--- /dev/null
+From a1480dcc3c706e309a88884723446f2e84fedd5b Mon Sep 17 00:00:00 2001
+From: Andy Lutomirski <luto@amacapital.net>
+Date: Wed, 8 Oct 2014 12:32:47 -0700
+Subject: fs: Add a missing permission check to do_umount
+
+From: Andy Lutomirski <luto@amacapital.net>
+
+commit a1480dcc3c706e309a88884723446f2e84fedd5b upstream.
+
+Accessing do_remount_sb should require global CAP_SYS_ADMIN, but
+only one of the two call sites was appropriately protected.
+
+Fixes CVE-2014-7975.
+
+Signed-off-by: Andy Lutomirski <luto@amacapital.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/namespace.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/fs/namespace.c
++++ b/fs/namespace.c
+@@ -1374,6 +1374,8 @@ static int do_umount(struct mount *mnt,
+ * Special case for "unmounting" root ...
+ * we just try to remount it readonly.
+ */
++ if (!capable(CAP_SYS_ADMIN))
++ return -EPERM;
+ down_write(&sb->s_umount);
+ if (!(sb->s_flags & MS_RDONLY))
+ retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
--- /dev/null
+From bb048713bba3ead39f6112910906d9fe3f88ede7 Mon Sep 17 00:00:00 2001
+From: Josef Ahmad <josef.ahmad@intel.com>
+Date: Tue, 2 Sep 2014 13:45:20 +0300
+Subject: pci_ids: Add support for Intel Quark ILB
+
+From: Josef Ahmad <josef.ahmad@intel.com>
+
+commit bb048713bba3ead39f6112910906d9fe3f88ede7 upstream.
+
+This patch adds the PCI id for Intel Quark ILB.
+It will be used for GPIO and Multifunction device driver.
+
+Signed-off-by: Josef Ahmad <josef.ahmad@intel.com>
+Acked-by: Bjorn Helgaas <bhelgaas@google.com>
+Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Signed-off-by: Lee Jones <lee.jones@linaro.org>
+Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ include/linux/pci_ids.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/include/linux/pci_ids.h
++++ b/include/linux/pci_ids.h
+@@ -2555,6 +2555,7 @@
+ #define PCI_DEVICE_ID_INTEL_MFD_EMMC0 0x0823
+ #define PCI_DEVICE_ID_INTEL_MFD_EMMC1 0x0824
+ #define PCI_DEVICE_ID_INTEL_MRST_SD2 0x084F
++#define PCI_DEVICE_ID_INTEL_QUARK_X1000_ILB 0x095E
+ #define PCI_DEVICE_ID_INTEL_I960 0x0960
+ #define PCI_DEVICE_ID_INTEL_I960RM 0x0962
+ #define PCI_DEVICE_ID_INTEL_CENTERTON_ILB 0x0c60
--- /dev/null
+From a68df7066a6f974db6069e0b93c498775660a114 Mon Sep 17 00:00:00 2001
+From: Bryan O'Donoghue <bryan.odonoghue@intel.com>
+Date: Mon, 4 Aug 2014 10:22:54 -0700
+Subject: usb: pch_udc: usb gadget device support for Intel Quark X1000
+
+From: Bryan O'Donoghue <bryan.odonoghue@intel.com>
+
+commit a68df7066a6f974db6069e0b93c498775660a114 upstream.
+
+This patch is to enable the USB gadget device for Intel Quark X1000
+
+Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@intel.com>
+Signed-off-by: Bing Niu <bing.niu@intel.com>
+Signed-off-by: Alvin (Weike) Chen <alvin.chen@intel.com>
+Signed-off-by: Felipe Balbi <balbi@ti.com>
+Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/usb/gadget/Kconfig | 3 ++-
+ drivers/usb/gadget/pch_udc.c | 22 +++++++++++++++++++---
+ 2 files changed, 21 insertions(+), 4 deletions(-)
+
+--- a/drivers/usb/gadget/Kconfig
++++ b/drivers/usb/gadget/Kconfig
+@@ -438,7 +438,7 @@ config USB_GOKU
+ gadget drivers to also be dynamically linked.
+
+ config USB_EG20T
+- tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC"
++ tristate "Intel QUARK X1000/EG20T PCH/LAPIS Semiconductor IOH(ML7213/ML7831) UDC"
+ depends on PCI
+ help
+ This is a USB device driver for EG20T PCH.
+@@ -459,6 +459,7 @@ config USB_EG20T
+ ML7213/ML7831 is companion chip for Intel Atom E6xx series.
+ ML7213/ML7831 is completely compatible for Intel EG20T PCH.
+
++ This driver can be used with Intel's Quark X1000 SOC platform
+ #
+ # LAST -- dummy/emulated controller
+ #
+--- a/drivers/usb/gadget/pch_udc.c
++++ b/drivers/usb/gadget/pch_udc.c
+@@ -343,6 +343,7 @@ struct pch_vbus_gpio_data {
+ * @setup_data: Received setup data
+ * @phys_addr: of device memory
+ * @base_addr: for mapped device memory
++ * @bar: Indicates which PCI BAR for USB regs
+ * @irq: IRQ line for the device
+ * @cfg_data: current cfg, intf, and alt in use
+ * @vbus_gpio: GPIO informaton for detecting VBUS
+@@ -370,14 +371,17 @@ struct pch_udc_dev {
+ struct usb_ctrlrequest setup_data;
+ unsigned long phys_addr;
+ void __iomem *base_addr;
++ unsigned bar;
+ unsigned irq;
+ struct pch_udc_cfg_data cfg_data;
+ struct pch_vbus_gpio_data vbus_gpio;
+ };
+ #define to_pch_udc(g) (container_of((g), struct pch_udc_dev, gadget))
+
++#define PCH_UDC_PCI_BAR_QUARK_X1000 0
+ #define PCH_UDC_PCI_BAR 1
+ #define PCI_DEVICE_ID_INTEL_EG20T_UDC 0x8808
++#define PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC 0x0939
+ #define PCI_VENDOR_ID_ROHM 0x10DB
+ #define PCI_DEVICE_ID_ML7213_IOH_UDC 0x801D
+ #define PCI_DEVICE_ID_ML7831_IOH_UDC 0x8808
+@@ -3076,7 +3080,7 @@ static void pch_udc_remove(struct pci_de
+ iounmap(dev->base_addr);
+ if (dev->mem_region)
+ release_mem_region(dev->phys_addr,
+- pci_resource_len(pdev, PCH_UDC_PCI_BAR));
++ pci_resource_len(pdev, dev->bar));
+ if (dev->active)
+ pci_disable_device(pdev);
+ kfree(dev);
+@@ -3144,9 +3148,15 @@ static int pch_udc_probe(struct pci_dev
+ dev->active = 1;
+ pci_set_drvdata(pdev, dev);
+
++ /* Determine BAR based on PCI ID */
++ if (id->device == PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC)
++ dev->bar = PCH_UDC_PCI_BAR_QUARK_X1000;
++ else
++ dev->bar = PCH_UDC_PCI_BAR;
++
+ /* PCI resource allocation */
+- resource = pci_resource_start(pdev, 1);
+- len = pci_resource_len(pdev, 1);
++ resource = pci_resource_start(pdev, dev->bar);
++ len = pci_resource_len(pdev, dev->bar);
+
+ if (!request_mem_region(resource, len, KBUILD_MODNAME)) {
+ dev_err(&pdev->dev, "%s: pci device used already\n", __func__);
+@@ -3212,6 +3222,12 @@ finished:
+
+ static const struct pci_device_id pch_udc_pcidev_id[] = {
+ {
++ PCI_DEVICE(PCI_VENDOR_ID_INTEL,
++ PCI_DEVICE_ID_INTEL_QUARK_X1000_UDC),
++ .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
++ .class_mask = 0xffffffff,
++ },
++ {
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EG20T_UDC),
+ .class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe,
+ .class_mask = 0xffffffff,
projects / thirdparty / kernel / stable-queue.git / commitdiff
