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* Linux 4.19.246
@ 2022-06-06  7:04 Greg Kroah-Hartman
  2022-06-06  7:04 ` Greg Kroah-Hartman
  0 siblings, 1 reply; 2+ messages in thread
From: Greg Kroah-Hartman @ 2022-06-06  7:04 UTC (permalink / raw)
  To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman

I'm announcing the release of the 4.19.246 kernel.

All users of the 4.19 kernel series must upgrade.

The updated 4.19.y git tree can be found at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.19.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/process/submitting-patches.rst   |    2 -
 Makefile                                       |    2 -
 arch/x86/pci/xen.c                             |    5 +++
 block/bio.c                                    |    2 -
 drivers/acpi/sysfs.c                           |   23 +++++++++++----
 drivers/char/tpm/tpm2-cmd.c                    |   11 ++++++-
 drivers/char/tpm/tpm_ibmvtpm.c                 |    1 
 drivers/gpu/drm/i915/intel_pm.c                |    2 -
 drivers/hid/hid-multitouch.c                   |    3 ++
 drivers/i2c/busses/i2c-ismt.c                  |   14 +++++++++
 drivers/i2c/busses/i2c-thunderx-pcidrv.c       |    1 
 drivers/md/dm-crypt.c                          |   14 +++++++--
 drivers/md/dm-integrity.c                      |    2 -
 drivers/md/dm-stats.c                          |    8 +++++
 drivers/md/dm-verity-target.c                  |    1 
 drivers/net/ethernet/faraday/ftgmac100.c       |    5 +++
 drivers/staging/rtl8723bs/os_dep/ioctl_linux.c |    6 ++--
 fs/exec.c                                      |   17 +++++++++++
 fs/nfsd/nfs4state.c                            |   12 ++------
 include/net/inet_hashtables.h                  |    2 -
 include/net/netfilter/nf_conntrack_core.h      |    7 ++++
 include/net/secure_seq.h                       |    4 +-
 lib/assoc_array.c                              |    8 +++++
 mm/zsmalloc.c                                  |   37 ++++++++++++++++++++++---
 net/core/filter.c                              |    4 +-
 net/core/secure_seq.c                          |    4 +-
 net/ipv4/inet_hashtables.c                     |   28 ++++++++++++++----
 net/ipv6/inet6_hashtables.c                    |    4 +-
 net/key/af_key.c                               |    6 ++--
 net/wireless/core.c                            |    7 ++--
 net/wireless/reg.c                             |    1 
 tools/lib/traceevent/Makefile                  |    2 -
 tools/perf/bench/bench.h                       |    4 ++
 tools/perf/bench/futex-hash.c                  |   12 ++++----
 tools/perf/bench/futex-lock-pi.c               |   11 +++----
 tools/perf/tests/bp_account.c                  |    2 -
 36 files changed, 208 insertions(+), 66 deletions(-)

Akira Yokosawa (1):
      docs: submitting-patches: Fix crossref to 'The canonical patch format'

Andy Shevchenko (1):
      ACPI: sysfs: Make sparse happy about address space in use

Arnaldo Carvalho de Melo (2):
      perf bench: Share some global variables to fix build with gcc 10
      perf tests bp_account: Make global variable static

Ben Hutchings (1):
      libtraceevent: Fix build with binutils 2.35

Chuck Lever (1):
      NFSD: Fix possible sleep during nfsd4_release_lockowner()

Dan Carpenter (1):
      dm integrity: fix error code in dm_integrity_ctr()

Denis Efremov (Oracle) (1):
      staging: rtl8723bs: prevent ->Ssid overflow in rtw_wx_set_scan()

Eric Dumazet (1):
      tcp: change source port randomizarion at connect() time

Florian Westphal (1):
      netfilter: conntrack: re-fetch conntrack after insertion

Greg Kroah-Hartman (1):
      Linux 4.19.246

Gustavo A. R. Silva (1):
      drm/i915: Fix -Wstringop-overflow warning in call to intel_read_wm_latency()

Haimin Zhang (1):
      block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern

Joel Stanley (1):
      net: ftgmac100: Disable hardware checksum on AST2600

Kees Cook (1):
      exec: Force single empty string when argv is empty

Liu Jian (1):
      bpf: Enlarge offset check value to INT_MAX in bpf_skb_{load,store}_bytes

Lorenzo Pieralisi (1):
      ACPI: sysfs: Fix BERT error region memory mapping

Marek Maślanka (1):
      HID: multitouch: Add support for Google Whiskers Touchpad

Mika Westerberg (1):
      i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging

Mikulas Patocka (2):
      dm crypt: make printing of the key constant-time
      dm stats: add cond_resched when looping over entries

Miri Korenblit (1):
      cfg80211: set custom regdomain after wiphy registration

Piyush Malgujar (1):
      drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers

Sarthak Kukreti (1):
      dm verity: set DM_TARGET_IMMUTABLE feature flag

Stefan Mahnke-Hartmann (1):
      tpm: Fix buffer access in tpm2_get_tpm_pt()

Stephen Brennan (1):
      assoc_array: Fix BUG_ON during garbage collect

Sultan Alsawaf (1):
      zsmalloc: fix races between asynchronous zspage free and page migration

Thomas Bartschies (1):
      net: af_key: check encryption module availability consistency

Thomas Gleixner (1):
      x86/pci/xen: Disable PCI/MSI[-X] masking for XEN_HVM guests

Willy Tarreau (1):
      secure_seq: use the 64 bits of the siphash for port offset calculation

Xiu Jianfeng (1):
      tpm: ibmvtpm: Correct the return value in tpm_ibmvtpm_probe()


^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: Linux 4.19.246
  2022-06-06  7:04 Linux 4.19.246 Greg Kroah-Hartman
@ 2022-06-06  7:04 ` Greg Kroah-Hartman
  0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2022-06-06  7:04 UTC (permalink / raw)
  To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman

diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index c0917107b90a..3739c1ce686d 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -133,7 +133,7 @@ as you intend it to.
 
 The maintainer will thank you if you write your patch description in a
 form which can be easily pulled into Linux's source code management
-system, ``git``, as a "commit log".  See :ref:`explicit_in_reply_to`.
+system, ``git``, as a "commit log".  See :ref:`the_canonical_patch_format`.
 
 Solve only one problem per patch.  If your description starts to get
 long, that's a sign that you probably need to split up your patch.
diff --git a/Makefile b/Makefile
index 64a64f6ba90d..e1cbe6e8bcae 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 4
 PATCHLEVEL = 19
-SUBLEVEL = 245
+SUBLEVEL = 246
 EXTRAVERSION =
 NAME = "People's Front"
 
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 22da9bfd8a45..bacf8d988f65 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -441,6 +441,11 @@ void __init xen_msi_init(void)
 
 	x86_msi.setup_msi_irqs = xen_hvm_setup_msi_irqs;
 	x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
+	/*
+	 * With XEN PIRQ/Eventchannels in use PCI/MSI[-X] masking is solely
+	 * controlled by the hypervisor.
+	 */
+	pci_msi_ignore_mask = 1;
 }
 #endif
 
diff --git a/block/bio.c b/block/bio.c
index fe749404ef93..7858b2d23916 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1528,7 +1528,7 @@ struct bio *bio_copy_kern(struct request_queue *q, void *data, unsigned int len,
 		if (bytes > len)
 			bytes = len;
 
-		page = alloc_page(q->bounce_gfp | gfp_mask);
+		page = alloc_page(q->bounce_gfp | __GFP_ZERO | gfp_mask);
 		if (!page)
 			goto cleanup;
 
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 39ee0ca636aa..0b6489fd5d0d 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -439,18 +439,29 @@ static ssize_t acpi_data_show(struct file *filp, struct kobject *kobj,
 {
 	struct acpi_data_attr *data_attr;
 	void __iomem *base;
-	ssize_t rc;
+	ssize_t size;
 
 	data_attr = container_of(bin_attr, struct acpi_data_attr, attr);
+	size = data_attr->attr.size;
+
+	if (offset < 0)
+		return -EINVAL;
+
+	if (offset >= size)
+		return 0;
 
-	base = acpi_os_map_memory(data_attr->addr, data_attr->attr.size);
+	if (count > size - offset)
+		count = size - offset;
+
+	base = acpi_os_map_iomem(data_attr->addr, size);
 	if (!base)
 		return -ENOMEM;
-	rc = memory_read_from_buffer(buf, count, &offset, base,
-				     data_attr->attr.size);
-	acpi_os_unmap_memory(base, data_attr->attr.size);
 
-	return rc;
+	memcpy_fromio(buf, base + offset, count);
+
+	acpi_os_unmap_iomem(base, size);
+
+	return count;
 }
 
 static int acpi_bert_data_init(void *th, struct acpi_data_attr *data_attr)
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index e71c6b24aed1..ce497b0691d7 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -717,7 +717,16 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id,  u32 *value,
 	if (!rc) {
 		out = (struct tpm2_get_cap_out *)
 			&buf.data[TPM_HEADER_SIZE];
-		*value = be32_to_cpu(out->value);
+		/*
+		 * To prevent failing boot up of some systems, Infineon TPM2.0
+		 * returns SUCCESS on TPM2_Startup in field upgrade mode. Also
+		 * the TPM2_Getcapability command returns a zero length list
+		 * in field upgrade mode.
+		 */
+		if (be32_to_cpu(out->property_cnt) > 0)
+			*value = be32_to_cpu(out->value);
+		else
+			rc = -ENODATA;
 	}
 	tpm_buf_destroy(&buf);
 	return rc;
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 3ba67bc6baba..80647eb071fd 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -692,6 +692,7 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev,
 	if (!wait_event_timeout(ibmvtpm->crq_queue.wq,
 				ibmvtpm->rtce_buf != NULL,
 				HZ)) {
+		rc = -ENODEV;
 		dev_err(dev, "CRQ response timed out\n");
 		goto init_irq_cleanup;
 	}
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 1847faa45d37..af8865281b47 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2814,7 +2814,7 @@ hsw_compute_linetime_wm(const struct intel_crtc_state *cstate)
 }
 
 static void intel_read_wm_latency(struct drm_i915_private *dev_priv,
-				  uint16_t wm[8])
+				  uint16_t wm[])
 {
 	if (INTEL_GEN(dev_priv) >= 9) {
 		uint32_t val;
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index c20945ed1dc1..e99286258f62 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2111,6 +2111,9 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_GOOGLE,
 		HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
 			USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) },
+	{ .driver_data = MT_CLS_GOOGLE,
+		HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_GOOGLE,
+			USB_DEVICE_ID_GOOGLE_WHISKERS) },
 
 	/* Generic MT device */
 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 0d1c3ec8cb40..80796061102f 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -80,6 +80,7 @@
 
 #define ISMT_DESC_ENTRIES	2	/* number of descriptor entries */
 #define ISMT_MAX_RETRIES	3	/* number of SMBus retries to attempt */
+#define ISMT_LOG_ENTRIES	3	/* number of interrupt cause log entries */
 
 /* Hardware Descriptor Constants - Control Field */
 #define ISMT_DESC_CWRL	0x01	/* Command/Write Length */
@@ -173,6 +174,8 @@ struct ismt_priv {
 	u8 head;				/* ring buffer head pointer */
 	struct completion cmp;			/* interrupt completion */
 	u8 buffer[I2C_SMBUS_BLOCK_MAX + 16];	/* temp R/W data buffer */
+	dma_addr_t log_dma;
+	u32 *log;
 };
 
 /**
@@ -406,6 +409,9 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
 	memset(desc, 0, sizeof(struct ismt_desc));
 	desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);
 
+	/* Always clear the log entries */
+	memset(priv->log, 0, ISMT_LOG_ENTRIES * sizeof(u32));
+
 	/* Initialize common control bits */
 	if (likely(pci_dev_msi_enabled(priv->pci_dev)))
 		desc->control = ISMT_DESC_INT | ISMT_DESC_FAIR;
@@ -695,6 +701,8 @@ static void ismt_hw_init(struct ismt_priv *priv)
 	/* initialize the Master Descriptor Base Address (MDBA) */
 	writeq(priv->io_rng_dma, priv->smba + ISMT_MSTR_MDBA);
 
+	writeq(priv->log_dma, priv->smba + ISMT_GR_SMTICL);
+
 	/* initialize the Master Control Register (MCTRL) */
 	writel(ISMT_MCTRL_MEIE, priv->smba + ISMT_MSTR_MCTRL);
 
@@ -784,6 +792,12 @@ static int ismt_dev_init(struct ismt_priv *priv)
 	priv->head = 0;
 	init_completion(&priv->cmp);
 
+	priv->log = dmam_alloc_coherent(&priv->pci_dev->dev,
+					ISMT_LOG_ENTRIES * sizeof(u32),
+					&priv->log_dma, GFP_KERNEL);
+	if (!priv->log)
+		return -ENOMEM;
+
 	return 0;
 }
 
diff --git a/drivers/i2c/busses/i2c-thunderx-pcidrv.c b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
index 19f8eec38717..107aeb8b54da 100644
--- a/drivers/i2c/busses/i2c-thunderx-pcidrv.c
+++ b/drivers/i2c/busses/i2c-thunderx-pcidrv.c
@@ -208,6 +208,7 @@ static int thunder_i2c_probe_pci(struct pci_dev *pdev,
 	i2c->adap.bus_recovery_info = &octeon_i2c_recovery_info;
 	i2c->adap.dev.parent = dev;
 	i2c->adap.dev.of_node = pdev->dev.of_node;
+	i2c->adap.dev.fwnode = dev->fwnode;
 	snprintf(i2c->adap.name, sizeof(i2c->adap.name),
 		 "Cavium ThunderX i2c adapter at %s", dev_name(dev));
 	i2c_set_adapdata(&i2c->adap, i2c);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3441ad140b58..e38c713e882e 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2932,6 +2932,11 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	return DM_MAPIO_SUBMITTED;
 }
 
+static char hex2asc(unsigned char c)
+{
+	return c + '0' + ((unsigned)(9 - c) >> 4 & 0x27);
+}
+
 static void crypt_status(struct dm_target *ti, status_type_t type,
 			 unsigned status_flags, char *result, unsigned maxlen)
 {
@@ -2950,9 +2955,12 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
 		if (cc->key_size > 0) {
 			if (cc->key_string)
 				DMEMIT(":%u:%s", cc->key_size, cc->key_string);
-			else
-				for (i = 0; i < cc->key_size; i++)
-					DMEMIT("%02x", cc->key[i]);
+			else {
+				for (i = 0; i < cc->key_size; i++) {
+					DMEMIT("%c%c", hex2asc(cc->key[i] >> 4),
+					       hex2asc(cc->key[i] & 0xf));
+				}
+			}
 		} else
 			DMEMIT("-");
 
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index b0105d53918a..8456e82409e2 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -3565,8 +3565,6 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	}
 
 	if (should_write_sb) {
-		int r;
-
 		init_journal(ic, 0, ic->journal_sections, 0);
 		r = dm_integrity_failed(ic);
 		if (unlikely(r)) {
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 21de30b4e2a1..3d59f3e208c5 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -224,6 +224,7 @@ void dm_stats_cleanup(struct dm_stats *stats)
 				       atomic_read(&shared->in_flight[READ]),
 				       atomic_read(&shared->in_flight[WRITE]));
 			}
+			cond_resched();
 		}
 		dm_stat_free(&s->rcu_head);
 	}
@@ -313,6 +314,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
 	for (ni = 0; ni < n_entries; ni++) {
 		atomic_set(&s->stat_shared[ni].in_flight[READ], 0);
 		atomic_set(&s->stat_shared[ni].in_flight[WRITE], 0);
+		cond_resched();
 	}
 
 	if (s->n_histogram_entries) {
@@ -325,6 +327,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
 		for (ni = 0; ni < n_entries; ni++) {
 			s->stat_shared[ni].tmp.histogram = hi;
 			hi += s->n_histogram_entries + 1;
+			cond_resched();
 		}
 	}
 
@@ -345,6 +348,7 @@ static int dm_stats_create(struct dm_stats *stats, sector_t start, sector_t end,
 			for (ni = 0; ni < n_entries; ni++) {
 				p[ni].histogram = hi;
 				hi += s->n_histogram_entries + 1;
+				cond_resched();
 			}
 		}
 	}
@@ -474,6 +478,7 @@ static int dm_stats_list(struct dm_stats *stats, const char *program,
 			}
 			DMEMIT("\n");
 		}
+		cond_resched();
 	}
 	mutex_unlock(&stats->mutex);
 
@@ -750,6 +755,7 @@ static void __dm_stat_clear(struct dm_stat *s, size_t idx_start, size_t idx_end,
 				local_irq_enable();
 			}
 		}
+		cond_resched();
 	}
 }
 
@@ -865,6 +871,8 @@ static int dm_stats_print(struct dm_stats *stats, int id,
 
 		if (unlikely(sz + 1 >= maxlen))
 			goto buffer_overflow;
+
+		cond_resched();
 	}
 
 	if (clear)
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index fa8c201fca77..36945030520a 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1176,6 +1176,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 
 static struct target_type verity_target = {
 	.name		= "verity",
+	.features	= DM_TARGET_IMMUTABLE,
 	.version	= {1, 4, 0},
 	.module		= THIS_MODULE,
 	.ctr		= verity_ctr,
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 964407deca35..23c019d1278c 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1869,6 +1869,11 @@ static int ftgmac100_probe(struct platform_device *pdev)
 	/* AST2400  doesn't have working HW checksum generation */
 	if (np && (of_device_is_compatible(np, "aspeed,ast2400-mac")))
 		netdev->hw_features &= ~NETIF_F_HW_CSUM;
+
+	/* AST2600 tx checksum with NCSI is broken */
+	if (priv->use_ncsi && of_device_is_compatible(np, "aspeed,ast2600-mac"))
+		netdev->hw_features &= ~NETIF_F_HW_CSUM;
+
 	if (np && of_get_property(np, "no-hw-checksum", NULL))
 		netdev->hw_features &= ~(NETIF_F_HW_CSUM | NETIF_F_RXCSUM);
 	netdev->features |= netdev->hw_features;
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index 466d25ccc4bb..40d7130a4909 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -1359,9 +1359,11 @@ static int rtw_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
 
 					sec_len = *(pos++); len-= 1;
 
-					if (sec_len>0 && sec_len<=len) {
+					if (sec_len > 0 &&
+					    sec_len <= len &&
+					    sec_len <= 32) {
 						ssid[ssid_index].SsidLength = sec_len;
-						memcpy(ssid[ssid_index].Ssid, pos, ssid[ssid_index].SsidLength);
+						memcpy(ssid[ssid_index].Ssid, pos, sec_len);
 						/* DBG_871X("%s COMBO_SCAN with specific ssid:%s, %d\n", __func__ */
 						/* 	, ssid[ssid_index].Ssid, ssid[ssid_index].SsidLength); */
 						ssid_index++;
diff --git a/fs/exec.c b/fs/exec.c
index e87e3c020c61..28e3b5eb2f4a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1805,6 +1805,9 @@ static int __do_execve_file(int fd, struct filename *filename,
 		goto out_unmark;
 
 	bprm->argc = count(argv, MAX_ARG_STRINGS);
+	if (bprm->argc == 0)
+		pr_warn_once("process '%s' launched '%s' with NULL argv: empty string added\n",
+			     current->comm, bprm->filename);
 	if ((retval = bprm->argc) < 0)
 		goto out;
 
@@ -1829,6 +1832,20 @@ static int __do_execve_file(int fd, struct filename *filename,
 	if (retval < 0)
 		goto out;
 
+	/*
+	 * When argv is empty, add an empty string ("") as argv[0] to
+	 * ensure confused userspace programs that start processing
+	 * from argv[1] won't end up walking envp. See also
+	 * bprm_stack_limits().
+	 */
+	if (bprm->argc == 0) {
+		const char *argv[] = { "", NULL };
+		retval = copy_strings_kernel(1, argv, bprm);
+		if (retval < 0)
+			goto out;
+		bprm->argc = 1;
+	}
+
 	retval = exec_binprm(bprm);
 	if (retval < 0)
 		goto out;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ed5429d18595..78191320f8e2 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -6401,16 +6401,12 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
 		if (sop->so_is_open_owner || !same_owner_str(sop, owner))
 			continue;
 
-		/* see if there are still any locks associated with it */
-		lo = lockowner(sop);
-		list_for_each_entry(stp, &sop->so_stateids, st_perstateowner) {
-			if (check_for_locks(stp->st_stid.sc_file, lo)) {
-				status = nfserr_locks_held;
-				spin_unlock(&clp->cl_lock);
-				return status;
-			}
+		if (atomic_read(&sop->so_count) != 1) {
+			spin_unlock(&clp->cl_lock);
+			return nfserr_locks_held;
 		}
 
+		lo = lockowner(sop);
 		nfs4_get_stateowner(sop);
 		break;
 	}
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index fa5fe23ca6aa..2d04f3e06de1 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -407,7 +407,7 @@ static inline void sk_rcv_saddr_set(struct sock *sk, __be32 addr)
 }
 
 int __inet_hash_connect(struct inet_timewait_death_row *death_row,
-			struct sock *sk, u32 port_offset,
+			struct sock *sk, u64 port_offset,
 			int (*check_established)(struct inet_timewait_death_row *,
 						 struct sock *, __u16,
 						 struct inet_timewait_sock **));
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 2a3e0974a6af..4e3fff9f929b 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -58,8 +58,13 @@ static inline int nf_conntrack_confirm(struct sk_buff *skb)
 	int ret = NF_ACCEPT;
 
 	if (ct) {
-		if (!nf_ct_is_confirmed(ct))
+		if (!nf_ct_is_confirmed(ct)) {
 			ret = __nf_conntrack_confirm(skb);
+
+			if (ret == NF_ACCEPT)
+				ct = (struct nf_conn *)skb_nfct(skb);
+		}
+
 		if (likely(ret == NF_ACCEPT))
 			nf_ct_deliver_cached_events(ct);
 	}
diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index d7d2495f83c2..dac91aa38c5a 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -4,8 +4,8 @@
 
 #include <linux/types.h>
 
-u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
-u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+u64 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
+u64 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
 			       __be16 dport);
 u32 secure_tcp_seq(__be32 saddr, __be32 daddr,
 		   __be16 sport, __be16 dport);
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index 59875eb278ea..3b1ff063ceca 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -1465,6 +1465,7 @@ int assoc_array_gc(struct assoc_array *array,
 	struct assoc_array_ptr *cursor, *ptr;
 	struct assoc_array_ptr *new_root, *new_parent, **new_ptr_pp;
 	unsigned long nr_leaves_on_tree;
+	bool retained;
 	int keylen, slot, nr_free, next_slot, i;
 
 	pr_devel("-->%s()\n", __func__);
@@ -1541,6 +1542,7 @@ int assoc_array_gc(struct assoc_array *array,
 		goto descend;
 	}
 
+retry_compress:
 	pr_devel("-- compress node %p --\n", new_n);
 
 	/* Count up the number of empty slots in this node and work out the
@@ -1558,6 +1560,7 @@ int assoc_array_gc(struct assoc_array *array,
 	pr_devel("free=%d, leaves=%lu\n", nr_free, new_n->nr_leaves_on_branch);
 
 	/* See what we can fold in */
+	retained = false;
 	next_slot = 0;
 	for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
 		struct assoc_array_shortcut *s;
@@ -1607,9 +1610,14 @@ int assoc_array_gc(struct assoc_array *array,
 			pr_devel("[%d] retain node %lu/%d [nx %d]\n",
 				 slot, child->nr_leaves_on_branch, nr_free + 1,
 				 next_slot);
+			retained = true;
 		}
 	}
 
+	if (retained && new_n->nr_leaves_on_branch <= ASSOC_ARRAY_FAN_OUT) {
+		pr_devel("internal nodes remain despite enough space, retrying\n");
+		goto retry_compress;
+	}
 	pr_devel("after: %lu\n", new_n->nr_leaves_on_branch);
 
 	nr_leaves_on_tree = new_n->nr_leaves_on_branch;
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 11e81b3ff0cf..4d71356ea66a 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1812,11 +1812,40 @@ static enum fullness_group putback_zspage(struct size_class *class,
  */
 static void lock_zspage(struct zspage *zspage)
 {
-	struct page *page = get_first_page(zspage);
+	struct page *curr_page, *page;
 
-	do {
-		lock_page(page);
-	} while ((page = get_next_page(page)) != NULL);
+	/*
+	 * Pages we haven't locked yet can be migrated off the list while we're
+	 * trying to lock them, so we need to be careful and only attempt to
+	 * lock each page under migrate_read_lock(). Otherwise, the page we lock
+	 * may no longer belong to the zspage. This means that we may wait for
+	 * the wrong page to unlock, so we must take a reference to the page
+	 * prior to waiting for it to unlock outside migrate_read_lock().
+	 */
+	while (1) {
+		migrate_read_lock(zspage);
+		page = get_first_page(zspage);
+		if (trylock_page(page))
+			break;
+		get_page(page);
+		migrate_read_unlock(zspage);
+		wait_on_page_locked(page);
+		put_page(page);
+	}
+
+	curr_page = page;
+	while ((page = get_next_page(curr_page))) {
+		if (trylock_page(page)) {
+			curr_page = page;
+		} else {
+			get_page(page);
+			migrate_read_unlock(zspage);
+			wait_on_page_locked(page);
+			put_page(page);
+			migrate_read_lock(zspage);
+		}
+	}
+	migrate_read_unlock(zspage);
 }
 
 static struct dentry *zs_mount(struct file_system_type *fs_type,
diff --git a/net/core/filter.c b/net/core/filter.c
index 7d68c98a00aa..c1310c9d1b90 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1666,7 +1666,7 @@ BPF_CALL_5(bpf_skb_store_bytes, struct sk_buff *, skb, u32, offset,
 
 	if (unlikely(flags & ~(BPF_F_RECOMPUTE_CSUM | BPF_F_INVALIDATE_HASH)))
 		return -EINVAL;
-	if (unlikely(offset > 0xffff))
+	if (unlikely(offset > INT_MAX))
 		return -EFAULT;
 	if (unlikely(bpf_try_make_writable(skb, offset + len)))
 		return -EFAULT;
@@ -1701,7 +1701,7 @@ BPF_CALL_4(bpf_skb_load_bytes, const struct sk_buff *, skb, u32, offset,
 {
 	void *ptr;
 
-	if (unlikely(offset > 0xffff))
+	if (unlikely(offset > INT_MAX))
 		goto err_clear;
 
 	ptr = skb_header_pointer(skb, offset, len, to);
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 3a8128341e6a..6fd25279bee9 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -96,7 +96,7 @@ u32 secure_tcpv6_seq(const __be32 *saddr, const __be32 *daddr,
 }
 EXPORT_SYMBOL(secure_tcpv6_seq);
 
-u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+u64 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
 			       __be16 dport)
 {
 	const struct {
@@ -146,7 +146,7 @@ u32 secure_tcp_seq(__be32 saddr, __be32 daddr,
 }
 EXPORT_SYMBOL_GPL(secure_tcp_seq);
 
-u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport)
+u64 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport)
 {
 	net_secret_init();
 	return siphash_4u32((__force u32)saddr, (__force u32)daddr,
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index c96a5871b49d..0a8aec3f37cc 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -507,7 +507,7 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 	return -EADDRNOTAVAIL;
 }
 
-static u32 inet_sk_port_offset(const struct sock *sk)
+static u64 inet_sk_port_offset(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
 
@@ -714,8 +714,19 @@ void inet_unhash(struct sock *sk)
 }
 EXPORT_SYMBOL_GPL(inet_unhash);
 
+/* RFC 6056 3.3.4.  Algorithm 4: Double-Hash Port Selection Algorithm
+ * Note that we use 32bit integers (vs RFC 'short integers')
+ * because 2^16 is not a multiple of num_ephemeral and this
+ * property might be used by clever attacker.
+ * RFC claims using TABLE_LENGTH=10 buckets gives an improvement,
+ * we use 256 instead to really give more isolation and
+ * privacy, this only consumes 1 KB of kernel memory.
+ */
+#define INET_TABLE_PERTURB_SHIFT 8
+static u32 table_perturb[1 << INET_TABLE_PERTURB_SHIFT];
+
 int __inet_hash_connect(struct inet_timewait_death_row *death_row,
-		struct sock *sk, u32 port_offset,
+		struct sock *sk, u64 port_offset,
 		int (*check_established)(struct inet_timewait_death_row *,
 			struct sock *, __u16, struct inet_timewait_sock **))
 {
@@ -727,7 +738,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 	struct inet_bind_bucket *tb;
 	u32 remaining, offset;
 	int ret, i, low, high;
-	static u32 hint;
+	u32 index;
 
 	if (port) {
 		head = &hinfo->bhash[inet_bhashfn(net, port,
@@ -752,7 +763,12 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 	if (likely(remaining > 1))
 		remaining &= ~1U;
 
-	offset = (hint + port_offset) % remaining;
+	net_get_random_once(table_perturb, sizeof(table_perturb));
+	index = hash_32(port_offset, INET_TABLE_PERTURB_SHIFT);
+
+	offset = READ_ONCE(table_perturb[index]) + port_offset;
+	offset %= remaining;
+
 	/* In first pass we try ports of @low parity.
 	 * inet_csk_get_port() does the opposite choice.
 	 */
@@ -805,7 +821,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 	return -EADDRNOTAVAIL;
 
 ok:
-	hint += i + 2;
+	WRITE_ONCE(table_perturb[index], READ_ONCE(table_perturb[index]) + i + 2);
 
 	/* Head lock still held and bh's disabled */
 	inet_bind_hash(sk, tb, port);
@@ -828,7 +844,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 int inet_hash_connect(struct inet_timewait_death_row *death_row,
 		      struct sock *sk)
 {
-	u32 port_offset = 0;
+	u64 port_offset = 0;
 
 	if (!inet_sk(sk)->inet_num)
 		port_offset = inet_sk_port_offset(sk);
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index d9e2575dad94..d8391921363f 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -311,7 +311,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 	return -EADDRNOTAVAIL;
 }
 
-static u32 inet6_sk_port_offset(const struct sock *sk)
+static u64 inet6_sk_port_offset(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
 
@@ -323,7 +323,7 @@ static u32 inet6_sk_port_offset(const struct sock *sk)
 int inet6_hash_connect(struct inet_timewait_death_row *death_row,
 		       struct sock *sk)
 {
-	u32 port_offset = 0;
+	u64 port_offset = 0;
 
 	if (!inet_sk(sk)->inet_num)
 		port_offset = inet6_sk_port_offset(sk);
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 170960ef7e36..1bbb6ec89ff3 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -2910,7 +2910,7 @@ static int count_ah_combs(const struct xfrm_tmpl *t)
 			break;
 		if (!aalg->pfkey_supported)
 			continue;
-		if (aalg_tmpl_set(t, aalg))
+		if (aalg_tmpl_set(t, aalg) && aalg->available)
 			sz += sizeof(struct sadb_comb);
 	}
 	return sz + sizeof(struct sadb_prop);
@@ -2928,7 +2928,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
 		if (!ealg->pfkey_supported)
 			continue;
 
-		if (!(ealg_tmpl_set(t, ealg)))
+		if (!(ealg_tmpl_set(t, ealg) && ealg->available))
 			continue;
 
 		for (k = 1; ; k++) {
@@ -2939,7 +2939,7 @@ static int count_esp_combs(const struct xfrm_tmpl *t)
 			if (!aalg->pfkey_supported)
 				continue;
 
-			if (aalg_tmpl_set(t, aalg))
+			if (aalg_tmpl_set(t, aalg) && aalg->available)
 				sz += sizeof(struct sadb_comb);
 		}
 	}
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 68660781aa51..7c66f99046ac 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -4,6 +4,7 @@
  * Copyright 2006-2010		Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
  * Copyright 2015-2017	Intel Deutschland GmbH
+ * Copyright (C) 2018-2021 Intel Corporation
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -835,9 +836,6 @@ int wiphy_register(struct wiphy *wiphy)
 		return res;
 	}
 
-	/* set up regulatory info */
-	wiphy_regulatory_register(wiphy);
-
 	list_add_rcu(&rdev->list, &cfg80211_rdev_list);
 	cfg80211_rdev_list_generation++;
 
@@ -851,6 +849,9 @@ int wiphy_register(struct wiphy *wiphy)
 	cfg80211_debugfs_rdev_add(rdev);
 	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
 
+	/* set up regulatory info */
+	wiphy_regulatory_register(wiphy);
+
 	if (wiphy->regulatory_flags & REGULATORY_CUSTOM_REG) {
 		struct regulatory_request request;
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index c7825b951f72..dd8503a3ef1e 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -3756,6 +3756,7 @@ void wiphy_regulatory_register(struct wiphy *wiphy)
 
 	wiphy_update_regulatory(wiphy, lr->initiator);
 	wiphy_all_share_dfs_chan_state(wiphy);
+	reg_process_self_managed_hints();
 }
 
 void wiphy_regulatory_deregister(struct wiphy *wiphy)
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 05f8a0f27121..b7f7e4e541d7 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -263,7 +263,7 @@ define do_generate_dynamic_list_file
 	xargs echo "U w W" | tr 'w ' 'W\n' | sort -u | xargs echo`;\
 	if [ "$$symbol_type" = "U W" ];then				\
 		(echo '{';						\
-		$(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;\
+		$(NM) -u -D $1 | awk 'NF>1 {sub("@.*", "", $$2); print "\t"$$2";"}' | sort -u;\
 		echo '};';						\
 		) > $2;							\
 	else								\
diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h
index 6c9fcd757f31..b3e418afc21a 100644
--- a/tools/perf/bench/bench.h
+++ b/tools/perf/bench/bench.h
@@ -2,6 +2,10 @@
 #ifndef BENCH_H
 #define BENCH_H
 
+#include <sys/time.h>
+
+extern struct timeval bench__start, bench__end, bench__runtime;
+
 /*
  * The madvise transparent hugepage constants were added in glibc
  * 2.13. For compatibility with older versions of glibc, define these
diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c
index 9aa3a674829b..ee9b28065109 100644
--- a/tools/perf/bench/futex-hash.c
+++ b/tools/perf/bench/futex-hash.c
@@ -35,7 +35,7 @@ static unsigned int nfutexes = 1024;
 static bool fshared = false, done = false, silent = false;
 static int futex_flag = 0;
 
-struct timeval start, end, runtime;
+struct timeval bench__start, bench__end, bench__runtime;
 static pthread_mutex_t thread_lock;
 static unsigned int threads_starting;
 static struct stats throughput_stats;
@@ -101,8 +101,8 @@ static void toggle_done(int sig __maybe_unused,
 {
 	/* inform all threads that we're done for the day */
 	done = true;
-	gettimeofday(&end, NULL);
-	timersub(&end, &start, &runtime);
+	gettimeofday(&bench__end, NULL);
+	timersub(&bench__end, &bench__start, &bench__runtime);
 }
 
 static void print_summary(void)
@@ -112,7 +112,7 @@ static void print_summary(void)
 
 	printf("%sAveraged %ld operations/sec (+- %.2f%%), total secs = %d\n",
 	       !silent ? "\n" : "", avg, rel_stddev_stats(stddev, avg),
-	       (int) runtime.tv_sec);
+	       (int)bench__runtime.tv_sec);
 }
 
 int bench_futex_hash(int argc, const char **argv)
@@ -159,7 +159,7 @@ int bench_futex_hash(int argc, const char **argv)
 
 	threads_starting = nthreads;
 	pthread_attr_init(&thread_attr);
-	gettimeofday(&start, NULL);
+	gettimeofday(&bench__start, NULL);
 	for (i = 0; i < nthreads; i++) {
 		worker[i].tid = i;
 		worker[i].futex = calloc(nfutexes, sizeof(*worker[i].futex));
@@ -202,7 +202,7 @@ int bench_futex_hash(int argc, const char **argv)
 	pthread_mutex_destroy(&thread_lock);
 
 	for (i = 0; i < nthreads; i++) {
-		unsigned long t = worker[i].ops/runtime.tv_sec;
+		unsigned long t = worker[i].ops / bench__runtime.tv_sec;
 		update_stats(&throughput_stats, t);
 		if (!silent) {
 			if (nfutexes == 1)
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 8e9c4753e304..017609ae3590 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -35,7 +35,6 @@ static bool silent = false, multi = false;
 static bool done = false, fshared = false;
 static unsigned int nthreads = 0;
 static int futex_flag = 0;
-struct timeval start, end, runtime;
 static pthread_mutex_t thread_lock;
 static unsigned int threads_starting;
 static struct stats throughput_stats;
@@ -62,7 +61,7 @@ static void print_summary(void)
 
 	printf("%sAveraged %ld operations/sec (+- %.2f%%), total secs = %d\n",
 	       !silent ? "\n" : "", avg, rel_stddev_stats(stddev, avg),
-	       (int) runtime.tv_sec);
+	       (int)bench__runtime.tv_sec);
 }
 
 static void toggle_done(int sig __maybe_unused,
@@ -71,8 +70,8 @@ static void toggle_done(int sig __maybe_unused,
 {
 	/* inform all threads that we're done for the day */
 	done = true;
-	gettimeofday(&end, NULL);
-	timersub(&end, &start, &runtime);
+	gettimeofday(&bench__end, NULL);
+	timersub(&bench__end, &bench__start, &bench__runtime);
 }
 
 static void *workerfn(void *arg)
@@ -183,7 +182,7 @@ int bench_futex_lock_pi(int argc, const char **argv)
 
 	threads_starting = nthreads;
 	pthread_attr_init(&thread_attr);
-	gettimeofday(&start, NULL);
+	gettimeofday(&bench__start, NULL);
 
 	create_threads(worker, thread_attr, cpu);
 	pthread_attr_destroy(&thread_attr);
@@ -209,7 +208,7 @@ int bench_futex_lock_pi(int argc, const char **argv)
 	pthread_mutex_destroy(&thread_lock);
 
 	for (i = 0; i < nthreads; i++) {
-		unsigned long t = worker[i].ops/runtime.tv_sec;
+		unsigned long t = worker[i].ops / bench__runtime.tv_sec;
 
 		update_stats(&throughput_stats, t);
 		if (!silent)
diff --git a/tools/perf/tests/bp_account.c b/tools/perf/tests/bp_account.c
index a20cbc445426..624e4ef73d1c 100644
--- a/tools/perf/tests/bp_account.c
+++ b/tools/perf/tests/bp_account.c
@@ -22,7 +22,7 @@
 #include "perf.h"
 #include "cloexec.h"
 
-volatile long the_var;
+static volatile long the_var;
 
 static noinline int test_function(void)
 {

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