From a5ec4bf8d562bf3a398f319d1519615b5275e2bc Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 5 Aug 2016 15:37:39 +0200 Subject: [PATCH 01/36] x86/mm: Disable preemption during CR3 read+write MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 5cf0791da5c162ebc14b01eb01631cfa7ed4fa6e upstream. There's a subtle preemption race on UP kernels: Usually current->mm (and therefore mm->pgd) stays the same during the lifetime of a task so it does not matter if a task gets preempted during the read and write of the CR3. But then, there is this scenario on x86-UP: TaskA is in do_exit() and exit_mm() sets current->mm = NULL followed by: -> mmput() -> exit_mmap() -> tlb_finish_mmu() -> tlb_flush_mmu() -> tlb_flush_mmu_tlbonly() -> tlb_flush() -> flush_tlb_mm_range() -> __flush_tlb_up() -> __flush_tlb() -> __native_flush_tlb() At this point current->mm is NULL but current->active_mm still points to the "old" mm. Let's preempt taskA _after_ native_read_cr3() by taskB. TaskB has its own mm so CR3 has changed. Now preempt back to taskA. TaskA has no ->mm set so it borrows taskB's mm and so CR3 remains unchanged. Once taskA gets active it continues where it was interrupted and that means it writes its old CR3 value back. Everything is fine because userland won't need its memory anymore. Now the fun part: Let's preempt taskA one more time and get back to taskB. This time switch_mm() won't do a thing because oldmm (->active_mm) is the same as mm (as per context_switch()). So we remain with a bad CR3 / PGD and return to userland. The next thing that happens is handle_mm_fault() with an address for the execution of its code in userland. handle_mm_fault() realizes that it has a PTE with proper rights so it returns doing nothing. But the CPU looks at the wrong PGD and insists that something is wrong and faults again. And again. And one more time… This pagefault circle continues until the scheduler gets tired of it and puts another task on the CPU. It gets little difficult if the task is a RT task with a high priority. The system will either freeze or it gets fixed by the software watchdog thread which usually runs at RT-max prio. But waiting for the watchdog will increase the latency of the RT task which is no good. Fix this by disabling preemption across the critical code section. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Peter Zijlstra (Intel) Acked-by: Rik van Riel Acked-by: Andy Lutomirski Cc: Borislav Petkov Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Mel Gorman Cc: Peter Zijlstra Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1470404259-26290-1-git-send-email-bigeasy@linutronix.de [ Prettified the changelog. ] Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- arch/x86/include/asm/tlbflush.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 04905bfc508b99..5e4b0cc54e4337 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -17,7 +17,14 @@ static inline void __native_flush_tlb(void) { + /* + * If current->mm == NULL then we borrow a mm which may change during a + * task switch and therefore we must not be preempted while we write CR3 + * back: + */ + preempt_disable(); native_write_cr3(native_read_cr3()); + preempt_enable(); } static inline void __native_flush_tlb_global_irq_disabled(void) From 7b01567ac9af394c0640856701623270a7019d76 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Mon, 25 Jul 2016 16:59:52 +0100 Subject: [PATCH 02/36] arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO commit 3146bc64d12377a74dbda12b96ea32da3774ae07 upstream. AT_VECTOR_SIZE_ARCH should be defined with the maximum number of NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined for arm64 at all even though ARCH_DLINFO will contain one NEW_AUX_ENT for the VDSO address. This shouldn't be a problem as AT_VECTOR_SIZE_BASE includes space for AT_BASE_PLATFORM which arm64 doesn't use, but lets define it now and add the comment above ARCH_DLINFO as found in several other architectures to remind future modifiers of ARCH_DLINFO to keep AT_VECTOR_SIZE_ARCH up to date. Fixes: f668cd1673aa ("arm64: ELF definitions") Signed-off-by: James Hogan Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Will Deacon Signed-off-by: Greg Kroah-Hartman --- arch/arm64/include/asm/elf.h | 1 + arch/arm64/include/uapi/asm/auxvec.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h index 01d3aab64b79f3..cc0e347379b77c 100644 --- a/arch/arm64/include/asm/elf.h +++ b/arch/arm64/include/asm/elf.h @@ -137,6 +137,7 @@ extern unsigned long randomize_et_dyn(unsigned long base); #define SET_PERSONALITY(ex) clear_thread_flag(TIF_32BIT); +/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ #define ARCH_DLINFO \ do { \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ diff --git a/arch/arm64/include/uapi/asm/auxvec.h b/arch/arm64/include/uapi/asm/auxvec.h index 22d6d8885854da..4cf0c17787a84a 100644 --- a/arch/arm64/include/uapi/asm/auxvec.h +++ b/arch/arm64/include/uapi/asm/auxvec.h @@ -19,4 +19,6 @@ /* vDSO location */ #define AT_SYSINFO_EHDR 33 +#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */ + #endif From b021a05497ced6dac327afe3245d4002245767bf Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sat, 20 Aug 2016 11:51:38 +0200 Subject: [PATCH 03/36] parisc: Fix order of EREFUSED define in errno.h commit 3eb53b20d7bd1374598cfb1feaa081fcac0e76cd upstream. When building gccgo in userspace, errno.h gets parsed and the go include file sysinfo.go is generated. Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED is defined later on in errno.h, this leads to go complaining that EREFUSED isn't defined yet. Fix this trivial problem by moving the define of EREFUSED down after ECONNREFUSED in errno.h (and clean up the indenting while touching this line). Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman --- arch/parisc/include/uapi/asm/errno.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h index c0ae62520d1575..274d5bc6ecce4a 100644 --- a/arch/parisc/include/uapi/asm/errno.h +++ b/arch/parisc/include/uapi/asm/errno.h @@ -97,10 +97,10 @@ #define ENOTCONN 235 /* Transport endpoint is not connected */ #define ESHUTDOWN 236 /* Cannot send after transport endpoint shutdown */ #define ETOOMANYREFS 237 /* Too many references: cannot splice */ -#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */ #define ETIMEDOUT 238 /* Connection timed out */ #define ECONNREFUSED 239 /* Connection refused */ -#define EREMOTERELEASE 240 /* Remote peer released connection */ +#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */ +#define EREMOTERELEASE 240 /* Remote peer released connection */ #define EHOSTDOWN 241 /* Host is down */ #define EHOSTUNREACH 242 /* No route to host */ From e64ccb6b60280689150c3ca6f1c41e69cca1966e Mon Sep 17 00:00:00 2001 From: "Jason S. McMullan" Date: Wed, 30 Sep 2015 15:35:05 +0900 Subject: [PATCH 04/36] PCI: Support PCIe devices with short cfg_size commit c20aecf6963d1273d8f6d61c042b4845441ca592 upstream. If a device quirk modifies the pci_dev->cfg_size to be less than PCI_CFG_SPACE_EXP_SIZE (4096), but greater than PCI_CFG_SPACE_SIZE (256), the PCI sysfs interface truncates the readable size to PCI_CFG_SPACE_SIZE. Allow sysfs access to config space up to cfg_size, even if the device doesn't support the entire 4096-byte PCIe config space. Note that pci_read_config() and pci_write_config() limit access to dev->cfg_size even though pcie_config_attr contains 4096 (the maximum size). Signed-off-by: Jason S. McMullan [simon: edited changelog] Signed-off-by: Simon Horman [bhelgaas: more changelog edits] Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-sysfs.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index a943c6c0f20642..3f29cf979c091d 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -1349,10 +1349,10 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) if (!sysfs_initialized) return -EACCES; - if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) - retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); - else + if (pdev->cfg_size > PCI_CFG_SPACE_SIZE) retval = sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr); + else + retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); if (retval) goto err; @@ -1409,10 +1409,10 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) err_resource_files: pci_remove_resource_files(pdev); err_config_file: - if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) - sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); - else + if (pdev->cfg_size > PCI_CFG_SPACE_SIZE) sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr); + else + sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); err: return retval; } @@ -1446,10 +1446,10 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev) pci_remove_capabilities_sysfs(pdev); - if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) - sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); - else + if (pdev->cfg_size > PCI_CFG_SPACE_SIZE) sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr); + else + sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); pci_remove_resource_files(pdev); From 9710cb2056abefa642f3806f361398c6b6fdb3d3 Mon Sep 17 00:00:00 2001 From: "Jason S. McMullan" Date: Wed, 30 Sep 2015 15:35:06 +0900 Subject: [PATCH 05/36] PCI: Add Netronome vendor and device IDs commit a755e169031dac9ebaed03302c4921687c271d62 upstream. Device IDs for the Netronome NFP3200, NFP3240, NFP6000, and NFP6000 SR-IOV devices. Signed-off-by: Jason S. McMullan [simon: edited changelog] Signed-off-by: Simon Horman Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- include/linux/pci_ids.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 057c1d8c77e527..cd429d02cb7f02 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2473,6 +2473,12 @@ #define PCI_DEVICE_ID_KORENIX_JETCARDF2 0x1700 #define PCI_DEVICE_ID_KORENIX_JETCARDF3 0x17ff +#define PCI_VENDOR_ID_NETRONOME 0x19ee +#define PCI_DEVICE_ID_NETRONOME_NFP3200 0x3200 +#define PCI_DEVICE_ID_NETRONOME_NFP3240 0x3240 +#define PCI_DEVICE_ID_NETRONOME_NFP6000 0x6000 +#define PCI_DEVICE_ID_NETRONOME_NFP6000_VF 0x6003 + #define PCI_VENDOR_ID_QMI 0x1a32 #define PCI_VENDOR_ID_AZWAVE 0x1a3b From 5fc03a51637ec4c4ddf4cdeeb98c1ff56b6553fb Mon Sep 17 00:00:00 2001 From: "Jason S. McMullan" Date: Wed, 30 Sep 2015 15:35:07 +0900 Subject: [PATCH 06/36] PCI: Limit config space size for Netronome NFP6000 family commit 9f33a2ae59f24452c1076749deb615bccd435ca9 upstream. The NFP6000 has an erratum where reading/writing to PCI config space addresses above 0x600 can cause the NFP to generate PCIe completion timeouts. Limit the NFP6000's config space size to 0x600 bytes. Signed-off-by: Jason S. McMullan [simon: edited changelog] Signed-off-by: Simon Horman Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 09208ac5941582..44bbb33cca3505 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -288,6 +288,17 @@ static void quirk_citrine(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine); +/* + * This chip can cause bus lockups if config addresses above 0x600 + * are read or written. + */ +static void quirk_nfp6000(struct pci_dev *dev) +{ + dev->cfg_size = 0x600; +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, quirk_nfp6000); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000_VF, quirk_nfp6000); + /* On IBM Crocodile ipr SAS adapters, expand BAR to system page size */ static void quirk_extend_bar_to_page(struct pci_dev *dev) { From 372fd0eb51db83c24544320d63df23aa06a6121c Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Fri, 11 Dec 2015 11:30:11 +0900 Subject: [PATCH 07/36] PCI: Add Netronome NFP4000 PF device ID commit 69874ec233871a62e1bc8c89e643993af93a8630 upstream. Add the device ID for the PF of the NFP4000. The device ID for the VF, 0x6003, is already present as PCI_DEVICE_ID_NETRONOME_NFP6000_VF. Signed-off-by: Simon Horman Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index cd429d02cb7f02..b3bf527d211bdb 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2476,6 +2476,7 @@ #define PCI_VENDOR_ID_NETRONOME 0x19ee #define PCI_DEVICE_ID_NETRONOME_NFP3200 0x3200 #define PCI_DEVICE_ID_NETRONOME_NFP3240 0x3240 +#define PCI_DEVICE_ID_NETRONOME_NFP4000 0x4000 #define PCI_DEVICE_ID_NETRONOME_NFP6000 0x6000 #define PCI_DEVICE_ID_NETRONOME_NFP6000_VF 0x6003 From 16807e337f11956eaf185019843143ba684a3672 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Fri, 11 Dec 2015 11:30:12 +0900 Subject: [PATCH 08/36] PCI: Limit config space size for Netronome NFP4000 commit c2e771b02792d222cbcd9617fe71482a64f52647 upstream. Like the NFP6000, the NFP4000 as an erratum where reading/writing to PCI config space addresses above 0x600 can cause the NFP to generate PCIe completion timeouts. Limit the NFP4000's PF's config space size to 0x600 bytes as is already done for the NFP6000. The NFP4000's VF is 0x6004 (PCI_DEVICE_ID_NETRONOME_NFP6000_VF), the same device ID as the NFP6000's VF. Thus, its config space is already limited by the existing use of quirk_nfp6000(). Signed-off-by: Simon Horman Signed-off-by: Bjorn Helgaas Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 44bbb33cca3505..ca53d484513ccc 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -296,6 +296,7 @@ static void quirk_nfp6000(struct pci_dev *dev) { dev->cfg_size = 0x600; } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, quirk_nfp6000); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, quirk_nfp6000); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000_VF, quirk_nfp6000); From baa329fab9da810d8e30a748aa22afa3b72e45e7 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 29 Jul 2016 03:17:58 +0300 Subject: [PATCH 09/36] usb: dwc3: gadget: increment request->actual once commit c7de573471832dff7d31f0c13b0f143d6f017799 upstream. When using SG lists, we would end up setting request->actual to: num_mapped_sgs * (request->length - count) Let's fix that up by incrementing request->actual only once. Reported-by: Brian E Rogers Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/gadget.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index a57ad1f52f790a..48fa53ba354bed 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1799,14 +1799,6 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, s_pkt = 1; } - /* - * We assume here we will always receive the entire data block - * which we should receive. Meaning, if we program RX to - * receive 4K but we receive only 2K, we assume that's all we - * should receive and we simply bounce the request back to the - * gadget driver for further processing. - */ - req->request.actual += req->request.length - count; if (s_pkt) return 1; if ((event->status & DEPEVT_STATUS_LST) && @@ -1826,6 +1818,7 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, struct dwc3_trb *trb; unsigned int slot; unsigned int i; + int count = 0; int ret; do { @@ -1842,6 +1835,8 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, slot++; slot %= DWC3_TRB_NUM; trb = &dep->trb_pool[slot]; + count += trb->size & DWC3_TRB_SIZE_MASK; + ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb, event, status); @@ -1849,6 +1844,14 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, break; }while (++i < req->request.num_mapped_sgs); + /* + * We assume here we will always receive the entire data block + * which we should receive. Meaning, if we program RX to + * receive 4K but we receive only 2K, we assume that's all we + * should receive and we simply bounce the request back to the + * gadget driver for further processing. + */ + req->request.actual += req->request.length - count; dwc3_gadget_giveback(dep, req, status); if (ret) From 59afff14d965d9323a2c5f1d66dd318328c9a0a4 Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Thu, 10 Dec 2015 09:59:25 +0200 Subject: [PATCH 10/36] usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices commit 8a1b2725a60d3267135c15e80984b4406054f650 upstream. Add a new USB_SPEED_SUPER_PLUS device speed, and make sure usb core can handle the new speed. In most cases the behaviour is the same as with USB_SPEED_SUPER SuperSpeed devices. In a few places we add a "Plus" string to inform the user of the new speed. Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 3 ++- drivers/usb/core/devices.c | 10 ++++++---- drivers/usb/core/hcd-pci.c | 2 +- drivers/usb/core/hcd.c | 6 +++--- drivers/usb/core/hub.c | 26 +++++++++++++++----------- drivers/usb/core/urb.c | 3 ++- drivers/usb/core/usb.h | 2 +- include/uapi/linux/usb/ch9.h | 1 + 8 files changed, 31 insertions(+), 22 deletions(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 12d14f91c4d382..7522254afd6f5a 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -192,6 +192,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, if (usb_endpoint_xfer_int(d)) { i = 1; switch (to_usb_device(ddev)->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: case USB_SPEED_HIGH: /* Many device manufacturers are using full-speed @@ -264,7 +265,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, } /* Parse a possible SuperSpeed endpoint companion descriptor */ - if (to_usb_device(ddev)->speed == USB_SPEED_SUPER) + if (to_usb_device(ddev)->speed >= USB_SPEED_SUPER) usb_parse_ss_endpoint_companion(ddev, cfgno, inum, asnum, endpoint, buffer, size); diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 2a3bbdf7eb9407..332ed277a06ceb 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -221,7 +221,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end, break; case USB_ENDPOINT_XFER_INT: type = "Int."; - if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER) + if (speed == USB_SPEED_HIGH || speed >= USB_SPEED_SUPER) interval = 1 << (desc->bInterval - 1); else interval = desc->bInterval; @@ -230,7 +230,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end, return start; } interval *= (speed == USB_SPEED_HIGH || - speed == USB_SPEED_SUPER) ? 125 : 1000; + speed >= USB_SPEED_SUPER) ? 125 : 1000; if (interval % 1000) unit = 'u'; else { @@ -322,7 +322,7 @@ static char *usb_dump_config_descriptor(char *start, char *end, if (start > end) return start; - if (speed == USB_SPEED_SUPER) + if (speed >= USB_SPEED_SUPER) mul = 8; else mul = 2; @@ -534,6 +534,8 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, speed = "480"; break; case USB_SPEED_SUPER: speed = "5000"; break; + case USB_SPEED_SUPER_PLUS: + speed = "10000"; break; default: speed = "??"; } @@ -553,7 +555,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, /* super/high speed reserves 80%, full/low reserves 90% */ if (usbdev->speed == USB_SPEED_HIGH || - usbdev->speed == USB_SPEED_SUPER) + usbdev->speed >= USB_SPEED_SUPER) max = 800; else max = FRAME_TIME_MAX_USECS_ALLOC; diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index ccdcc7063eee8b..a5ffceb5000776 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -207,7 +207,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) * The xHCI driver has its own irq management * make sure irq setup is not touched for xhci in generic hcd code */ - if ((driver->flags & HCD_MASK) != HCD_USB3) { + if ((driver->flags & HCD_MASK) < HCD_USB3) { if (!dev->irq) { dev_err(&dev->dev, "Found HC with no IRQ. Check BIOS/PCI %s setup!\n", diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index ee6c5562d296e1..2e6ec875b1b7fc 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1024,7 +1024,7 @@ static int register_root_hub(struct usb_hcd *hcd) dev_name(&usb_dev->dev), retval); return (retval < 0) ? retval : -EMSGSIZE; } - if (usb_dev->speed == USB_SPEED_SUPER) { + if (usb_dev->speed >= USB_SPEED_SUPER) { retval = usb_get_bos_descriptor(usb_dev); if (retval < 0) { mutex_unlock(&usb_bus_list_lock); @@ -2055,7 +2055,7 @@ int usb_alloc_streams(struct usb_interface *interface, hcd = bus_to_hcd(dev->bus); if (!hcd->driver->alloc_streams || !hcd->driver->free_streams) return -EINVAL; - if (dev->speed != USB_SPEED_SUPER) + if (dev->speed < USB_SPEED_SUPER) return -EINVAL; if (dev->state < USB_STATE_CONFIGURED) return -ENODEV; @@ -2093,7 +2093,7 @@ int usb_free_streams(struct usb_interface *interface, dev = interface_to_usbdev(interface); hcd = bus_to_hcd(dev->bus); - if (dev->speed != USB_SPEED_SUPER) + if (dev->speed < USB_SPEED_SUPER) return -EINVAL; /* Streams only apply to bulk endpoints. */ diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index f46ac929ef8a61..a5f77367386d95 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -297,7 +297,7 @@ static void usb_set_lpm_parameters(struct usb_device *udev) unsigned int hub_u1_del; unsigned int hub_u2_del; - if (!udev->lpm_capable || udev->speed != USB_SPEED_SUPER) + if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) return; hub = usb_hub_to_struct_hub(udev->parent); @@ -2559,7 +2559,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub) */ static bool use_new_scheme(struct usb_device *udev, int retry) { - if (udev->speed == USB_SPEED_SUPER) + if (udev->speed >= USB_SPEED_SUPER) return false; return USE_NEW_SCHEME(retry); @@ -3812,7 +3812,7 @@ int usb_disable_lpm(struct usb_device *udev) struct usb_hcd *hcd; if (!udev || !udev->parent || - udev->speed != USB_SPEED_SUPER || + udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) return 0; @@ -3868,7 +3868,7 @@ void usb_enable_lpm(struct usb_device *udev) struct usb_hcd *hcd; if (!udev || !udev->parent || - udev->speed != USB_SPEED_SUPER || + udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) return; @@ -4127,7 +4127,9 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, retval = -ENODEV; - if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) { + /* Don't allow speed changes at reset, except usb 3.0 to faster */ + if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && + !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { dev_dbg(&udev->dev, "device reset changed speed!\n"); goto fail; } @@ -4139,6 +4141,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, * reported as 0xff in the device descriptor). WUSB1.0[4.8.1]. */ switch (udev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: case USB_SPEED_WIRELESS: /* fixed at 512 */ udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); @@ -4165,7 +4168,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, else speed = usb_speed_string(udev->speed); - if (udev->speed != USB_SPEED_SUPER) + if (udev->speed < USB_SPEED_SUPER) dev_info(&udev->dev, "%s %s USB device number %d using %s\n", (udev->config) ? "reset" : "new", speed, @@ -4291,11 +4294,12 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, devnum, retval); goto fail; } - if (udev->speed == USB_SPEED_SUPER) { + if (udev->speed >= USB_SPEED_SUPER) { devnum = udev->devnum; dev_info(&udev->dev, - "%s SuperSpeed USB device number %d using %s\n", + "%s SuperSpeed%s USB device number %d using %s\n", (udev->config) ? "reset" : "new", + (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "", devnum, udev->bus->controller->driver->name); } @@ -4337,7 +4341,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, * got from those devices show they aren't superspeed devices. Warm * reset the port attached by the devices can fix them. */ - if ((udev->speed == USB_SPEED_SUPER) && + if ((udev->speed >= USB_SPEED_SUPER) && (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { dev_err(&udev->dev, "got a wrong device descriptor, " "warm reset device\n"); @@ -4348,7 +4352,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, } if (udev->descriptor.bMaxPacketSize0 == 0xff || - udev->speed == USB_SPEED_SUPER) + udev->speed >= USB_SPEED_SUPER) i = 512; else i = udev->descriptor.bMaxPacketSize0; @@ -4607,7 +4611,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, udev->level = hdev->level + 1; udev->wusb = hub_is_wusb(hub); - /* Only USB 3.0 devices are connected to SuperSpeed hubs. */ + /* Devices connected to SuperSpeed hubs are USB 3.0 or later */ if (hub_is_superspeed(hub->hdev)) udev->speed = USB_SPEED_SUPER; else diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 9ff665f1322feb..a47d904b3f87a5 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -402,7 +402,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) /* SuperSpeed isoc endpoints have up to 16 bursts of up to * 3 packets each */ - if (dev->speed == USB_SPEED_SUPER) { + if (dev->speed >= USB_SPEED_SUPER) { int burst = 1 + ep->ss_ep_comp.bMaxBurst; int mult = USB_SS_MULT(ep->ss_ep_comp.bmAttributes); max *= burst; @@ -499,6 +499,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) } /* too big? */ switch (dev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: /* units are 125us */ /* Handle up to 2^(16-1) microframes */ if (urb->interval > (1 << 15)) diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 0923add72b59e5..e9fad3d863a3b4 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -43,7 +43,7 @@ static inline unsigned usb_get_max_power(struct usb_device *udev, struct usb_host_config *c) { /* SuperSpeed power is in 8 mA units; others are in 2 mA units */ - unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2); + unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2); return c->desc.bMaxPower * mul; } diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h index aa33fd1b2d4f3a..bff03877a2c876 100644 --- a/include/uapi/linux/usb/ch9.h +++ b/include/uapi/linux/usb/ch9.h @@ -913,6 +913,7 @@ enum usb_device_speed { USB_SPEED_HIGH, /* usb 2.0 */ USB_SPEED_WIRELESS, /* wireless (usb 2.5) */ USB_SPEED_SUPER, /* usb 3.0 */ + USB_SPEED_SUPER_PLUS, /* usb 3.1 */ }; From 4d5447239fb1af7b8f06b6cff87aadd8df2a7d3d Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 1 Aug 2016 15:25:56 -0400 Subject: [PATCH 11/36] USB: validate wMaxPacketValue entries in endpoint descriptors commit aed9d65ac3278d4febd8665bd7db59ef53e825fe upstream. Erroneous or malicious endpoint descriptors may have non-zero bits in reserved positions, or out-of-bounds values. This patch helps prevent these from causing problems by bounds-checking the wMaxPacketValue entries in endpoint descriptors and capping the values at the maximum allowed. This issue was first discovered and tests were conducted by Jake Lamberson , an intern working for Rosie Hall. Signed-off-by: Alan Stern Reported-by: roswest Tested-by: roswest Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 66 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 63 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 7522254afd6f5a..95207d670f6cf5 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -143,6 +143,31 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno, } } +static const unsigned short low_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 8, + [USB_ENDPOINT_XFER_ISOC] = 0, + [USB_ENDPOINT_XFER_BULK] = 0, + [USB_ENDPOINT_XFER_INT] = 8, +}; +static const unsigned short full_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 64, + [USB_ENDPOINT_XFER_ISOC] = 1023, + [USB_ENDPOINT_XFER_BULK] = 64, + [USB_ENDPOINT_XFER_INT] = 64, +}; +static const unsigned short high_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 64, + [USB_ENDPOINT_XFER_ISOC] = 1024, + [USB_ENDPOINT_XFER_BULK] = 512, + [USB_ENDPOINT_XFER_INT] = 1023, +}; +static const unsigned short super_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 512, + [USB_ENDPOINT_XFER_ISOC] = 1024, + [USB_ENDPOINT_XFER_BULK] = 1024, + [USB_ENDPOINT_XFER_INT] = 1024, +}; + static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, int asnum, struct usb_host_interface *ifp, int num_ep, unsigned char *buffer, int size) @@ -151,6 +176,8 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, struct usb_endpoint_descriptor *d; struct usb_host_endpoint *endpoint; int n, i, j, retval; + unsigned int maxp; + const unsigned short *maxpacket_maxes; d = (struct usb_endpoint_descriptor *) buffer; buffer += d->bLength; @@ -247,6 +274,42 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, endpoint->desc.wMaxPacketSize = cpu_to_le16(8); } + /* Validate the wMaxPacketSize field */ + maxp = usb_endpoint_maxp(&endpoint->desc); + + /* Find the highest legal maxpacket size for this endpoint */ + i = 0; /* additional transactions per microframe */ + switch (to_usb_device(ddev)->speed) { + case USB_SPEED_LOW: + maxpacket_maxes = low_speed_maxpacket_maxes; + break; + case USB_SPEED_FULL: + maxpacket_maxes = full_speed_maxpacket_maxes; + break; + case USB_SPEED_HIGH: + /* Bits 12..11 are allowed only for HS periodic endpoints */ + if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) { + i = maxp & (BIT(12) | BIT(11)); + maxp &= ~i; + } + /* fallthrough */ + default: + maxpacket_maxes = high_speed_maxpacket_maxes; + break; + case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: + maxpacket_maxes = super_speed_maxpacket_maxes; + break; + } + j = maxpacket_maxes[usb_endpoint_type(&endpoint->desc)]; + + if (maxp > j) { + dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid maxpacket %d, setting to %d\n", + cfgno, inum, asnum, d->bEndpointAddress, maxp, j); + maxp = j; + endpoint->desc.wMaxPacketSize = cpu_to_le16(i | maxp); + } + /* * Some buggy high speed devices have bulk endpoints using * maxpacket sizes other than 512. High speed HCDs may not @@ -254,9 +317,6 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, */ if (to_usb_device(ddev)->speed == USB_SPEED_HIGH && usb_endpoint_xfer_bulk(d)) { - unsigned maxp; - - maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff; if (maxp != 512) dev_warn(ddev, "config %d interface %d altsetting %d " "bulk endpoint 0x%X has invalid maxpacket %d\n", From 0ede8e4636714add8b2dad1afa725a2fbf1a3798 Mon Sep 17 00:00:00 2001 From: Jim Lin Date: Tue, 16 Aug 2016 10:18:05 +0300 Subject: [PATCH 12/36] usb: xhci: Fix panic if disconnect commit 88716a93766b8f095cdef37a8e8f2c93aa233b21 upstream. After a device is disconnected, xhci_stop_device() will be invoked in xhci_bus_suspend(). Also the "disconnect" IRQ will have ISR to invoke xhci_free_virt_device() in this sequence. xhci_irq -> xhci_handle_event -> handle_cmd_completion -> xhci_handle_cmd_disable_slot -> xhci_free_virt_device If xhci->devs[slot_id] has been assigned to NULL in xhci_free_virt_device(), then virt_dev->eps[i].ring in xhci_stop_device() may point to an invlid address to cause kernel panic. virt_dev = xhci->devs[slot_id]; : if (virt_dev->eps[i].ring && virt_dev->eps[i].ring->dequeue) [] Unable to handle kernel paging request at virtual address 00001a68 [] pgd=ffffffc001430000 [] [00001a68] *pgd=000000013c807003, *pud=000000013c807003, *pmd=000000013c808003, *pte=0000000000000000 [] Internal error: Oops: 96000006 [#1] PREEMPT SMP [] CPU: 0 PID: 39 Comm: kworker/0:1 Tainted: G U [] Workqueue: pm pm_runtime_work [] task: ffffffc0bc0e0bc0 ti: ffffffc0bc0ec000 task.ti: ffffffc0bc0ec000 [] PC is at xhci_stop_device.constprop.11+0xb4/0x1a4 This issue is found when running with realtek ethernet device (0bda:8153). Signed-off-by: Jim Lin Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-hub.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 7f01f165e77bc0..69b28af70b7c81 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -276,6 +276,9 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) ret = 0; virt_dev = xhci->devs[slot_id]; + if (!virt_dev) + return -ENODEV; + cmd = xhci_alloc_command(xhci, false, true, GFP_NOIO); if (!cmd) { xhci_dbg(xhci, "Couldn't allocate command structure.\n"); From c7afd82c69616c08397a6e7ecd2e0477997a06b1 Mon Sep 17 00:00:00 2001 From: Alexey Klimov Date: Mon, 8 Aug 2016 02:34:46 +0100 Subject: [PATCH 13/36] USB: serial: fix memleak in driver-registration error path commit 647024a7df36014bbc4479d92d88e6b77c0afcf6 upstream. udriver struct allocated by kzalloc() will not be freed if usb_register() and next calls fail. This patch fixes this by adding one more step with kfree(udriver) in error path. Signed-off-by: Alexey Klimov Acked-by: Alan Stern Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/usb-serial.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 3d66e9c5a95d63..a5308a97f65e06 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1426,7 +1426,7 @@ int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[] rc = usb_register(udriver); if (rc) - return rc; + goto failed_usb_register; for (sd = serial_drivers; *sd; ++sd) { (*sd)->usb_driver = udriver; @@ -1444,6 +1444,8 @@ int usb_serial_register_drivers(struct usb_serial_driver *const serial_drivers[] while (sd-- > serial_drivers) usb_serial_deregister(*sd); usb_deregister(udriver); +failed_usb_register: + kfree(udriver); return rc; } EXPORT_SYMBOL_GPL(usb_serial_register_drivers); From ac5ada1b8549680ec9fe62d4f1475d1cabdaf5a2 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Sun, 24 Jul 2016 13:53:30 +0200 Subject: [PATCH 14/36] USB: serial: option: add D-Link DWM-156/A3 commit cf1b18030de29e4e5b0a57695ae5db4a89da0ff7 upstream. The device has four interfaces; the three serial ports ought to be handled by this driver: 00 Diagnostic interface serial port 01 NMEA device serial port 02 Mass storage (sd card) 03 Modem serial port The other product ids listed in the Windows driver are present already. Signed-off-by: Lubomir Rintel Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 006a2a721edff8..2950844b518a76 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1839,6 +1839,7 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */ { USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) }, /* OLICARD300 - MT6225 */ { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) }, { USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) }, From 2df861b79649b57f589d8b22473c1c5c115617c3 Mon Sep 17 00:00:00 2001 From: Daniele Palmas Date: Tue, 2 Aug 2016 11:29:25 +0200 Subject: [PATCH 15/36] USB: serial: option: add support for Telit LE920A4 commit 01d7956b58e644ea0d2e8d9340c5727a8fc39d70 upstream. This patch adds a set of compositions for Telit LE920A4. Compositions in short are: 0x1207: tty + tty 0x1208: tty + adb + tty + tty 0x1211: tty + adb + ecm 0x1212: tty + adb 0x1213: ecm + tty 0x1214: tty + adb + ecm + tty telit_le922_blacklist_usbcfg3 is reused for compositions 0x1211 and 0x1214 due to the same interfaces positions. Signed-off-by: Daniele Palmas Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 2950844b518a76..2bc16969296566 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -275,6 +275,12 @@ static void option_instat_callback(struct urb *urb); #define TELIT_PRODUCT_LE920 0x1200 #define TELIT_PRODUCT_LE910 0x1201 #define TELIT_PRODUCT_LE910_USBCFG4 0x1206 +#define TELIT_PRODUCT_LE920A4_1207 0x1207 +#define TELIT_PRODUCT_LE920A4_1208 0x1208 +#define TELIT_PRODUCT_LE920A4_1211 0x1211 +#define TELIT_PRODUCT_LE920A4_1212 0x1212 +#define TELIT_PRODUCT_LE920A4_1213 0x1213 +#define TELIT_PRODUCT_LE920A4_1214 0x1214 /* ZTE PRODUCTS */ #define ZTE_VENDOR_ID 0x19d2 @@ -636,6 +642,11 @@ static const struct option_blacklist_info telit_le920_blacklist = { .reserved = BIT(1) | BIT(5), }; +static const struct option_blacklist_info telit_le920a4_blacklist_1 = { + .sendsetup = BIT(0), + .reserved = BIT(1), +}; + static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = { .sendsetup = BIT(2), .reserved = BIT(0) | BIT(1) | BIT(3), @@ -1211,6 +1222,16 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920), .driver_info = (kernel_ulong_t)&telit_le920_blacklist }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1207) }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1208), + .driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1211), + .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1212), + .driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 }, + { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214), + .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf1_blacklist }, From 8e2f91d61bcdfbdfdd2655160292469fb9156916 Mon Sep 17 00:00:00 2001 From: "Sheng-Hui J. Chu" Date: Thu, 28 Jul 2016 17:01:45 -0400 Subject: [PATCH 16/36] USB: serial: ftdi_sio: add device ID for WICED USB UART dev board commit ae34d12cc1e212ffcd92e069030e54dae69c832f upstream. BCM20706V2_EVAL is a WICED dev board designed with FT2232H USB 2.0 UART/FIFO IC. To support BCM920706V2_EVAL dev board for WICED development on Linux. Add the VID(0a5c) and PID(6422) to ftdi_sio driver to allow loading ftdi_sio for this board. Signed-off-by: Sheng-Hui J. Chu Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index fb3a832d86e3bc..430f28edd370ce 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1021,6 +1021,7 @@ static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(ICPDAS_VID, ICPDAS_I7560U_PID) }, { USB_DEVICE(ICPDAS_VID, ICPDAS_I7561U_PID) }, { USB_DEVICE(ICPDAS_VID, ICPDAS_I7563U_PID) }, + { USB_DEVICE(WICED_VID, WICED_USB20706V2_PID) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 334bc600282ddc..6965de572c25c4 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -672,6 +672,12 @@ #define INTREPID_VALUECAN_PID 0x0601 #define INTREPID_NEOVI_PID 0x0701 +/* + * WICED USB UART + */ +#define WICED_VID 0x0A5C +#define WICED_USB20706V2_PID 0x6422 + /* * Definitions for ID TECH (www.idt-net.com) devices */ From 59317a7dfb8458fa7a0d6f31d08670921b2483bf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Robert=20Deli=C3=ABn?= Date: Thu, 28 Jul 2016 18:52:55 +0000 Subject: [PATCH 17/36] USB: serial: ftdi_sio: add PIDs for Ivium Technologies devices commit 6977495c06f7f47636a076ee5a0ca571279d9697 upstream. Ivium Technologies uses the FTDI VID with custom PIDs for their line of electrochemical interfaces and the PalmSens they developed for PalmSens BV. Signed-off-by: Robert Delien Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 2 ++ drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 430f28edd370ce..6103727cd060a5 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -661,6 +661,8 @@ static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_PALMSENS_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_IVIUM_XSTAT_PID) }, { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 6965de572c25c4..48db84f25cc9fc 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -405,6 +405,12 @@ #define FTDI_4N_GALAXY_DE_2_PID 0xF3C1 #define FTDI_4N_GALAXY_DE_3_PID 0xF3C2 +/* + * Ivium Technologies product IDs + */ +#define FTDI_PALMSENS_PID 0xf440 +#define FTDI_IVIUM_XSTAT_PID 0xf441 + /* * Linx Technologies product ids */ From f857dfa14d18cfa5e42aa657afad48df30c4dc2d Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Mon, 25 Jan 2016 15:30:44 +0200 Subject: [PATCH 18/36] xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices. commit 0caf6b33452112e5a1186c8c964e90310e49e6bd upstream. In most cases the devices with the speed set to USB_SPEED_SUPER_PLUS are handled like regular SuperSpeed devices. Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mem.c | 9 ++++++--- drivers/usb/host/xhci-ring.c | 3 ++- drivers/usb/host/xhci.c | 7 +++++-- 3 files changed, 13 insertions(+), 6 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index b39d217310feb8..831e289891813e 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -974,7 +974,7 @@ static u32 xhci_find_real_port_number(struct xhci_hcd *xhci, struct usb_device *top_dev; struct usb_hcd *hcd; - if (udev->speed == USB_SPEED_SUPER) + if (udev->speed >= USB_SPEED_SUPER) hcd = xhci->shared_hcd; else hcd = xhci->main_hcd; @@ -1009,6 +1009,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud /* 3) Only the control endpoint is valid - one endpoint context */ slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route); switch (udev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SS); max_packets = MAX_PACKET(512); @@ -1196,6 +1197,7 @@ static unsigned int xhci_get_endpoint_interval(struct usb_device *udev, } /* Fall through - SS and HS isoc/int have same decoding */ + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: if (usb_endpoint_xfer_int(&ep->desc) || usb_endpoint_xfer_isoc(&ep->desc)) { @@ -1236,7 +1238,7 @@ static unsigned int xhci_get_endpoint_interval(struct usb_device *udev, static u32 xhci_get_endpoint_mult(struct usb_device *udev, struct usb_host_endpoint *ep) { - if (udev->speed != USB_SPEED_SUPER || + if (udev->speed < USB_SPEED_SUPER || !usb_endpoint_xfer_isoc(&ep->desc)) return 0; return ep->ss_ep_comp.bmAttributes; @@ -1288,7 +1290,7 @@ static u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci, usb_endpoint_xfer_bulk(&ep->desc)) return 0; - if (udev->speed == USB_SPEED_SUPER) + if (udev->speed >= USB_SPEED_SUPER) return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval); max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)); @@ -1359,6 +1361,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci, max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)); max_burst = 0; switch (udev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: /* dig out max burst from ep companion desc */ max_burst = ep->ss_ep_comp.bMaxBurst; diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 3bfe81c6229ac3..4025a57ffb9806 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -3705,7 +3705,7 @@ static unsigned int xhci_get_burst_count(struct xhci_hcd *xhci, { unsigned int max_burst; - if (xhci->hci_version < 0x100 || udev->speed != USB_SPEED_SUPER) + if (xhci->hci_version < 0x100 || udev->speed < USB_SPEED_SUPER) return 0; max_burst = urb->ep->ss_ep_comp.bMaxBurst; @@ -3731,6 +3731,7 @@ static unsigned int xhci_get_last_burst_packet_count(struct xhci_hcd *xhci, return 0; switch (udev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: /* bMaxBurst is zero based: 0 means 1 packet per burst */ max_burst = urb->ep->ss_ep_comp.bMaxBurst; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b63507bbf74b19..648f8c4761ede3 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -2054,6 +2054,7 @@ static unsigned int xhci_get_block_size(struct usb_device *udev) case USB_SPEED_HIGH: return HS_BLOCK; case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: return SS_BLOCK; case USB_SPEED_UNKNOWN: case USB_SPEED_WIRELESS: @@ -2179,7 +2180,7 @@ static int xhci_check_bw_table(struct xhci_hcd *xhci, unsigned int packets_remaining = 0; unsigned int i; - if (virt_dev->udev->speed == USB_SPEED_SUPER) + if (virt_dev->udev->speed >= USB_SPEED_SUPER) return xhci_check_ss_bw(xhci, virt_dev); if (virt_dev->udev->speed == USB_SPEED_HIGH) { @@ -2380,7 +2381,7 @@ void xhci_drop_ep_from_interval_table(struct xhci_hcd *xhci, if (xhci_is_async_ep(ep_bw->type)) return; - if (udev->speed == USB_SPEED_SUPER) { + if (udev->speed >= USB_SPEED_SUPER) { if (xhci_is_sync_in_ep(ep_bw->type)) xhci->devs[udev->slot_id]->bw_table->ss_bw_in -= xhci_get_ss_bw_consumed(ep_bw); @@ -2418,6 +2419,7 @@ void xhci_drop_ep_from_interval_table(struct xhci_hcd *xhci, interval_bw->overhead[HS_OVERHEAD_TYPE] -= 1; break; case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: case USB_SPEED_UNKNOWN: case USB_SPEED_WIRELESS: /* Should never happen because only LS/FS/HS endpoints will get @@ -2477,6 +2479,7 @@ static void xhci_add_ep_to_interval_table(struct xhci_hcd *xhci, interval_bw->overhead[HS_OVERHEAD_TYPE] += 1; break; case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: case USB_SPEED_UNKNOWN: case USB_SPEED_WIRELESS: /* Should never happen because only LS/FS/HS endpoints will get From ea4e60bc9cf5898e0fc2c79938521d2a7ea633bb Mon Sep 17 00:00:00 2001 From: Emmanouil Maroudas Date: Sat, 23 Apr 2016 18:33:00 +0300 Subject: [PATCH 19/36] EDAC: Increment correct counter in edac_inc_ue_error() commit 993f88f1cc7f0879047ff353e824e5cc8f10adfc upstream. Fix typo in edac_inc_ue_error() to increment ue_noinfo_count instead of ce_noinfo_count. Signed-off-by: Emmanouil Maroudas Cc: Mauro Carvalho Chehab Cc: linux-edac Fixes: 4275be635597 ("edac: Change internal representation to work with layers") Link: http://lkml.kernel.org/r/1461425580-5898-1-git-send-email-emmanouil.maroudas@gmail.com Signed-off-by: Borislav Petkov Signed-off-by: Greg Kroah-Hartman --- drivers/edac/edac_mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 19dc0bc9b13675..9530c5703bb7ee 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -962,7 +962,7 @@ static void edac_inc_ue_error(struct mem_ctl_info *mci, mci->ue_mc += count; if (!enable_per_layer_report) { - mci->ce_noinfo_count += count; + mci->ue_noinfo_count += count; return; } From f5a67faecf9b9be41559e7da424ba7529cdaa651 Mon Sep 17 00:00:00 2001 From: Stefan Haberland Date: Mon, 8 Aug 2016 14:08:17 +0200 Subject: [PATCH 20/36] s390/dasd: fix hanging device after clear subchannel commit 9ba333dc55cbb9523553df973adb3024d223e905 upstream. When a device is in a status where CIO has killed all I/O by itself the interrupt for a clear request may not contain an irb to determine the clear function. Instead it contains an error pointer -EIO. This was ignored by the DASD int_handler leading to a hanging device waiting for a clear interrupt. Handle -EIO error pointer correctly for requests that are clear pending and treat the clear as successful. Signed-off-by: Stefan Haberland Reviewed-by: Sebastian Ott Signed-off-by: Martin Schwidefsky Signed-off-by: Greg Kroah-Hartman --- drivers/s390/block/dasd.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 1eef0f586950b6..cf0214005fcad7 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1613,9 +1613,18 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, unsigned long long now; int expires; + cqr = (struct dasd_ccw_req *) intparm; if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { case -EIO: + if (cqr && cqr->status == DASD_CQR_CLEAR_PENDING) { + device = (struct dasd_device *) cqr->startdev; + cqr->status = DASD_CQR_CLEARED; + dasd_device_clear_timer(device); + wake_up(&dasd_flush_wq); + dasd_schedule_device_bh(device); + return; + } break; case -ETIMEDOUT: DBF_EVENT_DEVID(DBF_WARNING, cdev, "%s: " @@ -1631,7 +1640,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, } now = get_tod_clock(); - cqr = (struct dasd_ccw_req *) intparm; /* check for conditions that should be handled immediately */ if (!cqr || !(scsw_dstat(&irb->scsw) == (DEV_STAT_CHN_END | DEV_STAT_DEV_END) && From 950af829a5fc32c34ae71e2e83f19d4dd58709b8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Tue, 2 Aug 2016 11:13:41 +0200 Subject: [PATCH 21/36] mac80211: fix purging multicast PS buffer queue commit 6b07d9ca9b5363dda959b9582a3fc9c0b89ef3b5 upstream. The code currently assumes that buffered multicast PS frames don't have a pending ACK frame for tx status reporting. However, hostapd sends a broadcast deauth frame on teardown for which tx status is requested. This can lead to the "Have pending ack frames" warning on module reload. Fix this by using ieee80211_free_txskb/ieee80211_purge_tx_queue. Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/mac80211/cfg.c | 2 +- net/mac80211/tx.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 453e974287d19b..ccaffd79dc6d68 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1126,7 +1126,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) /* free all potentially still buffered bcast frames */ local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); - skb_queue_purge(&sdata->u.ap.ps.bc_buf); + ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); ieee80211_vif_copy_chanctx_to_vlans(sdata, true); mutex_lock(&local->mtx); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index bc08a9ce3bd405..0f334c15ec9d56 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -351,7 +351,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) skb = skb_dequeue(&ps->bc_buf); if (skb) { purged++; - dev_kfree_skb(skb); + ieee80211_free_txskb(&local->hw, skb); } total += skb_queue_len(&ps->bc_buf); } @@ -434,7 +434,7 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) if (skb_queue_len(&ps->bc_buf) >= AP_MAX_BC_BUFFER) { ps_dbg(tx->sdata, "BC TX buffer full - dropping the oldest frame\n"); - dev_kfree_skb(skb_dequeue(&ps->bc_buf)); + ieee80211_free_txskb(&tx->local->hw, skb_dequeue(&ps->bc_buf)); } else tx->local->total_ps_buffered++; @@ -2910,7 +2910,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev); if (!ieee80211_tx_prepare(sdata, &tx, skb)) break; - dev_kfree_skb_any(skb); + ieee80211_free_txskb(hw, skb); } info = IEEE80211_SKB_CB(skb); From 67d4aa44188d0da7f661972a88f9ac448e4fd2fe Mon Sep 17 00:00:00 2001 From: Dave Carroll Date: Fri, 5 Aug 2016 13:44:10 -0600 Subject: [PATCH 22/36] aacraid: Check size values after double-fetch from user commit fa00c437eef8dc2e7b25f8cd868cfa405fcc2bb3 upstream. In aacraid's ioctl_send_fib() we do two fetches from userspace, one the get the fib header's size and one for the fib itself. Later we use the size field from the second fetch to further process the fib. If for some reason the size from the second fetch is different than from the first fix, we may encounter an out-of- bounds access in aac_fib_send(). We also check the sender size to insure it is not out of bounds. This was reported in https://bugzilla.kernel.org/show_bug.cgi?id=116751 and was assigned CVE-2016-6480. Reported-by: Pengfei Wang Fixes: 7c00ffa31 '[SCSI] 2.6 aacraid: Variable FIB size (updated patch)' Signed-off-by: Dave Carroll Reviewed-by: Johannes Thumshirn Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/aacraid/commctrl.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index fbcd48d0bfc339..16b2db3cd9f1ec 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -63,7 +63,7 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) struct fib *fibptr; struct hw_fib * hw_fib = (struct hw_fib *)0; dma_addr_t hw_fib_pa = (dma_addr_t)0LL; - unsigned size; + unsigned int size, osize; int retval; if (dev->in_reset) { @@ -87,7 +87,8 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) * will not overrun the buffer when we copy the memory. Return * an error if we would. */ - size = le16_to_cpu(kfib->header.Size) + sizeof(struct aac_fibhdr); + osize = size = le16_to_cpu(kfib->header.Size) + + sizeof(struct aac_fibhdr); if (size < le16_to_cpu(kfib->header.SenderSize)) size = le16_to_cpu(kfib->header.SenderSize); if (size > dev->max_fib_size) { @@ -118,6 +119,14 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) goto cleanup; } + /* Sanity check the second copy */ + if ((osize != le16_to_cpu(kfib->header.Size) + + sizeof(struct aac_fibhdr)) + || (size < le16_to_cpu(kfib->header.SenderSize))) { + retval = -EINVAL; + goto cleanup; + } + if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) { aac_adapter_interrupt(dev); /* From 8713d9cf42146793d84bf221ecff85e1dfa7e1fd Mon Sep 17 00:00:00 2001 From: Gavin Li Date: Fri, 12 Aug 2016 00:52:56 -0700 Subject: [PATCH 23/36] cdc-acm: fix wrong pipe type on rx interrupt xfers commit add125054b8727103631dce116361668436ef6a7 upstream. This fixes the "BOGUS urb xfer" warning logged by usb_submit_urb(). Signed-off-by: Gavin Li Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 5 ++--- drivers/usb/class/cdc-acm.h | 1 - 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index b6f5c7d3737b9a..18cb44d9cbd802 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1296,7 +1296,6 @@ static int acm_probe(struct usb_interface *intf, spin_lock_init(&acm->write_lock); spin_lock_init(&acm->read_lock); mutex_init(&acm->mutex); - acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress); acm->is_int_ep = usb_endpoint_xfer_int(epread); if (acm->is_int_ep) acm->bInterval = epread->bInterval; @@ -1345,14 +1344,14 @@ static int acm_probe(struct usb_interface *intf, urb->transfer_dma = rb->dma; if (acm->is_int_ep) { usb_fill_int_urb(urb, acm->dev, - acm->rx_endpoint, + usb_rcvintpipe(usb_dev, epread->bEndpointAddress), rb->base, acm->readsize, acm_read_bulk_callback, rb, acm->bInterval); } else { usb_fill_bulk_urb(urb, acm->dev, - acm->rx_endpoint, + usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress), rb->base, acm->readsize, acm_read_bulk_callback, rb); diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 80826f843e040c..82db3387ac6ee9 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -95,7 +95,6 @@ struct acm { struct urb *read_urbs[ACM_NR]; struct acm_rb read_buffers[ACM_NR]; int rx_buflimit; - int rx_endpoint; spinlock_t read_lock; int write_used; /* number of non-empty write buffers */ int transmitting; From 216f9185f9f36225978e83da8edbd671fc0c2971 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 5 Aug 2016 23:37:34 -0700 Subject: [PATCH 24/36] megaraid_sas: Fix probing cards without io port commit e7f851684efb3377e9c93aca7fae6e76212e5680 upstream. Found one megaraid_sas HBA probe fails, [ 187.235190] scsi host2: Avago SAS based MegaRAID driver [ 191.112365] megaraid_sas 0000:89:00.0: BAR 0: can't reserve [io 0x0000-0x00ff] [ 191.120548] megaraid_sas 0000:89:00.0: IO memory region busy! and the card has resource like, [ 125.097714] pci 0000:89:00.0: [1000:005d] type 00 class 0x010400 [ 125.104446] pci 0000:89:00.0: reg 0x10: [io 0x0000-0x00ff] [ 125.110686] pci 0000:89:00.0: reg 0x14: [mem 0xce400000-0xce40ffff 64bit] [ 125.118286] pci 0000:89:00.0: reg 0x1c: [mem 0xce300000-0xce3fffff 64bit] [ 125.125891] pci 0000:89:00.0: reg 0x30: [mem 0xce200000-0xce2fffff pref] that does not io port resource allocated from BIOS, and kernel can not assign one as io port shortage. The driver is only looking for MEM, and should not fail. It turns out megasas_init_fw() etc are using bar index as mask. index 1 is used as mask 1, so that pci_request_selected_regions() is trying to request BAR0 instead of BAR1. Fix all related reference. Fixes: b6d5d8808b4c ("megaraid_sas: Use lowest memory bar for SR-IOV VF support") Signed-off-by: Yinghai Lu Acked-by: Kashyap Desai Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/megaraid/megaraid_sas_base.c | 6 +++--- drivers/scsi/megaraid/megaraid_sas_fusion.c | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 9f833f1504cc29..5ff955524aaf82 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -3624,7 +3624,7 @@ static int megasas_init_fw(struct megasas_instance *instance) /* Find first memory bar */ bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); instance->bar = find_first_bit(&bar_list, sizeof(unsigned long)); - if (pci_request_selected_regions(instance->pdev, instance->bar, + if (pci_request_selected_regions(instance->pdev, 1<bar, "megasas: LSI")) { printk(KERN_DEBUG "megasas: IO memory region busy!\n"); return -EBUSY; @@ -3858,7 +3858,7 @@ static int megasas_init_fw(struct megasas_instance *instance) iounmap(instance->reg_set); fail_ioremap: - pci_release_selected_regions(instance->pdev, instance->bar); + pci_release_selected_regions(instance->pdev, 1<bar); return -EINVAL; } @@ -3879,7 +3879,7 @@ static void megasas_release_mfi(struct megasas_instance *instance) iounmap(instance->reg_set); - pci_release_selected_regions(instance->pdev, instance->bar); + pci_release_selected_regions(instance->pdev, 1<bar); } /** diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index a1f04e3b2a8f84..665131a0b61693 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -2175,7 +2175,7 @@ megasas_release_fusion(struct megasas_instance *instance) iounmap(instance->reg_set); - pci_release_selected_regions(instance->pdev, instance->bar); + pci_release_selected_regions(instance->pdev, 1<bar); } /** From b28302f5095c063c1249e2f25b53ef6f70633f05 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 16 Aug 2016 09:58:25 +0200 Subject: [PATCH 25/36] gpio: Fix OF build problem on UM commit 2527ecc9195e9c66252af24c4689e8a67cd4ccb9 upstream. The UserMode (UM) Linux build was failing in gpiolib-of as it requires ioremap()/iounmap() to exist, which is absent from UM. The non-existence of IO memory is negatively defined as CONFIG_NO_IOMEM which means we need to depend on HAS_IOMEM. Cc: Geert Uytterhoeven Reported-by: kbuild test robot Signed-off-by: Linus Walleij Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 903f24d28ba065..7025562ede1245 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -50,6 +50,7 @@ config GPIO_DEVRES config OF_GPIO def_bool y depends on OF + depends on HAS_IOMEM config GPIO_ACPI def_bool y From ccb081376fec96f6203f2faeda1bc5e365883322 Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Thu, 25 Aug 2016 15:17:11 -0700 Subject: [PATCH 26/36] fs/seq_file: fix out-of-bounds read commit 088bf2ff5d12e2e32ee52a4024fec26e582f44d3 upstream. seq_read() is a nasty piece of work, not to mention buggy. It has (I think) an old bug which allows unprivileged userspace to read beyond the end of m->buf. I was getting these: BUG: KASAN: slab-out-of-bounds in seq_read+0xcd2/0x1480 at addr ffff880116889880 Read of size 2713 by task trinity-c2/1329 CPU: 2 PID: 1329 Comm: trinity-c2 Not tainted 4.8.0-rc1+ #96 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 Call Trace: kasan_object_err+0x1c/0x80 kasan_report_error+0x2cb/0x7e0 kasan_report+0x4e/0x80 check_memory_region+0x13e/0x1a0 kasan_check_read+0x11/0x20 seq_read+0xcd2/0x1480 proc_reg_read+0x10b/0x260 do_loop_readv_writev.part.5+0x140/0x2c0 do_readv_writev+0x589/0x860 vfs_readv+0x7b/0xd0 do_readv+0xd8/0x2c0 SyS_readv+0xb/0x10 do_syscall_64+0x1b3/0x4b0 entry_SYSCALL64_slow_path+0x25/0x25 Object at ffff880116889100, in cache kmalloc-4096 size: 4096 Allocated: PID = 1329 save_stack_trace+0x26/0x80 save_stack+0x46/0xd0 kasan_kmalloc+0xad/0xe0 __kmalloc+0x1aa/0x4a0 seq_buf_alloc+0x35/0x40 seq_read+0x7d8/0x1480 proc_reg_read+0x10b/0x260 do_loop_readv_writev.part.5+0x140/0x2c0 do_readv_writev+0x589/0x860 vfs_readv+0x7b/0xd0 do_readv+0xd8/0x2c0 SyS_readv+0xb/0x10 do_syscall_64+0x1b3/0x4b0 return_from_SYSCALL_64+0x0/0x6a Freed: PID = 0 (stack is not available) Memory state around the buggy address: ffff88011688a000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88011688a080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88011688a100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88011688a180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88011688a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Disabling lock debugging due to kernel taint This seems to be the same thing that Dave Jones was seeing here: https://lkml.org/lkml/2016/8/12/334 There are multiple issues here: 1) If we enter the function with a non-empty buffer, there is an attempt to flush it. But it was not clearing m->from after doing so, which means that if we try to do this flush twice in a row without any call to traverse() in between, we are going to be reading from the wrong place -- the splat above, fixed by this patch. 2) If there's a short write to userspace because of page faults, the buffer may already contain multiple lines (i.e. pos has advanced by more than 1), but we don't save the progress that was made so the next call will output what we've already returned previously. Since that is a much less serious issue (and I have a headache after staring at seq_read() for the past 8 hours), I'll leave that for now. Link: http://lkml.kernel.org/r/1471447270-32093-1-git-send-email-vegard.nossum@oracle.com Signed-off-by: Vegard Nossum Reported-by: Dave Jones Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- fs/seq_file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/seq_file.c b/fs/seq_file.c index 1d641bb108d239..d88584c61c1e2e 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -207,8 +207,10 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) size -= n; buf += n; copied += n; - if (!m->count) + if (!m->count) { + m->from = 0; m->index++; + } if (!size) goto Done; } From fb21f6365c7bd0d6ba5d1889194be3b966f34aaf Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 22 Aug 2016 13:25:56 -0700 Subject: [PATCH 27/36] Input: tegra-kbc - fix inverted reset logic commit fae16989be77b09bab86c79233e4b511ea769cea upstream. Commit fe6b0dfaba68 ("Input: tegra-kbc - use reset framework") accidentally converted _deassert to _assert, so there is no code to wake up this hardware. Fixes: fe6b0dfaba68 ("Input: tegra-kbc - use reset framework") Signed-off-by: Masahiro Yamada Acked-by: Thierry Reding Acked-by: Laxman Dewangan Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/keyboard/tegra-kbc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index 9757a58bc8978c..5d39b966dd282e 100644 --- a/drivers/input/keyboard/tegra-kbc.c +++ b/drivers/input/keyboard/tegra-kbc.c @@ -376,7 +376,7 @@ static int tegra_kbc_start(struct tegra_kbc *kbc) /* Reset the KBC controller to clear all previous status.*/ reset_control_assert(kbc->rst); udelay(100); - reset_control_assert(kbc->rst); + reset_control_deassert(kbc->rst); udelay(100); tegra_kbc_config_pins(kbc); From 930100acbd2eb700e35daa01e2091947e1ecf7e3 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 25 Jul 2016 11:36:54 -0700 Subject: [PATCH 28/36] Input: i8042 - break load dependency between atkbd/psmouse and i8042 commit 4097461897df91041382ff6fcd2bfa7ee6b2448c upstream. As explained in 1407814240-4275-1-git-send-email-decui@microsoft.com we have a hard load dependency between i8042 and atkbd which prevents keyboard from working on Gen2 Hyper-V VMs. > hyperv_keyboard invokes serio_interrupt(), which needs a valid serio > driver like atkbd.c. atkbd.c depends on libps2.c because it invokes > ps2_command(). libps2.c depends on i8042.c because it invokes > i8042_check_port_owner(). As a result, hyperv_keyboard actually > depends on i8042.c. > > For a Generation 2 Hyper-V VM (meaning no i8042 device emulated), if a > Linux VM (like Arch Linux) happens to configure CONFIG_SERIO_I8042=m > rather than =y, atkbd.ko can't load because i8042.ko can't load(due to > no i8042 device emulated) and finally hyperv_keyboard can't work and > the user can't input: https://bugs.archlinux.org/task/39820 > (Ubuntu/RHEL/SUSE aren't affected since they use CONFIG_SERIO_I8042=y) To break the dependency we move away from using i8042_check_port_owner() and instead allow serio port owner specify a mutex that clients should use to serialize PS/2 command stream. Reported-by: Mark Laws Tested-by: Mark Laws Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/serio/i8042.c | 16 +--------------- drivers/input/serio/libps2.c | 10 ++++------ include/linux/i8042.h | 6 ------ include/linux/serio.h | 24 +++++++++++++++++++----- 4 files changed, 24 insertions(+), 32 deletions(-) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index eb796fff9e626d..3ff3d0e3c9c6a9 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -1230,6 +1230,7 @@ static int __init i8042_create_kbd_port(void) serio->start = i8042_start; serio->stop = i8042_stop; serio->close = i8042_port_close; + serio->ps2_cmd_mutex = &i8042_mutex; serio->port_data = port; serio->dev.parent = &i8042_platform_device->dev; strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name)); @@ -1321,21 +1322,6 @@ static void i8042_unregister_ports(void) } } -/* - * Checks whether port belongs to i8042 controller. - */ -bool i8042_check_port_owner(const struct serio *port) -{ - int i; - - for (i = 0; i < I8042_NUM_PORTS; i++) - if (i8042_ports[i].serio == port) - return true; - - return false; -} -EXPORT_SYMBOL(i8042_check_port_owner); - static void i8042_free_irqs(void) { if (i8042_aux_irq_registered) diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index 75516996db2070..ded0c6f65c9f90 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -56,19 +56,17 @@ EXPORT_SYMBOL(ps2_sendbyte); void ps2_begin_command(struct ps2dev *ps2dev) { - mutex_lock(&ps2dev->cmd_mutex); + struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex; - if (i8042_check_port_owner(ps2dev->serio)) - i8042_lock_chip(); + mutex_lock(m); } EXPORT_SYMBOL(ps2_begin_command); void ps2_end_command(struct ps2dev *ps2dev) { - if (i8042_check_port_owner(ps2dev->serio)) - i8042_unlock_chip(); + struct mutex *m = ps2dev->serio->ps2_cmd_mutex ?: &ps2dev->cmd_mutex; - mutex_unlock(&ps2dev->cmd_mutex); + mutex_unlock(m); } EXPORT_SYMBOL(ps2_end_command); diff --git a/include/linux/i8042.h b/include/linux/i8042.h index 0f9bafa17a02dd..d98780ca9604a7 100644 --- a/include/linux/i8042.h +++ b/include/linux/i8042.h @@ -62,7 +62,6 @@ struct serio; void i8042_lock_chip(void); void i8042_unlock_chip(void); int i8042_command(unsigned char *param, int command); -bool i8042_check_port_owner(const struct serio *); int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str, struct serio *serio)); int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str, @@ -83,11 +82,6 @@ static inline int i8042_command(unsigned char *param, int command) return -ENODEV; } -static inline bool i8042_check_port_owner(const struct serio *serio) -{ - return false; -} - static inline int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str, struct serio *serio)) { diff --git a/include/linux/serio.h b/include/linux/serio.h index 9f779c7a2da467..27ae809edd7050 100644 --- a/include/linux/serio.h +++ b/include/linux/serio.h @@ -29,7 +29,8 @@ struct serio { struct serio_device_id id; - spinlock_t lock; /* protects critical sections from port's interrupt handler */ + /* Protects critical sections from port's interrupt handler */ + spinlock_t lock; int (*write)(struct serio *, unsigned char); int (*open)(struct serio *); @@ -38,16 +39,29 @@ struct serio { void (*stop)(struct serio *); struct serio *parent; - struct list_head child_node; /* Entry in parent->children list */ + /* Entry in parent->children list */ + struct list_head child_node; struct list_head children; - unsigned int depth; /* level of nesting in serio hierarchy */ + /* Level of nesting in serio hierarchy */ + unsigned int depth; - struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */ - struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ + /* + * serio->drv is accessed from interrupt handlers; when modifying + * caller should acquire serio->drv_mutex and serio->lock. + */ + struct serio_driver *drv; + /* Protects serio->drv so attributes can pin current driver */ + struct mutex drv_mutex; struct device dev; struct list_head node; + + /* + * For use by PS/2 layer when several ports share hardware and + * may get indigestion when exposed to concurrent access (i8042). + */ + struct mutex *ps2_cmd_mutex; }; #define to_serio_port(d) container_of(d, struct serio, dev) From ab9668bfd026b60218967d796ea53a662fbea6a2 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 16 Aug 2016 17:38:54 -0700 Subject: [PATCH 29/36] Input: i8042 - set up shared ps2_cmd_mutex for AUX ports commit 47af45d684b5f3ae000ad448db02ce4f13f73273 upstream. The commit 4097461897df ("Input: i8042 - break load dependency ...") correctly set up ps2_cmd_mutex pointer for the KBD port but forgot to do the same for AUX port(s), which results in communication on KBD and AUX ports to clash with each other. Fixes: 4097461897df ("Input: i8042 - break load dependency ...") Reported-by: Bruno Wolff III Tested-by: Bruno Wolff III Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/serio/i8042.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 3ff3d0e3c9c6a9..9a0cc5b5561a80 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -1258,6 +1258,7 @@ static int __init i8042_create_aux_port(int idx) serio->write = i8042_aux_write; serio->start = i8042_start; serio->stop = i8042_stop; + serio->ps2_cmd_mutex = &i8042_mutex; serio->port_data = port; serio->dev.parent = &i8042_platform_device->dev; if (idx < 0) { From d8a447ac8a875ba63b368a5bf0924d3ef87fb7de Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 15 Jul 2016 14:09:13 +0300 Subject: [PATCH 30/36] crypto: nx - off by one bug in nx_of_update_msc() commit e514cc0a492a3f39ef71b31590a7ef67537ee04b upstream. The props->ap[] array is defined like this: struct alg_props ap[NX_MAX_FC][NX_MAX_MODE][3]; So we can see that if msc->fc and msc->mode are == to NX_MAX_FC or NX_MAX_MODE then we're off by one. Fixes: ae0222b7289d ('powerpc/crypto: nx driver code supporting nx encryption') Signed-off-by: Dan Carpenter Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- drivers/crypto/nx/nx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c index 5533fe31c90dff..433a7696bf0f75 100644 --- a/drivers/crypto/nx/nx.c +++ b/drivers/crypto/nx/nx.c @@ -330,7 +330,7 @@ static void nx_of_update_msc(struct device *dev, ((bytes_so_far + sizeof(struct msc_triplet)) <= lenp) && i < msc->triplets; i++) { - if (msc->fc > NX_MAX_FC || msc->mode > NX_MAX_MODE) { + if (msc->fc >= NX_MAX_FC || msc->mode >= NX_MAX_MODE) { dev_err(dev, "unknown function code/mode " "combo: %d/%d (ignored)\n", msc->fc, msc->mode); From b10f4ba6e634b3cf53d0db1b9e27e3251e502c92 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Mon, 22 Aug 2016 16:58:53 -0400 Subject: [PATCH 31/36] USB: fix typo in wMaxPacketSize validation commit 6c73358c83ce870c0cf32413e5cadb3b9a39c606 upstream. The maximum value allowed for wMaxPacketSize of a high-speed interrupt endpoint is 1024 bytes, not 1023. Signed-off-by: Alan Stern Fixes: aed9d65ac327 ("USB: validate wMaxPacketValue entries in endpoint descriptors") Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 95207d670f6cf5..0e953099711908 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -159,7 +159,7 @@ static const unsigned short high_speed_maxpacket_maxes[4] = { [USB_ENDPOINT_XFER_CONTROL] = 64, [USB_ENDPOINT_XFER_ISOC] = 1024, [USB_ENDPOINT_XFER_BULK] = 512, - [USB_ENDPOINT_XFER_INT] = 1023, + [USB_ENDPOINT_XFER_INT] = 1024, }; static const unsigned short super_speed_maxpacket_maxes[4] = { [USB_ENDPOINT_XFER_CONTROL] = 512, From fe7c1f5d6e205329ffc895992031200df0a0fd2d Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Fri, 12 Aug 2016 01:05:08 +0300 Subject: [PATCH 32/36] USB: serial: mos7720: fix non-atomic allocation in write path commit 5a5a1d614287a647b36dff3f40c2b0ceabbc83ec upstream. There is an allocation with GFP_KERNEL flag in mos7720_write(), while it may be called from interrupt context. Follow-up for commit 191252837626 ("USB: kobil_sct: fix non-atomic allocation in write path") Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7720.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 4eb277225a771f..56bc364391464b 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1239,7 +1239,7 @@ static int mos7720_write(struct tty_struct *tty, struct usb_serial_port *port, if (urb->transfer_buffer == NULL) { urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, - GFP_KERNEL); + GFP_ATOMIC); if (!urb->transfer_buffer) goto exit; } From a2417849d26d37419db8522219fcf901f7156041 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Fri, 12 Aug 2016 01:05:09 +0300 Subject: [PATCH 33/36] USB: serial: mos7840: fix non-atomic allocation in write path commit 3b7c7e52efda0d4640060de747768360ba70a7c0 upstream. There is an allocation with GFP_KERNEL flag in mos7840_write(), while it may be called from interrupt context. Follow-up for commit 191252837626 ("USB: kobil_sct: fix non-atomic allocation in write path") Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7840.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index e9d967ff521b57..92f1a3bc22a899 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1372,8 +1372,8 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, } if (urb->transfer_buffer == NULL) { - urb->transfer_buffer = - kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + urb->transfer_buffer = kmalloc(URB_TRANSFER_BUFFER_SIZE, + GFP_ATOMIC); if (!urb->transfer_buffer) goto exit; } From 425e96af3c8b5a82316b4a7ec1b3b17e59fcb295 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 29 Jun 2016 20:27:44 +0100 Subject: [PATCH 34/36] staging: comedi: daqboard2000: bug fix board type matching code commit 80e162ee9b31d77d851b10f8c5299132be1e120f upstream. `daqboard2000_find_boardinfo()` is supposed to check if the DaqBoard/2000 series model is supported, based on the PCI subvendor and subdevice ID. The current code is wrong as it is comparing the PCI device's subdevice ID to an expected, fixed value for the subvendor ID. It should be comparing the PCI device's subvendor ID to this fixed value. Correct it. Fixes: 7e8401b23e7f ("staging: comedi: daqboard2000: add back subsystem_device check") Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/daqboard2000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c index ce153fcb8b2af8..3c585b9de1b690 100644 --- a/drivers/staging/comedi/drivers/daqboard2000.c +++ b/drivers/staging/comedi/drivers/daqboard2000.c @@ -658,7 +658,7 @@ static const void *daqboard2000_find_boardinfo(struct comedi_device *dev, const struct daq200_boardtype *board; int i; - if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH) + if (pcidev->subsystem_vendor != PCI_VENDOR_ID_IOTECH) return NULL; for (i = 0; i < ARRAY_SIZE(boardtypes); i++) { From c6c94205010d5bb4bcac3916c3433cd5da440e46 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 5 May 2016 16:23:04 +0300 Subject: [PATCH 35/36] ACPI / sysfs: fix error code in get_status() commit f18ebc211e259d4f591e39e74b2aa2de226c9a1d upstream. The problem with ornamental, do-nothing gotos is that they lead to "forgot to set the error code" bugs. We should be returning -EINVAL here but we don't. It leads to an uninitalized variable in counter_show(): drivers/acpi/sysfs.c:603 counter_show() error: uninitialized symbol 'status'. Fixes: 1c8fce27e275 (ACPI: introduce drivers/acpi/sysfs.c) Signed-off-by: Dan Carpenter Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/sysfs.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 91a32cefb11f60..684baf937c7cf5 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -494,23 +494,22 @@ static void acpi_global_event_handler(u32 event_type, acpi_handle device, static int get_status(u32 index, acpi_event_status *status, acpi_handle *handle) { - int result = 0; + int result; if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS) - goto end; + return -EINVAL; if (index < num_gpes) { result = acpi_get_gpe_device(index, handle); if (result) { ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND, "Invalid GPE 0x%x", index)); - goto end; + return result; } result = acpi_get_gpe_status(*handle, index, status); } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS)) result = acpi_get_event_status(index - num_gpes, status); -end: return result; } From a38ae26d5b7a39deb83b53e7940acc217428622d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 7 Sep 2016 08:30:12 +0200 Subject: [PATCH 36/36] Linux 3.14.78 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index fc4df99727c1ae..74346f0d89c13b 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ VERSION = 3 PATCHLEVEL = 14 -SUBLEVEL = 77 +SUBLEVEL = 78 EXTRAVERSION = NAME = Remembering Coco