commit:     044d7e58892acf12dc60d42da17cec146792c238
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Thu Feb  3 11:46:24 2022 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Thu Feb  3 11:46:24 2022 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=044d7e58

Linux patch 4.4.302

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README              |   4 +
 1301_linux-4.4.302.patch | 884 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 888 insertions(+)

diff --git a/0000_README b/0000_README
index c28b7561..00214606 100644
--- a/0000_README
+++ b/0000_README
@@ -1247,6 +1247,10 @@ Patch:  1300_linux-4.4.301.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.4.301
 
+Patch:  1301_linux-4.4.302.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.4.302
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1301_linux-4.4.302.patch b/1301_linux-4.4.302.patch
new file mode 100644
index 00000000..a83ed321
--- /dev/null
+++ b/1301_linux-4.4.302.patch
@@ -0,0 +1,884 @@
+diff --git a/Makefile b/Makefile
+index 3bf23154499e6..2a03be868d10b 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 4
+-SUBLEVEL = 301
++SUBLEVEL = 302
+ EXTRAVERSION =
+ NAME = Blurry Fish Butt
+ 
+diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
+index 44feac38ccfc2..7f53e40597f96 100644
+--- a/arch/s390/hypfs/hypfs_vm.c
++++ b/arch/s390/hypfs/hypfs_vm.c
+@@ -19,6 +19,7 @@
+ 
+ static char local_guest[] = "        ";
+ static char all_guests[] = "*       ";
++static char *all_groups = all_guests;
+ static char *guest_query;
+ 
+ struct diag2fc_data {
+@@ -61,10 +62,11 @@ static int diag2fc(int size, char* query, void *addr)
+ 
+       memcpy(parm_list.userid, query, NAME_LEN);
+       ASCEBC(parm_list.userid, NAME_LEN);
+-      parm_list.addr = (unsigned long) addr ;
++      memcpy(parm_list.aci_grp, all_groups, NAME_LEN);
++      ASCEBC(parm_list.aci_grp, NAME_LEN);
++      parm_list.addr = (unsigned long)addr;
+       parm_list.size = size;
+       parm_list.fmt = 0x02;
+-      memset(parm_list.aci_grp, 0x40, NAME_LEN);
+       rc = -1;
+ 
+       diag_stat_inc(DIAG_STAT_X2FC);
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index 8dce61ca934b2..910100257df93 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -4417,13 +4417,6 @@ static int emulator_write_std(struct x86_emulate_ctxt 
*ctxt, gva_t addr, void *v
+       if (!system && kvm_x86_ops->get_cpl(vcpu) == 3)
+               access |= PFERR_USER_MASK;
+ 
+-      /*
+-       * FIXME: this should call handle_emulation_failure if X86EMUL_IO_NEEDED
+-       * is returned, but our callers are not ready for that and they blindly
+-       * call kvm_inject_page_fault.  Ensure that they at least do not leak
+-       * uninitialized kernel stack memory into cr2 and error code.
+-       */
+-      memset(exception, 0, sizeof(*exception));
+       return kvm_write_guest_virt_helper(addr, val, bytes, vcpu,
+                                          access, exception);
+ }
+@@ -4431,6 +4424,13 @@ static int emulator_write_std(struct x86_emulate_ctxt 
*ctxt, gva_t addr, void *v
+ int kvm_write_guest_virt_system(struct kvm_vcpu *vcpu, gva_t addr, void *val,
+                               unsigned int bytes, struct x86_exception 
*exception)
+ {
++      /*
++       * FIXME: this should call handle_emulation_failure if X86EMUL_IO_NEEDED
++       * is returned, but our callers are not ready for that and they blindly
++       * call kvm_inject_page_fault.  Ensure that they at least do not leak
++       * uninitialized kernel stack memory into cr2 and error code.
++       */
++      memset(exception, 0, sizeof(*exception));
+       return kvm_write_guest_virt_helper(addr, val, bytes, vcpu,
+                                          PFERR_WRITE_MASK, exception);
+ }
+diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
+index 24d45fc7716c5..c9853626cec4e 100644
+--- a/drivers/gpu/drm/msm/msm_drv.c
++++ b/drivers/gpu/drm/msm/msm_drv.c
+@@ -286,7 +286,7 @@ static int msm_init_vram(struct drm_device *dev)
+               ret = of_address_to_resource(node, 0, &r);
+               if (ret)
+                       return ret;
+-              size = r.end - r.start;
++              size = r.end - r.start + 1;
+               DRM_INFO("using VRAM carveout: %lx@%pa\n", size, &r.start);
+       } else
+ #endif
+diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
+index 8e1bf9ed8efff..c8baa06773df8 100644
+--- a/drivers/gpu/drm/radeon/ci_dpm.c
++++ b/drivers/gpu/drm/radeon/ci_dpm.c
+@@ -776,12 +776,6 @@ bool ci_dpm_vblank_too_short(struct radeon_device *rdev)
+       u32 vblank_time = r600_dpm_get_vblank_time(rdev);
+       u32 switch_limit = pi->mem_gddr5 ? 450 : 300;
+ 
+-      /* disable mclk switching if the refresh is >120Hz, even if the
+-        * blanking period would allow it
+-        */
+-      if (r600_dpm_get_vrefresh(rdev) > 120)
+-              return true;
+-
+       /* disable mclk switching if the refresh is >120Hz, even if the
+         * blanking period would allow it
+         */
+diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
+index 420f341272621..6f6f173aca6f2 100644
+--- a/drivers/hwmon/lm90.c
++++ b/drivers/hwmon/lm90.c
+@@ -265,7 +265,7 @@ static const struct lm90_params lm90_params[] = {
+               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+                 | LM90_HAVE_BROKEN_ALERT,
+               .alert_alarms = 0x7c,
+-              .max_convrate = 8,
++              .max_convrate = 7,
+       },
+       [lm86] = {
+               .flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT,
+diff --git a/drivers/input/serio/i8042-x86ia64io.h 
b/drivers/input/serio/i8042-x86ia64io.h
+index 323b86b38b3a3..6cd2ae95e21ed 100644
+--- a/drivers/input/serio/i8042-x86ia64io.h
++++ b/drivers/input/serio/i8042-x86ia64io.h
+@@ -586,11 +586,6 @@ static const struct dmi_system_id 
i8042_dmi_forcemux_table[] __initconst = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"),
+               },
+-      }, {
+-              .matches = {
+-                      DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+-                      DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible 
Notebook */
+-              },
+       },
+       { }
+ };
+@@ -677,6 +672,12 @@ static const struct dmi_system_id 
i8042_dmi_noselftest_table[] = {
+                       DMI_MATCH(DMI_PRODUCT_NAME, "Z450LA"),
+               },
+       },
++      {
++              .matches = {
++                      DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
++                      DMI_MATCH(DMI_CHASSIS_TYPE, "31"), /* Convertible 
Notebook */
++              },
++      },
+       { }
+ };
+ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
+diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
+index 546cd995ab294..c3befb3f5dcda 100644
+--- a/drivers/media/i2c/tc358743.c
++++ b/drivers/media/i2c/tc358743.c
+@@ -241,7 +241,7 @@ static void i2c_wr16(struct v4l2_subdev *sd, u16 reg, u16 
val)
+ 
+ static void i2c_wr16_and_or(struct v4l2_subdev *sd, u16 reg, u16 mask, u16 
val)
+ {
+-      i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 1) & mask) | val, 1);
++      i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 2) & mask) | val, 2);
+ }
+ 
+ static u32 i2c_rd32(struct v4l2_subdev *sd, u16 reg)
+diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
+index f7630cf581cd9..fd622021748f8 100644
+--- a/drivers/s390/scsi/zfcp_fc.c
++++ b/drivers/s390/scsi/zfcp_fc.c
+@@ -518,6 +518,8 @@ static void zfcp_fc_adisc_handler(void *data)
+               goto out;
+       }
+ 
++      /* re-init to undo drop from zfcp_fc_adisc() */
++      port->d_id = ntoh24(adisc_resp->adisc_port_id);
+       /* port is good, unblock rport without going through erp */
+       zfcp_scsi_schedule_rport_register(port);
+  out:
+@@ -531,6 +533,7 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
+       struct zfcp_fc_req *fc_req;
+       struct zfcp_adapter *adapter = port->adapter;
+       struct Scsi_Host *shost = adapter->scsi_host;
++      u32 d_id;
+       int ret;
+ 
+       fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_ATOMIC);
+@@ -555,7 +558,15 @@ static int zfcp_fc_adisc(struct zfcp_port *port)
+       fc_req->u.adisc.req.adisc_cmd = ELS_ADISC;
+       hton24(fc_req->u.adisc.req.adisc_port_id, fc_host_port_id(shost));
+ 
+-      ret = zfcp_fsf_send_els(adapter, port->d_id, &fc_req->ct_els,
++      d_id = port->d_id; /* remember as destination for send els below */
++      /*
++       * Force fresh GID_PN lookup on next port recovery.
++       * Must happen after request setup and before sending request,
++       * to prevent race with port->d_id re-init in zfcp_fc_adisc_handler().
++       */
++      port->d_id = 0;
++
++      ret = zfcp_fsf_send_els(adapter, d_id, &fc_req->ct_els,
+                               ZFCP_FC_CTELS_TMO);
+       if (ret)
+               kmem_cache_free(zfcp_fc_req_cache, fc_req);
+diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c 
b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+index 573aeec7a02b6..66f7f89aa0ee4 100644
+--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
++++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+@@ -79,7 +79,7 @@ static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
+ static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
+ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
+                                 struct device *parent, int npiv);
+-static void bnx2fc_destroy_work(struct work_struct *work);
++static void bnx2fc_port_destroy(struct fcoe_port *port);
+ 
+ static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
+ static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
+@@ -855,9 +855,6 @@ static void bnx2fc_indicate_netevent(void *context, 
unsigned long event,
+                               __bnx2fc_destroy(interface);
+               }
+               mutex_unlock(&bnx2fc_dev_lock);
+-
+-              /* Ensure ALL destroy work has been completed before return */
+-              flush_workqueue(bnx2fc_wq);
+               return;
+ 
+       default:
+@@ -1148,8 +1145,8 @@ static int bnx2fc_vport_destroy(struct fc_vport *vport)
+       mutex_unlock(&n_port->lp_mutex);
+       bnx2fc_free_vport(interface->hba, port->lport);
+       bnx2fc_port_shutdown(port->lport);
++      bnx2fc_port_destroy(port);
+       bnx2fc_interface_put(interface);
+-      queue_work(bnx2fc_wq, &port->destroy_work);
+       return 0;
+ }
+ 
+@@ -1457,7 +1454,6 @@ static struct fc_lport *bnx2fc_if_create(struct 
bnx2fc_interface *interface,
+       port->lport = lport;
+       port->priv = interface;
+       port->get_netdev = bnx2fc_netdev;
+-      INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
+ 
+       /* Configure fcoe_port */
+       rc = bnx2fc_lport_config(lport);
+@@ -1582,8 +1578,8 @@ static void __bnx2fc_destroy(struct bnx2fc_interface 
*interface)
+       bnx2fc_interface_cleanup(interface);
+       bnx2fc_stop(interface);
+       list_del(&interface->list);
++      bnx2fc_port_destroy(port);
+       bnx2fc_interface_put(interface);
+-      queue_work(bnx2fc_wq, &port->destroy_work);
+ }
+ 
+ /**
+@@ -1624,15 +1620,12 @@ netdev_err:
+       return rc;
+ }
+ 
+-static void bnx2fc_destroy_work(struct work_struct *work)
++static void bnx2fc_port_destroy(struct fcoe_port *port)
+ {
+-      struct fcoe_port *port;
+       struct fc_lport *lport;
+ 
+-      port = container_of(work, struct fcoe_port, destroy_work);
+       lport = port->lport;
+-
+-      BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
++      BNX2FC_HBA_DBG(lport, "Entered %s, destroying lport %p\n", __func__, 
lport);
+ 
+       bnx2fc_if_destroy(lport);
+ }
+@@ -2469,9 +2462,6 @@ static void bnx2fc_ulp_exit(struct cnic_dev *dev)
+                       __bnx2fc_destroy(interface);
+       mutex_unlock(&bnx2fc_dev_lock);
+ 
+-      /* Ensure ALL destroy work has been completed before return */
+-      flush_workqueue(bnx2fc_wq);
+-
+       bnx2fc_ulp_stop(hba);
+       /* unregister cnic device */
+       if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
+diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
+index 9b2beada2ff3b..d2ff11d524c02 100644
+--- a/drivers/tty/n_gsm.c
++++ b/drivers/tty/n_gsm.c
+@@ -329,6 +329,7 @@ static struct tty_driver *gsm_tty_driver;
+ #define GSM1_ESCAPE_BITS      0x20
+ #define XON                   0x11
+ #define XOFF                  0x13
++#define ISO_IEC_646_MASK      0x7F
+ 
+ static const struct tty_port_operations gsm_port_ops;
+ 
+@@ -547,7 +548,8 @@ static int gsm_stuff_frame(const u8 *input, u8 *output, 
int len)
+       int olen = 0;
+       while (len--) {
+               if (*input == GSM1_SOF || *input == GSM1_ESCAPE
+-                  || *input == XON || *input == XOFF) {
++                  || (*input & ISO_IEC_646_MASK) == XON
++                  || (*input & ISO_IEC_646_MASK) == XOFF) {
+                       *output++ = GSM1_ESCAPE;
+                       *output++ = *input++ ^ GSM1_ESCAPE_BITS;
+                       olen++;
+diff --git a/drivers/tty/serial/8250/8250_pci.c 
b/drivers/tty/serial/8250/8250_pci.c
+index db66e533319ea..43f15ac54f0d1 100644
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -5404,8 +5404,30 @@ static struct pci_device_id serial_pci_tbl[] = {
+       {       PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS400,
+               PCI_ANY_ID, PCI_ANY_ID, 0, 0,    /* 135a.0dc0 */
+               pbn_b2_4_115200 },
++      /* Brainboxes Devices */
+       /*
+-       * BrainBoxes UC-260
++      * Brainboxes UC-101
++      */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0BA1,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-235/246
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0AA1,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_1_115200 },
++      /*
++       * Brainboxes UC-257
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0861,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-260/271/701/756
+        */
+       {       PCI_VENDOR_ID_INTASHIELD, 0x0D21,
+               PCI_ANY_ID, PCI_ANY_ID,
+@@ -5413,7 +5435,81 @@ static struct pci_device_id serial_pci_tbl[] = {
+               pbn_b2_4_115200 },
+       {       PCI_VENDOR_ID_INTASHIELD, 0x0E34,
+               PCI_ANY_ID, PCI_ANY_ID,
+-               PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
++              PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
++              pbn_b2_4_115200 },
++      /*
++       * Brainboxes UC-268
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0841,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_4_115200 },
++      /*
++       * Brainboxes UC-275/279
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0881,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_8_115200 },
++      /*
++       * Brainboxes UC-302
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x08E1,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-310
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x08C1,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-313
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x08A3,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-320/324
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0A61,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_1_115200 },
++      /*
++       * Brainboxes UC-346
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0B02,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_4_115200 },
++      /*
++       * Brainboxes UC-357
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0A81,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0A83,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_2_115200 },
++      /*
++       * Brainboxes UC-368
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0C41,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
++              pbn_b2_4_115200 },
++      /*
++       * Brainboxes UC-420/431
++       */
++      {       PCI_VENDOR_ID_INTASHIELD, 0x0921,
++              PCI_ANY_ID, PCI_ANY_ID,
++              0, 0,
+               pbn_b2_4_115200 },
+       /*
+        * Perle PCI-RAS cards
+diff --git a/drivers/tty/serial/stm32-usart.c 
b/drivers/tty/serial/stm32-usart.c
+index f89d1f79be18f..83d3645ac2ef1 100644
+--- a/drivers/tty/serial/stm32-usart.c
++++ b/drivers/tty/serial/stm32-usart.c
+@@ -279,7 +279,7 @@ static void stm32_start_tx(struct uart_port *port)
+ {
+       struct circ_buf *xmit = &port->state->xmit;
+ 
+-      if (uart_circ_empty(xmit))
++      if (uart_circ_empty(xmit) && !port->x_char)
+               return;
+ 
+       stm32_set_bits(port, USART_CR1, USART_CR1_TXEIE | USART_CR1_TE);
+diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
+index 3e0c1ff3a688e..a6f1eda264dad 100644
+--- a/drivers/usb/core/hcd.c
++++ b/drivers/usb/core/hcd.c
+@@ -1642,6 +1642,13 @@ int usb_hcd_submit_urb (struct urb *urb, gfp_t 
mem_flags)
+               urb->hcpriv = NULL;
+               INIT_LIST_HEAD(&urb->urb_list);
+               atomic_dec(&urb->use_count);
++              /*
++               * Order the write of urb->use_count above before the read
++               * of urb->reject below.  Pairs with the memory barriers in
++               * usb_kill_urb() and usb_poison_urb().
++               */
++              smp_mb__after_atomic();
++
+               atomic_dec(&urb->dev->urbnum);
+               if (atomic_read(&urb->reject))
+                       wake_up(&usb_kill_urb_queue);
+@@ -1751,6 +1758,13 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
+ 
+       usb_anchor_resume_wakeups(anchor);
+       atomic_dec(&urb->use_count);
++      /*
++       * Order the write of urb->use_count above before the read
++       * of urb->reject below.  Pairs with the memory barriers in
++       * usb_kill_urb() and usb_poison_urb().
++       */
++      smp_mb__after_atomic();
++
+       if (unlikely(atomic_read(&urb->reject)))
+               wake_up(&usb_kill_urb_queue);
+       usb_put_urb(urb);
+diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
+index 8c4bfd42f785d..693f352b8e074 100644
+--- a/drivers/usb/core/urb.c
++++ b/drivers/usb/core/urb.c
+@@ -686,6 +686,12 @@ void usb_kill_urb(struct urb *urb)
+       if (!(urb && urb->dev && urb->ep))
+               return;
+       atomic_inc(&urb->reject);
++      /*
++       * Order the write of urb->reject above before the read
++       * of urb->use_count below.  Pairs with the barriers in
++       * __usb_hcd_giveback_urb() and usb_hcd_submit_urb().
++       */
++      smp_mb__after_atomic();
+ 
+       usb_hcd_unlink_urb(urb, -ENOENT);
+       wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0);
+@@ -727,6 +733,12 @@ void usb_poison_urb(struct urb *urb)
+       if (!urb)
+               return;
+       atomic_inc(&urb->reject);
++      /*
++       * Order the write of urb->reject above before the read
++       * of urb->use_count below.  Pairs with the barriers in
++       * __usb_hcd_giveback_urb() and usb_hcd_submit_urb().
++       */
++      smp_mb__after_atomic();
+ 
+       if (!urb->dev || !urb->ep)
+               return;
+diff --git a/drivers/usb/storage/unusual_devs.h 
b/drivers/usb/storage/unusual_devs.h
+index 52895c462d7d9..3357ceef0b013 100644
+--- a/drivers/usb/storage/unusual_devs.h
++++ b/drivers/usb/storage/unusual_devs.h
+@@ -2155,6 +2155,16 @@ UNUSUAL_DEV(  0x2027, 0xa001, 0x0000, 0x9999,
+               USB_SC_DEVICE, USB_PR_DEVICE, usb_stor_euscsi_init,
+               US_FL_SCM_MULT_TARG ),
+ 
++/*
++ * Reported by DocMAX <[email protected]>
++ * and Thomas Weißschuh <[email protected]>
++ */
++UNUSUAL_DEV( 0x2109, 0x0715, 0x9999, 0x9999,
++              "VIA Labs, Inc.",
++              "VL817 SATA Bridge",
++              USB_SC_DEVICE, USB_PR_DEVICE, NULL,
++              US_FL_IGNORE_UAS),
++
+ UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001,
+               "ST",
+               "2A",
+diff --git a/fs/udf/inode.c b/fs/udf/inode.c
+index 2c39c1c81196c..b709c51c9f9ec 100644
+--- a/fs/udf/inode.c
++++ b/fs/udf/inode.c
+@@ -260,10 +260,6 @@ int udf_expand_file_adinicb(struct inode *inode)
+       char *kaddr;
+       struct udf_inode_info *iinfo = UDF_I(inode);
+       int err;
+-      struct writeback_control udf_wbc = {
+-              .sync_mode = WB_SYNC_NONE,
+-              .nr_to_write = 1,
+-      };
+ 
+       WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex));
+       if (!iinfo->i_lenAlloc) {
+@@ -307,8 +303,10 @@ int udf_expand_file_adinicb(struct inode *inode)
+               iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
+       /* from now on we have normal address_space methods */
+       inode->i_data.a_ops = &udf_aops;
++      set_page_dirty(page);
++      unlock_page(page);
+       up_write(&iinfo->i_data_sem);
+-      err = inode->i_data.a_ops->writepage(page, &udf_wbc);
++      err = filemap_fdatawrite(inode->i_mapping);
+       if (err) {
+               /* Restore everything back so that we don't lose data... */
+               lock_page(page);
+@@ -320,6 +318,7 @@ int udf_expand_file_adinicb(struct inode *inode)
+               unlock_page(page);
+               iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
+               inode->i_data.a_ops = &udf_adinicb_aops;
++              iinfo->i_lenAlloc = inode->i_size;
+               up_write(&iinfo->i_data_sem);
+       }
+       page_cache_release(page);
+diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
+index 401a404b64b93..78864ffaf0d71 100644
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -2055,6 +2055,7 @@ struct packet_type {
+                                        struct net_device *);
+       bool                    (*id_match)(struct packet_type *ptype,
+                                           struct sock *sk);
++      struct net              *af_packet_net;
+       void                    *af_packet_priv;
+       struct list_head        list;
+ };
+diff --git a/include/net/ip.h b/include/net/ip.h
+index 5c9de851a9191..869fd7a136121 100644
+--- a/include/net/ip.h
++++ b/include/net/ip.h
+@@ -353,19 +353,18 @@ static inline void ip_select_ident_segs(struct net *net, 
struct sk_buff *skb,
+ {
+       struct iphdr *iph = ip_hdr(skb);
+ 
++      /* We had many attacks based on IPID, use the private
++       * generator as much as we can.
++       */
++      if (sk && inet_sk(sk)->inet_daddr) {
++              iph->id = htons(inet_sk(sk)->inet_id);
++              inet_sk(sk)->inet_id += segs;
++              return;
++      }
+       if ((iph->frag_off & htons(IP_DF)) && !skb->ignore_df) {
+-              /* This is only to work around buggy Windows95/2000
+-               * VJ compression implementations.  If the ID field
+-               * does not change, they drop every other packet in
+-               * a TCP stream using header compression.
+-               */
+-              if (sk && inet_sk(sk)->inet_daddr) {
+-                      iph->id = htons(inet_sk(sk)->inet_id);
+-                      inet_sk(sk)->inet_id += segs;
+-              } else {
+-                      iph->id = 0;
+-              }
++              iph->id = 0;
+       } else {
++              /* Unfortunately we need the big hammer to get a suitable IPID 
*/
+               __ip_select_ident(net, iph, segs);
+       }
+ }
+diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
+index 1896386e16bbe..78e354b1c593b 100644
+--- a/kernel/power/wakelock.c
++++ b/kernel/power/wakelock.c
+@@ -38,23 +38,19 @@ ssize_t pm_show_wakelocks(char *buf, bool show_active)
+ {
+       struct rb_node *node;
+       struct wakelock *wl;
+-      char *str = buf;
+-      char *end = buf + PAGE_SIZE;
++      int len = 0;
+ 
+       mutex_lock(&wakelocks_lock);
+ 
+       for (node = rb_first(&wakelocks_tree); node; node = rb_next(node)) {
+               wl = rb_entry(node, struct wakelock, node);
+               if (wl->ws.active == show_active)
+-                      str += scnprintf(str, end - str, "%s ", wl->name);
++                      len += sysfs_emit_at(buf, len, "%s ", wl->name);
+       }
+-      if (str > buf)
+-              str--;
+-
+-      str += scnprintf(str, end - str, "\n");
++      len += sysfs_emit_at(buf, len, "\n");
+ 
+       mutex_unlock(&wakelocks_lock);
+-      return (str - buf);
++      return len;
+ }
+ 
+ #if CONFIG_PM_WAKELOCKS_LIMIT > 0
+diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
+index 05ccd2bcd9e46..a557543ad29f3 100644
+--- a/net/bluetooth/hci_event.c
++++ b/net/bluetooth/hci_event.c
+@@ -4940,6 +4940,11 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, 
struct sk_buff *skb)
+               struct hci_ev_le_advertising_info *ev = ptr;
+               s8 rssi;
+ 
++              if (ptr > (void *)skb_tail_pointer(skb) - sizeof(*ev)) {
++                      bt_dev_err(hdev, "Malicious advertising data.");
++                      break;
++              }
++
+               if (ev->length <= HCI_MAX_AD_LENGTH &&
+                   ev->data + ev->length <= skb_tail_pointer(skb)) {
+                       rssi = ev->data[ev->length];
+@@ -4951,11 +4956,6 @@ static void hci_le_adv_report_evt(struct hci_dev *hdev, 
struct sk_buff *skb)
+               }
+ 
+               ptr += sizeof(*ev) + ev->length + 1;
+-
+-              if (ptr > (void *) skb_tail_pointer(skb) - sizeof(*ev)) {
+-                      bt_dev_err(hdev, "Malicious advertising data. Stopping 
processing");
+-                      break;
+-              }
+       }
+ 
+       hci_dev_unlock(hdev);
+diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
+index 4a95c89d85065..621329cb668aa 100644
+--- a/net/bluetooth/mgmt.c
++++ b/net/bluetooth/mgmt.c
+@@ -2285,10 +2285,6 @@ static int set_link_security(struct sock *sk, struct 
hci_dev *hdev, void *data,
+ 
+       BT_DBG("request for %s", hdev->name);
+ 
+-      if (!IS_ENABLED(CONFIG_BT_HS))
+-              return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+-                                     MGMT_STATUS_NOT_SUPPORTED);
+-
+       status = mgmt_bredr_support(hdev);
+       if (status)
+               return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
+@@ -2438,6 +2434,10 @@ static int set_hs(struct sock *sk, struct hci_dev 
*hdev, void *data, u16 len)
+ 
+       BT_DBG("request for %s", hdev->name);
+ 
++      if (!IS_ENABLED(CONFIG_BT_HS))
++              return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
++                                     MGMT_STATUS_NOT_SUPPORTED);
++
+       status = mgmt_bredr_support(hdev);
+       if (status)
+               return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
+diff --git a/net/can/bcm.c b/net/can/bcm.c
+index 3e131dc5f0e52..549ee0de456f0 100644
+--- a/net/can/bcm.c
++++ b/net/can/bcm.c
+@@ -737,21 +737,21 @@ static struct bcm_op *bcm_find_op(struct list_head *ops, 
canid_t can_id,
+ static void bcm_remove_op(struct bcm_op *op)
+ {
+       if (op->tsklet.func) {
+-              while (test_bit(TASKLET_STATE_SCHED, &op->tsklet.state) ||
+-                     test_bit(TASKLET_STATE_RUN, &op->tsklet.state) ||
+-                     hrtimer_active(&op->timer)) {
+-                      hrtimer_cancel(&op->timer);
++              do {
+                       tasklet_kill(&op->tsklet);
+-              }
++                      hrtimer_cancel(&op->timer);
++              } while (test_bit(TASKLET_STATE_SCHED, &op->tsklet.state) ||
++                       test_bit(TASKLET_STATE_RUN, &op->tsklet.state) ||
++                       hrtimer_active(&op->timer));
+       }
+ 
+       if (op->thrtsklet.func) {
+-              while (test_bit(TASKLET_STATE_SCHED, &op->thrtsklet.state) ||
+-                     test_bit(TASKLET_STATE_RUN, &op->thrtsklet.state) ||
+-                     hrtimer_active(&op->thrtimer)) {
+-                      hrtimer_cancel(&op->thrtimer);
++              do {
+                       tasklet_kill(&op->thrtsklet);
+-              }
++                      hrtimer_cancel(&op->thrtimer);
++              } while (test_bit(TASKLET_STATE_SCHED, &op->thrtsklet.state) ||
++                       test_bit(TASKLET_STATE_RUN, &op->thrtsklet.state) ||
++                       hrtimer_active(&op->thrtimer));
+       }
+ 
+       if ((op->frames) && (op->frames != &op->sframe))
+diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
+index 2bf83299600a4..ef7170adee846 100644
+--- a/net/core/net-procfs.c
++++ b/net/core/net-procfs.c
+@@ -207,12 +207,23 @@ static const struct file_operations softnet_seq_fops = {
+       .release = seq_release,
+ };
+ 
+-static void *ptype_get_idx(loff_t pos)
++static void *ptype_get_idx(struct seq_file *seq, loff_t pos)
+ {
++      struct list_head *ptype_list = NULL;
+       struct packet_type *pt = NULL;
++      struct net_device *dev;
+       loff_t i = 0;
+       int t;
+ 
++      for_each_netdev_rcu(seq_file_net(seq), dev) {
++              ptype_list = &dev->ptype_all;
++              list_for_each_entry_rcu(pt, ptype_list, list) {
++                      if (i == pos)
++                              return pt;
++                      ++i;
++              }
++      }
++
+       list_for_each_entry_rcu(pt, &ptype_all, list) {
+               if (i == pos)
+                       return pt;
+@@ -233,22 +244,40 @@ static void *ptype_seq_start(struct seq_file *seq, 
loff_t *pos)
+       __acquires(RCU)
+ {
+       rcu_read_lock();
+-      return *pos ? ptype_get_idx(*pos - 1) : SEQ_START_TOKEN;
++      return *pos ? ptype_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
+ }
+ 
+ static void *ptype_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+ {
++      struct net_device *dev;
+       struct packet_type *pt;
+       struct list_head *nxt;
+       int hash;
+ 
+       ++*pos;
+       if (v == SEQ_START_TOKEN)
+-              return ptype_get_idx(0);
++              return ptype_get_idx(seq, 0);
+ 
+       pt = v;
+       nxt = pt->list.next;
++      if (pt->dev) {
++              if (nxt != &pt->dev->ptype_all)
++                      goto found;
++
++              dev = pt->dev;
++              for_each_netdev_continue_rcu(seq_file_net(seq), dev) {
++                      if (!list_empty(&dev->ptype_all)) {
++                              nxt = dev->ptype_all.next;
++                              goto found;
++                      }
++              }
++
++              nxt = ptype_all.next;
++              goto ptype_all;
++      }
++
+       if (pt->type == htons(ETH_P_ALL)) {
++ptype_all:
+               if (nxt != &ptype_all)
+                       goto found;
+               hash = 0;
+@@ -277,7 +306,8 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
+ 
+       if (v == SEQ_START_TOKEN)
+               seq_puts(seq, "Type Device      Function\n");
+-      else if (pt->dev == NULL || dev_net(pt->dev) == seq_file_net(seq)) {
++      else if ((!pt->af_packet_net || net_eq(pt->af_packet_net, 
seq_file_net(seq))) &&
++               (!pt->dev || net_eq(dev_net(pt->dev), seq_file_net(seq)))) {
+               if (pt->type == htons(ETH_P_ALL))
+                       seq_puts(seq, "ALL ");
+               else
+diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
+index 477540b3d3207..efd4410a73587 100644
+--- a/net/ipv4/ip_output.c
++++ b/net/ipv4/ip_output.c
+@@ -155,12 +155,19 @@ int ip_build_and_send_pkt(struct sk_buff *skb, const 
struct sock *sk,
+       iph->daddr    = (opt && opt->opt.srr ? opt->opt.faddr : daddr);
+       iph->saddr    = saddr;
+       iph->protocol = sk->sk_protocol;
+-      if (ip_dont_fragment(sk, &rt->dst)) {
++      /* Do not bother generating IPID for small packets (eg SYNACK) */
++      if (skb->len <= IPV4_MIN_MTU || ip_dont_fragment(sk, &rt->dst)) {
+               iph->frag_off = htons(IP_DF);
+               iph->id = 0;
+       } else {
+               iph->frag_off = 0;
+-              __ip_select_ident(net, iph, 1);
++              /* TCP packets here are SYNACK with fat IPv4/TCP options.
++               * Avoid using the hashed IP ident generator.
++               */
++              if (sk->sk_protocol == IPPROTO_TCP)
++                      iph->id = (__force __be16)prandom_u32();
++              else
++                      __ip_select_ident(net, iph, 1);
+       }
+ 
+       if (opt && opt->opt.optlen) {
+diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
+index 24ce13a796654..65dbe1784d021 100644
+--- a/net/ipv4/raw.c
++++ b/net/ipv4/raw.c
+@@ -709,6 +709,7 @@ static int raw_bind(struct sock *sk, struct sockaddr 
*uaddr, int addr_len)
+       int ret = -EINVAL;
+       int chk_addr_ret;
+ 
++      lock_sock(sk);
+       if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
+               goto out;
+       chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
+@@ -721,7 +722,9 @@ static int raw_bind(struct sock *sk, struct sockaddr 
*uaddr, int addr_len)
+               inet->inet_saddr = 0;  /* Use device */
+       sk_dst_reset(sk);
+       ret = 0;
+-out:  return ret;
++out:
++      release_sock(sk);
++      return ret;
+ }
+ 
+ /*
+diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
+index 80f88df280d7a..d3811c7adaed9 100644
+--- a/net/ipv6/ip6_tunnel.c
++++ b/net/ipv6/ip6_tunnel.c
+@@ -917,12 +917,12 @@ int ip6_tnl_xmit_ctl(struct ip6_tnl *t,
+                       ldev = dev_get_by_index_rcu(net, p->link);
+ 
+               if (unlikely(!ipv6_chk_addr(net, laddr, ldev, 0)))
+-                      pr_warn("%s xmit: Local address not yet configured!\n",
+-                              p->name);
++                      pr_warn_ratelimited("%s xmit: Local address not yet 
configured!\n",
++                                          p->name);
+               else if (!ipv6_addr_is_multicast(raddr) &&
+                        unlikely(ipv6_chk_addr(net, raddr, NULL, 0)))
+-                      pr_warn("%s xmit: Routing loop! Remote address found on 
this node!\n",
+-                              p->name);
++                      pr_warn_ratelimited("%s xmit: Routing loop! Remote 
address found on this node!\n",
++                                          p->name);
+               else
+                       ret = 1;
+               rcu_read_unlock();
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index eac6f7eea7b51..9208bc1793028 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -1709,6 +1709,7 @@ static int fanout_add(struct sock *sk, u16 id, u16 
type_flags)
+               match->prot_hook.dev = po->prot_hook.dev;
+               match->prot_hook.func = packet_rcv_fanout;
+               match->prot_hook.af_packet_priv = match;
++              match->prot_hook.af_packet_net = read_pnet(&match->net);
+               match->prot_hook.id_match = match_fanout_group;
+               list_add(&match->list, &fanout_list);
+       }
+@@ -3167,6 +3168,7 @@ static int packet_create(struct net *net, struct socket 
*sock, int protocol,
+               po->prot_hook.func = packet_rcv_spkt;
+ 
+       po->prot_hook.af_packet_priv = sk;
++      po->prot_hook.af_packet_net = sock_net(sk);
+ 
+       if (proto) {
+               po->prot_hook.type = proto;

Reply via email to