
reg |= cmd_bits;
+ if (reg & CMD_SW_RESET) {
+ reg &= ~CMD_SW_RESET;
+ bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ udelay(2);
+ reg |= CMD_TX_EN | CMD_RX_EN;
+ }
bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ spin_unlock_bh(&priv->reg_lock);
priv->eee.eee_active = phy_init_eee(phydev, 0) >= 0;
bcmgenet_eee_enable_set(dev,
@@ -187,38 +195,8 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
const char *phy_name = NULL;
u32 id_mode_dis = 0;
u32 port_ctrl;
- int bmcr = -1;
- int ret;
u32 reg;
- /* MAC clocking workaround during reset of umac state machines */
- reg = bcmgenet_umac_readl(priv, UMAC_CMD);
- if (reg & CMD_SW_RESET) {
- /* An MII PHY must be isolated to prevent TXC contention */
- if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
- ret = phy_read(phydev, MII_BMCR);
- if (ret >= 0) {
- bmcr = ret;
- ret = phy_write(phydev, MII_BMCR,
- bmcr | BMCR_ISOLATE);
- }
- if (ret) {
- netdev_err(dev, "failed to isolate PHY\n");
- return ret;
- }
- }
- /* Switch MAC clocking to RGMII generated clock */
- bcmgenet_sys_writel(priv, PORT_MODE_EXT_GPHY, SYS_PORT_CTRL);
- /* Ensure 5 clks with Rx disabled
- * followed by 5 clks with Reset asserted
- */
- udelay(4);
- reg &= ~(CMD_SW_RESET | CMD_LCL_LOOP_EN);
- bcmgenet_umac_writel(priv, reg, UMAC_CMD);
- /* Ensure 5 more clocks before Rx is enabled */
- udelay(2);
- }
-
priv->ext_phy = !priv->internal_phy &&
(priv->phy_interface != PHY_INTERFACE_MODE_MOCA);
@@ -250,9 +228,6 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
phy_set_max_speed(phydev, SPEED_100);
bcmgenet_sys_writel(priv,
PORT_MODE_EXT_EPHY, SYS_PORT_CTRL);
- /* Restore the MII PHY after isolation */
- if (bmcr >= 0)
- phy_write(phydev, MII_BMCR, bmcr);
break;
case PHY_INTERFACE_MODE_REVMII:
@@ -296,6 +271,7 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
* block for the interface to work
*/
if (priv->ext_phy) {
+ mutex_lock(&phydev->lock);
reg = bcmgenet_ext_readl(priv, EXT_RGMII_OOB_CTRL);
reg |= id_mode_dis;
if (GENET_IS_V1(priv) || GENET_IS_V2(priv) || GENET_IS_V3(priv))
@@ -303,6 +279,7 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
else
reg |= RGMII_MODE_EN;
bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
+ mutex_unlock(&phydev->lock);
}
if (init)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 3947b7064bea..44802e501794 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -203,6 +203,7 @@ static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev,
const struct pinctrl_pin_desc *pin)
{
struct pin_desc *pindesc;
+ int error;
pindesc = pin_desc_get(pctldev, pin->number);
if (pindesc) {
@@ -224,18 +225,25 @@ static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev,
} else {
pindesc->name = kasprintf(GFP_KERNEL, "PIN%u", pin->number);
if (!pindesc->name) {
- kfree(pindesc);
- return -ENOMEM;
+ error = -ENOMEM;
+ goto failed;
}
pindesc->dynamic_name = true;
}
pindesc->drv_data = pin->drv_data;
- radix_tree_insert(&pctldev->pin_desc_tree, pin->number, pindesc);
+ error = radix_tree_insert(&pctldev->pin_desc_tree, pin->number, pindesc);
+ if (error)
+ goto failed;
+
pr_debug("registered pin %d (%s) on %s\n",
pin->number, pindesc->name, pctldev->desc->name);
return 0;
+
+failed:
+ kfree(pindesc);
+ return error;
}
static int pinctrl_register_pins(struct pinctrl_dev *pctldev,
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index 6d4792ec9e5f..2df77f894746 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -19,6 +19,7 @@
#include <linux/console.h>
#include <linux/vt_kern.h>
#include <linux/input.h>
+#include <linux/irq_work.h>
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -42,6 +43,25 @@ static int kgdb_tty_line;
static struct platform_device *kgdboc_pdev;
+/*
+ * When we leave the debug trap handler we need to reset the keyboard status
+ * (since the original keyboard state gets partially clobbered by kdb use of
+ * the keyboard).
+ *
+ * The path to deliver the reset is somewhat circuitous.
+ *
+ * To deliver the reset we register an input handler, reset the keyboard and
+ * then deregister the input handler. However, to get this done right, we do
+ * have to carefully manage the calling context because we can only register
+ * input handlers from task context.
+ *
+ * In particular we need to trigger the action from the debug trap handler with
+ * all its NMI and/or NMI-like oddities. To solve this the kgdboc trap exit code
+ * (the "post_exception" callback) uses irq_work_queue(), which is NMI-safe, to
+ * schedule a callback from a hardirq context. From there we have to defer the
+ * work again, this time using schedule_work(), to get a callback using the
+ * system workqueue, which runs in task context.
+ */
#ifdef CONFIG_KDB_KEYBOARD
static int kgdboc_reset_connect(struct input_handler *handler,
struct input_dev *dev,
@@ -93,10 +113,17 @@ static void kgdboc_restore_input_helper(struct work_struct *dummy)
static DECLARE_WORK(kgdboc_restore_input_work, kgdboc_restore_input_helper);
+static void kgdboc_queue_restore_input_helper(struct irq_work *unused)
+{
+ schedule_work(&kgdboc_restore_input_work);
+}
+
+static DEFINE_IRQ_WORK(kgdboc_restore_input_irq_work, kgdboc_queue_restore_input_helper);
+
static void kgdboc_restore_input(void)
{
if (likely(system_state == SYSTEM_RUNNING))
- schedule_work(&kgdboc_restore_input_work);
+ irq_work_queue(&kgdboc_restore_input_irq_work);
}
static int kgdboc_register_kbd(char **cptr)
@@ -127,6 +154,7 @@ static void kgdboc_unregister_kbd(void)
i--;
}
}
+ irq_work_sync(&kgdboc_restore_input_irq_work);
flush_work(&kgdboc_restore_input_work);
}
#else /* ! CONFIG_KDB_KEYBOARD */
diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c
index 166c2aabb512..f67c5a304155 100644
--- a/drivers/usb/typec/ucsi/displayport.c
+++ b/drivers/usb/typec/ucsi/displayport.c
@@ -251,8 +251,6 @@ static void ucsi_displayport_work(struct work_struct *work)
struct ucsi_dp *dp = container_of(work, struct ucsi_dp, work);
int ret;
- mutex_lock(&dp->con->lock);
-
ret = typec_altmode_vdm(dp->alt, dp->header,
dp->vdo_data, dp->vdo_size);
if (ret)
@@ -261,8 +259,6 @@ static void ucsi_displayport_work(struct work_struct *work)
dp->vdo_data = NULL;
dp->vdo_size = 0;
dp->header = 0;
-
- mutex_unlock(&dp->con->lock);
}
void ucsi_displayport_remove_partner(struct typec_altmode *alt)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index d7014b2b28d6..10cc12ad2a2b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3277,6 +3277,7 @@ static int btrfs_relocate_sys_chunks(struct btrfs_fs_info *fs_info)
* alignment and size).
*/
ret = -EUCLEAN;
+ mutex_unlock(&fs_info->delete_unused_bgs_mutex);
goto error;
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 5fea15a5f341..b2e45e168548 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -787,9 +787,11 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon,
/* BB TBD check to see if oplock level check can be removed below */
if (o_rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE) {
kref_get(&tcon->crfid.refcount);
- smb2_parse_contexts(server, o_rsp,
+ rc = smb2_parse_contexts(server, rsp_iov,
&oparms.fid->epoch,
oparms.fid->lease_key, &oplock, NULL);
+ if (rc)
+ goto oshr_exit;
} else
goto oshr_exit;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index da1a1b531ca5..667528132b69 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1929,48 +1929,73 @@ parse_query_id_ctxt(struct create_context *cc, struct smb2_file_all_info *buf)
buf->IndexNumber = pdisk_id->DiskFileId;
}
-void
-smb2_parse_contexts(struct TCP_Server_Info *server,
- struct smb2_create_rsp *rsp,
- unsigned int *epoch, char *lease_key, __u8 *oplock,
- struct smb2_file_all_info *buf)
+int smb2_parse_contexts(struct TCP_Server_Info *server,
+ struct kvec *rsp_iov,
+ unsigned int *epoch,
+ char *lease_key, __u8 *oplock,
+ struct smb2_file_all_info *buf)
{
- char *data_offset;
+ struct smb2_create_rsp *rsp = rsp_iov->iov_base;
struct create_context *cc;
- unsigned int next;
- unsigned int remaining;
+ size_t rem, off, len;
+ size_t doff, dlen;
+ size_t noff, nlen;
char *name;
*oplock = 0;
- data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset);
- remaining = le32_to_cpu(rsp->CreateContextsLength);
- cc = (struct create_context *)data_offset;
+
+ off = le32_to_cpu(rsp->CreateContextsOffset);
+ rem = le32_to_cpu(rsp->CreateContextsLength);
+ if (check_add_overflow(off, rem, &len) || len > rsp_iov->iov_len)
+ return -EINVAL;
+ cc = (struct create_context *)((u8 *)rsp + off);
/* Initialize inode number to 0 in case no valid data in qfid context */
if (buf)
buf->IndexNumber = 0;
- while (remaining >= sizeof(struct create_context)) {
- name = le16_to_cpu(cc->NameOffset) + (char *)cc;
- if (le16_to_cpu(cc->NameLength) == 4 &&
- strncmp(name, SMB2_CREATE_REQUEST_LEASE, 4) == 0)
- *oplock = server->ops->parse_lease_buf(cc, epoch,
- lease_key);
- else if (buf && (le16_to_cpu(cc->NameLength) == 4) &&
- strncmp(name, SMB2_CREATE_QUERY_ON_DISK_ID, 4) == 0)
- parse_query_id_ctxt(cc, buf);
-
- next = le32_to_cpu(cc->Next);
- if (!next)
+ while (rem >= sizeof(*cc)) {
+ doff = le16_to_cpu(cc->DataOffset);
+ dlen = le32_to_cpu(cc->DataLength);
+ if (check_add_overflow(doff, dlen, &len) || len > rem)
+ return -EINVAL;
+
+ noff = le16_to_cpu(cc->NameOffset);
+ nlen = le16_to_cpu(cc->NameLength);
+ if (noff + nlen >= doff)
+ return -EINVAL;
+
+ name = (char *)cc + noff;
+ switch (nlen) {
+ case 4:
+ if (!strncmp(name, SMB2_CREATE_REQUEST_LEASE, 4)) {
+ *oplock = server->ops->parse_lease_buf(cc, epoch,
+ lease_key);
+ } else if (buf &&
+ !strncmp(name, SMB2_CREATE_QUERY_ON_DISK_ID, 4)) {
+ parse_query_id_ctxt(cc, buf);
+ }
+ break;
+ default:
+ cifs_dbg(FYI, "%s: unhandled context (nlen=%zu dlen=%zu)\n",
+ __func__, nlen, dlen);
+ if (IS_ENABLED(CONFIG_CIFS_DEBUG2))
+ cifs_dump_mem("context data: ", cc, dlen);
+ break;
+ }
+
+ off = le32_to_cpu(cc->Next);
+ if (!off)
break;
- remaining -= next;
- cc = (struct create_context *)((char *)cc + next);
+ if (check_sub_overflow(rem, off, &rem))
+ return -EINVAL;
+ cc = (struct create_context *)((u8 *)cc + off);
}
if (rsp->OplockLevel != SMB2_OPLOCK_LEVEL_LEASE)
*oplock = rsp->OplockLevel;
- return;
+ return 0;
}
static int
@@ -2680,8 +2705,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
}
- smb2_parse_contexts(server, rsp, &oparms->fid->epoch,
- oparms->fid->lease_key, oplock, buf);
+ rc = smb2_parse_contexts(server, &rsp_iov, &oparms->fid->epoch,
+ oparms->fid->lease_key, oplock, buf);
creat_exit:
SMB2_open_free(&rqst);
free_rsp_buf(resp_buftype, rsp);
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 4d4c0faa3d8a..2f08f7f13ced 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -238,10 +238,12 @@ extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *);
extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *,
enum securityEnum);
-extern void smb2_parse_contexts(struct TCP_Server_Info *server,
- struct smb2_create_rsp *rsp,
- unsigned int *epoch, char *lease_key,
- __u8 *oplock, struct smb2_file_all_info *buf);
+int smb2_parse_contexts(struct TCP_Server_Info *server,
+ struct kvec *rsp_iov,
+ unsigned int *epoch,
+ char *lease_key, __u8 *oplock,
+ struct smb2_file_all_info *buf);
+
extern int smb3_encryption_required(const struct cifs_tcon *tcon);
extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length,
struct kvec *iov, unsigned int min_buf_size);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 98e1b1ddb4ec..90b12c7c0f20 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -409,7 +409,7 @@ static int ext4_valid_extent_entries(struct inode *inode,
{
unsigned short entries;
ext4_lblk_t lblock = 0;
- ext4_lblk_t prev = 0;
+ ext4_lblk_t cur = 0;
if (eh->eh_entries == 0)
return 1;
@@ -435,12 +435,12 @@ static int ext4_valid_extent_entries(struct inode *inode,
/* Check for overlapping extents */
lblock = le32_to_cpu(ext->ee_block);
- if ((lblock <= prev) && prev) {
+ if (lblock < cur) {
pblock = ext4_ext_pblock(ext);
es->s_last_error_block = cpu_to_le64(pblock);
return 0;
}
- prev = lblock + ext4_ext_get_actual_len(ext) - 1;
+ cur = lblock + ext4_ext_get_actual_len(ext);
ext++;
entries--;
}
@@ -460,13 +460,13 @@ static int ext4_valid_extent_entries(struct inode *inode,
/* Check for overlapping index extents */
lblock = le32_to_cpu(ext_idx->ei_block);
- if ((lblock <= prev) && prev) {
+ if (lblock < cur) {
*pblk = ext4_idx_pblock(ext_idx);
return 0;
}
ext_idx++;
entries--;
- prev = lblock;
+ cur = lblock + 1;
}
}
return 1;
diff --git a/tools/testing/selftests/vm/map_hugetlb.c b/tools/testing/selftests/vm/map_hugetlb.c
index c65c55b7a789..312889edb84a 100644
--- a/tools/testing/selftests/vm/map_hugetlb.c
+++ b/tools/testing/selftests/vm/map_hugetlb.c
@@ -15,7 +15,6 @@
#include <unistd.h>
#include <sys/mman.h>
#include <fcntl.h>
-#include "vm_util.h"
#define LENGTH (256UL*1024*1024)
#define PROTECTION (PROT_READ | PROT_WRITE)
@@ -71,16 +70,10 @@ int main(int argc, char **argv)
{
void *addr;
int ret;
- size_t hugepage_size;
size_t length = LENGTH;
int flags = FLAGS;
int shift = 0;
- hugepage_size = default_huge_page_size();
- /* munmap with fail if the length is not page aligned */
- if (hugepage_size > length)
- length = hugepage_size;
-
if (argc > 1)
length = atol(argv[1]) << 20;
if (argc > 2) {