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2018-09-14android: binder: no outgoing transaction when thread todo has transactionSherry Yang1-12/+32
When a process dies, failed reply is sent to the sender of any transaction queued on a dead thread's todo list. The sender asserts that the received failed reply corresponds to the head of the transaction stack. This assert can fail if the dead thread is allowed to send outgoing transactions when there is already a transaction on its todo list, because this new transaction can end up on the transaction stack of the original sender. The following steps illustrate how this assertion can fail. 1. Thread1 sends txn19 to Thread2 (T1->transaction_stack=txn19, T2->todo+=txn19) 2. Without processing todo list, Thread2 sends txn20 to Thread1 (T1->todo+=txn20, T2->transaction_stack=txn20) 3. T1 processes txn20 on its todo list (T1->transaction_stack=txn20->txn19, T1->todo=<empty>) 4. T2 dies, T2->todo cleanup attempts to send failed reply for txn19, but T1->transaction_stack points to txn20 -- assertion failes Step 2. is the incorrect behavior. When there is a transaction on a thread's todo list, this thread should not be able to send any outgoing synchronous transactions. Only the head of the todo list needs to be checked because only threads that are waiting for proc work can directly receive work from another thread, and no work is allowed to be queued on such a thread without waking up the thread. This patch also enforces that a thread is not waiting for proc work when a work is directly enqueued to its todo list. Acked-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Sherry Yang <sherryy@android.com> Reviewed-by: Martijn Coenen <maco@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12uio: convert to vm_fault_tSouptick Joarder1-1/+1
As part of commit 9b85e95a3080 ("uio: Change return type to vm_fault_t") in 4.19-rc1, this conversion was missed. Now converted 'ret' to vm_fault_t type. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12uio: Convert to using %pOFn instead of device_node.nameRob Herring1-2/+1
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12nvmem: core: return error code instead of NULL from nvmem_device_getSrinivas Kandagatla1-1/+1
nvmem_device_get() should return ERR_PTR() on error or valid pointer on success, but one of the code path seems to return NULL, so fix it. Reported-by: Niklas Cassel <niklas.cassel@linaro.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12misc: lkdtm: fixed static variable initializationParth Y Shah1-1/+1
Resolved "ERROR: do not initialise statics to 0" Signed-off-by: Parth Y Shah <sparth1292@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12misc: bh1770glc: remove unused array prox_curr_maColin Ian King1-3/+0
Array prox_curr_ma is declared but never used, hence it is redundant and can be removed. Cleans up clang warning: warning: 'prox_curr_ma' defined but not used [-Wunused-const-variable=] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12misc: apds990x: remove unused array ir_currentsColin Ian King1-1/+0
Array ir_currents is declared but never used, hence it is redundant and can be removed. Cleans up clang warning: warning: 'ir_currents' defined but not used [-Wunused-const-variable=] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12uio: ensure class is registered before devicesAlexandre Belloni1-0/+9
When both uio and the uio drivers are built in the kernel, it is possible for a driver to register devices before the uio class is registered. This may result in a NULL pointer dereference later on in get_device_parent() when accessing the class glue_dirs spinlock. The trace looks like that: Unable to handle kernel NULL pointer dereference at virtual address 00000140 [...] [<ffff0000089cc234>] _raw_spin_lock+0x14/0x48 [<ffff0000084f56bc>] device_add+0x154/0x6a0 [<ffff0000084f5e48>] device_create_groups_vargs+0x120/0x128 [<ffff0000084f5edc>] device_create+0x54/0x60 [<ffff0000086e72c0>] __uio_register_device+0x120/0x4a8 [<ffff000008528b7c>] jaguar2_pci_probe+0x2d4/0x558 [<ffff0000083fc18c>] local_pci_probe+0x3c/0xb8 [<ffff0000083fd81c>] pci_device_probe+0x11c/0x180 [<ffff0000084f88bc>] driver_probe_device+0x22c/0x2d8 [<ffff0000084f8a24>] __driver_attach+0xbc/0xc0 [<ffff0000084f69fc>] bus_for_each_dev+0x4c/0x98 [<ffff0000084f81b8>] driver_attach+0x20/0x28 [<ffff0000084f7d08>] bus_add_driver+0x1b8/0x228 [<ffff0000084f93c0>] driver_register+0x60/0xf8 [<ffff0000083fb918>] __pci_register_driver+0x40/0x48 Return EPROBE_DEFER in that case so the driver can register the device later. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12Drivers: hv: vmbus: Fix synic per-cpu context initializationMichael Kelley1-3/+12
If hv_synic_alloc() errors out, the state of the per-cpu context for some CPUs is unknown since the zero'ing is done as each CPU is iterated over. In such case, hv_synic_cleanup() may try to free memory based on uninitialized values. Fix this by zero'ing the per-cpu context for all CPUs before doing any memory allocations that might fail. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12uio_hv_generic: drop #ifdef DEBUGStephen Hemminger1-1/+0
DEBUG is leftover from the development phase, remove it. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12uio_hv_generic: increase size of receive and send buffersStephen Hemminger1-3/+3
When using DPDK there is significant performance boost by using the largest possible send and receive buffer area. Unfortunately, with UIO model there is not a good way to configure this at run time. But it is okay to have a bigger buffer available even if application only decides to use a smaller piece of it. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12vmbus: add driver_override supportStephen Hemminger3-19/+118
Add support for overriding the default driver for a VMBus device in the same way that it can be done for PCI devices. This patch adds the /sys/bus/vmbus/devices/.../driver_override file and the logic for matching. This is used by driverctl tool to do driver override. https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.com%2Fdriverctl%2Fdriverctl&amp;data=02%7C01%7Ckys%40microsoft.com%7C42e803feb2c544ef6ea908d5fd538878%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636693457619960040&amp;sdata=kEyYHRIjNZCk%2B37moCSqbrZL426YccNQrsWpENcrZdw%3D&amp;reserved=0 Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-12drivers: fpga: fix two trivial spelling mistakesColin Ian King2-2/+2
Trivial fix to two spelling mistakes "execeeded" -> "exceeded" "Invaild" -> "Invalid" Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-09Linux 4.19-rc3v4.19-rc3Linus Torvalds1-1/+1
2018-09-09Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds14-59/+87
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "A set of fixes for x86: - Prevent multiplication result truncation on 32bit. Introduced with the early timestamp reworrk. - Ensure microcode revision storage to be consistent under all circumstances - Prevent write tearing of PTEs - Prevent confusion of user and kernel reegisters when dumping fatal signals verbosely - Make an error return value in a failure path of the vector allocation negative. Returning EINVAL might the caller assume success and causes further wreckage. - A trivial kernel doc warning fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Use WRITE_ONCE() when setting PTEs x86/apic/vector: Make error return value negative x86/process: Don't mix user/kernel regs in 64bit __show_regs() x86/tsc: Prevent result truncation on 32bit x86: Fix kernel-doc atomic.h warnings x86/microcode: Update the new microcode revision unconditionally x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
2018-09-09Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds2-12/+32
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timekeeping fixes from Thomas Gleixner: "Two fixes for timekeeping: - Revert to the previous kthread based update, which is unfortunately required due to lock ordering issues. The removal caused boot failures on old Core2 machines. Add a proper comment why the thread needs to stay to prevent accidental removal in the future. - Fix a silly typo in a function declaration" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: Revert "Remove kthread" timekeeping: Fix declaration of read_persistent_wall_and_boot_offset()
2018-09-09Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irqchip fix from Thomas Gleixner: "A single fix to prevent allocating excessive memory in the GIC/ITS driver. While the subject of the patch might suggest otherwise this is a real fix as some SoCs exceed the memory allocation limits and fail to boot" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-v3-its: Cap lpi_id_bits to reduce memory footprint
2018-09-09Merge branch 'smp-urgent-for-linus' of ↵Linus Torvalds1-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull cpu hotplug fixes from Thomas Gleixner: "Two fixes for the hotplug state machine code: - Move the misplaces smb() in the hotplug thread function to the proper place, otherwise a half update control struct could be observed - Prevent state corruption on error rollback, which causes the state to advance by one and as a consequence skip it in the bringup sequence" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Prevent state corruption on error rollback cpu/hotplug: Adjust misplaced smb() in cpuhp_thread_fun()
2018-09-09Merge tag 'for_linus' of ↵Linus Torvalds3-5/+16
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random driver fix from Ted Ts'o: "Fix things so the choice of whether or not to trust RDRAND to initialize the CRNG is configurable via the boot option random.trust_cpu={on,off}" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: make CPU trust a boot parameter
2018-09-09Merge tag 'kbuild-fixes-v4.19' of ↵Linus Torvalds10-36/+47
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - make setlocalversion more robust about -dirty check - loosen the pkg-config requirement for Kconfig - change missing depmod to a warning from an error - warn modules_install when System.map is missing * tag 'kbuild-fixes-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: modules_install: warn when missing System.map file kbuild: make missing $DEPMOD a Warning instead of an Error kconfig: do not require pkg-config on make {menu,n}config kconfig: remove a spurious self-assignment scripts/setlocalversion: git: Make -dirty check more robust
2018-09-09kbuild: modules_install: warn when missing System.map fileRandy Dunlap1-0/+1
If there is no System.map file for "make modules_install", scripts/depmod.sh will silently exit with success, having done nothing. Since this is an unexpected situation, change it to report a Warning for the missing file. The behavior is not changed except for the Warning message. The (previous) silent success and new Warning can be reproduced by: $ make mrproper; make defconfig $ make modules; make modules_install and since System.map is produced by "make vmlinux", the steps above omit producing the System.map file. Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-09-08Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds21-134/+204
Pull KVM fixes from Radim Krčmář: "ARM: - Fix a VFP corruption in 32-bit guest - Add missing cache invalidation for CoW pages - Two small cleanups s390: - Fallout from the hugetlbfs support: pfmf interpretion and locking - VSIE: fix keywrapping for nested guests PPC: - Fix a bug where pages might not get marked dirty, causing guest memory corruption on migration - Fix a bug causing reads from guest memory to use the wrong guest real address for very large HPT guests (>256G of memory), leading to failures in instruction emulation. x86: - Fix out of bound access from malicious pv ipi hypercalls (introduced in rc1) - Fix delivery of pending interrupts when entering a nested guest, preventing arbitrarily late injection - Sanitize kvm_stat output after destroying a guest - Fix infinite loop when emulating a nested guest page fault and improve the surrounding emulation code - Two minor cleanups" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits) KVM: LAPIC: Fix pv ipis out-of-bounds access KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2 arm64: KVM: Remove pgd_lock KVM: Remove obsolete kvm_unmap_hva notifier backend arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMD KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoW KVM: s390: Properly lock mm context allow_gmap_hpage_1m setting KVM: s390: vsie: copy wrapping keys to right place KVM: s390: Fix pfmf and conditional skey emulation tools/kvm_stat: re-animate display of dead guests tools/kvm_stat: indicate dead guests as such tools/kvm_stat: handle guest removals more gracefully tools/kvm_stat: don't reset stats when setting PID filter for debugfs tools/kvm_stat: fix updates for dead guests tools/kvm_stat: fix handling of invalid paths in debugfs provider tools/kvm_stat: fix python3 issues KVM: x86: Unexport x86_emulate_instruction() KVM: x86: Rename emulate_instruction() to kvm_emulate_instruction() KVM: x86: Do not re-{try,execute} after failed emulation in L2 KVM: x86: Default to not allowing emulation retry in kvm_mmu_page_fault ...
2018-09-08Merge tag 'armsoc-fixes' of ↵Linus Torvalds4-2/+11
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A few more fixes who have trickled in: - MMC bus width fixup for some Allwinner platforms - Fix for NULL deref in ti-aemif when no platform data is passed in - Fix div by 0 in SCMI code - Add a missing module alias in a new RPi driver" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: memory: ti-aemif: fix a potential NULL-pointer dereference firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero hwmon: rpi: add module alias to raspberrypi-hwmon arm64: allwinner: dts: h6: fix Pine H64 MMC bus width
2018-09-08Merge tag 'sunxi-fixes-for-4.19' of ↵Olof Johansson1-0/+2
https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes Allwinner fixes for 4.19 Just one fix for H6 mmc on the Pine H64: the mmc bus width was missing from the device tree. This was added in 4.19-rc1. * tag 'sunxi-fixes-for-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: allwinner: dts: h6: fix Pine H64 MMC bus width Signed-off-by: Olof Johansson <olof@lixom.net>
2018-09-08x86/mm: Use WRITE_ONCE() when setting PTEsNadav Amit3-15/+15
When page-table entries are set, the compiler might optimize their assignment by using multiple instructions to set the PTE. This might turn into a security hazard if the user somehow manages to use the interim PTE. L1TF does not make our lives easier, making even an interim non-present PTE a security hazard. Using WRITE_ONCE() to set PTEs and friends should prevent this potential security hazard. I skimmed the differences in the binary with and without this patch. The differences are (obviously) greater when CONFIG_PARAVIRT=n as more code optimizations are possible. For better and worse, the impact on the binary with this patch is pretty small. Skimming the code did not cause anything to jump out as a security hazard, but it seems that at least move_soft_dirty_pte() caused set_pte_at() to use multiple writes. Signed-off-by: Nadav Amit <namit@vmware.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20180902181451.80520-1-namit@vmware.com
2018-09-08x86/apic/vector: Make error return value negativeThomas Gleixner1-1/+1
activate_managed() returns EINVAL instead of -EINVAL in case of error. While this is unlikely to happen, the positive return value would cause further malfunction at the call site. Fixes: 2db1f959d9dc ("x86/vector: Handle managed interrupts proper") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org
2018-09-07Merge branch 'i2c/for-current' of ↵Linus Torvalds7-14/+16
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - bugfixes for uniphier, i801, and xiic drivers - ID removal (never produced) for imx - one MAINTAINER addition * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: xiic: Record xilinx i2c with Zynq fragment i2c: xiic: Make the start and the byte count write atomic i2c: i801: fix DNV's SMBCTRL register offset i2c: imx-lpi2c: Remove mx8dv compatible entry dt-bindings: imx-lpi2c: Remove mx8dv compatible entry i2c: uniphier-f: issue STOP only for last message or I2C_M_STOP i2c: uniphier: issue STOP only for last message or I2C_M_STOP
2018-09-07Merge tag 'arc-4.19-rc3' of ↵Linus Torvalds27-113/+154
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC updates from Vineet Gupta: - Fix for atomic_fetch_#op [Will Deacon] - Enable per device IOC [Eugeniy Paltsev] - Remove redundant gcc version checks [Masahiro Yamada] - Miscll platform config/DT updates [Alexey Brodkin] * tag 'arc-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: don't check for HIGHMEM pages in arch_dma_alloc ARC: IOC: panic if both IOC and ZONE_HIGHMEM enabled ARC: dma [IOC] Enable per device io coherency ARC: dma [IOC]: mark DMA devices connected as dma-coherent ARC: atomics: unbork atomic_fetch_##op() arc: remove redundant GCC version checks ARC: sort Kconfig ARC: cleanup show_faulting_vma() ARC: [plat-axs*]: Enable SWAP ARC: [plat-axs*/plat-hsdk]: Allow U-Boot to pass MAC-address to the kernel ARC: configs: cleanup
2018-09-07afs: Fix cell specification to permit an empty address listDavid Howells1-8/+7
Fix the cell specification mechanism to allow cells to be pre-created without having to specify at least one address (the addresses will be upcalled for). This allows the cell information preload service to avoid the need to issue loads of DNS lookups during boot to get the addresses for each cell (500+ lookups for the 'standard' cell list[*]). The lookups can be done later as each cell is accessed through the filesystem. Also remove the print statement that prints a line every time a new cell is added. [*] There are 144 cells in the list. Each cell is first looked up for an SRV record, and if that fails, for an AFSDB record. These get a list of server names, each of which then has to be looked up to get the addresses for that server. E.g.: dig srv _afs3-vlserver._udp.grand.central.org Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-07Merge tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds4-9/+17
Pull MD fixes from Shaohua Li: - Fix a locking issue for md-cluster (Guoqing) - Fix a sync crash for raid10 (Ni) - Fix a reshape bug with raid5 cache enabled (me) * tag 'md/4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md-cluster: release RESYNC lock after the last resync message RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 md/raid5-cache: disable reshape completely
2018-09-07Merge tag 'ceph-for-4.19-rc3' of https://github.com/ceph/ceph-clientLinus Torvalds2-62/+189
Pull ceph fixes from Ilya Dryomov: "Two rbd patches to complete support for images within namespaces that went into -rc1 and a use-after-free fix. The rbd changes have been sitting in a branch for quite a while but couldn't be included into the -rc1 pull request because of a pending wire protocol backwards compatibility fixup that only got committed early this week" * tag 'ceph-for-4.19-rc3' of https://github.com/ceph/ceph-client: rbd: support cloning across namespaces rbd: factor out get_parent_info() ceph: avoid a use-after-free in ceph_destroy_options()
2018-09-07Merge tag 'for_v4.19-rc3' of ↵Linus Torvalds1-10/+3
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify fix from Jan Kara: "A small fsnotify fix from Amir" * tag 'for_v4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fsnotify: fix ignore mask logic in fsnotify()
2018-09-07Merge tag 'arm64-fixes' of ↵Linus Torvalds1-4/+6
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fix from Will Deacon: "Just one small fix here, preventing a VM_WARN_ON when a !present PMD/PUD is "freed" as part of a huge ioremap() operation. The correct behaviour is to skip the free silently in this case, which is a little weird (the function is a bit of a misnomer), but it follows the x86 implementation" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: fix erroneous warnings in page freeing functions
2018-09-07Merge tag 'acpi-4.19-rc3' of ↵Linus Torvalds2-7/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix a regression from the 4.18 cycle in the ACPI driver for Intel SoCs (LPSS) and prevent dmi_check_system() from being called on non-x86 systems in the ACPI core. Specifics: - Fix a power management regression in the ACPI driver for Intel SoCs (LPSS) introduced by a system-wide suspend/resume fix during the 4.18 cycle (Zhang Rui). - Prevent dmi_check_system() from being called on non-x86 systems in the ACPI core (Jean Delvare)" * tag 'acpi-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / LPSS: Force LPSS quirks on boot ACPI / bus: Only call dmi_check_system() on X86
2018-09-07Merge tag 'sound-4.19-rc3' of ↵Linus Torvalds3-18/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Just a few small fixes: - a fix for the recursive work cancellation in a specific HD-audio operation mode - a fix for potentially uninitialized memory access via rawmidi - the register bit access fixes for ASoC HD-audio" * tag 'sound-4.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Fix several mismatch for register mask and value ALSA: rawmidi: Initialize allocated buffers ALSA: hda - Fix cancel_work_sync() stall from jackpoll work
2018-09-07KVM: LAPIC: Fix pv ipis out-of-bounds accessWanpeng Li2-8/+21
Dan Carpenter reported that the untrusted data returns from kvm_register_read() results in the following static checker warning: arch/x86/kvm/lapic.c:576 kvm_pv_send_ipi() error: buffer underflow 'map->phys_map' 's32min-s32max' KVM guest can easily trigger this by executing the following assembly sequence in Ring0: mov $10, %rax mov $0xFFFFFFFF, %rbx mov $0xFFFFFFFF, %rdx mov $0, %rsi vmcall As this will cause KVM to execute the following code-path: vmx_handle_exit() -> handle_vmcall() -> kvm_emulate_hypercall() -> kvm_pv_send_ipi() which will reach out-of-bounds access. This patch fixes it by adding a check to kvm_pv_send_ipi() against map->max_apic_id, ignoring destinations that are not present and delivering the rest. We also check whether or not map->phys_map[min + i] is NULL since the max_apic_id is set to the max apic id, some phys_map maybe NULL when apic id is sparse, especially kvm unconditionally set max_apic_id to 255 to reserve enough space for any xAPIC ID. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Liran Alon <liran.alon@oracle.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Liran Alon <liran.alon@oracle.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> [Add second "if (min > map->max_apic_id)" to complete the fix. -Radim] Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-09-07KVM: nVMX: Fix loss of pending IRQ/NMI before entering L2Liran Alon1-0/+22
Consider the case L1 had a IRQ/NMI event until it executed VMLAUNCH/VMRESUME which wasn't delivered because it was disallowed (e.g. interrupts disabled). When L1 executes VMLAUNCH/VMRESUME, L0 needs to evaluate if this pending event should cause an exit from L2 to L1 or delivered directly to L2 (e.g. In case L1 don't intercept EXTERNAL_INTERRUPT). Usually this would be handled by L0 requesting a IRQ/NMI window by setting VMCS accordingly. However, this setting was done on VMCS01 and now VMCS02 is active instead. Thus, when L1 executes VMLAUNCH/VMRESUME we force L0 to perform pending event evaluation by requesting a KVM_REQ_EVENT. Note that above scenario exists when L1 KVM is about to enter L2 but requests an "immediate-exit". As in this case, L1 will disable-interrupts and then send a self-IPI before entering L2. Reviewed-by: Nikita Leshchenko <nikita.leshchenko@oracle.com> Co-developed-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-09-07Merge tag 'kvm-arm-fixes-for-v4.19-v2' of ↵Radim Krčmář9-52/+15
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm Fixes for KVM/ARM for Linux v4.19 v2: - Fix a VFP corruption in 32-bit guest - Add missing cache invalidation for CoW pages - Two small cleanups
2018-09-07Merge tag 'kvm-s390-master-4.19-1' of ↵Radim Krčmář243-1652/+2248
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux KVM: s390: Fixes for 4.19 - Fallout from the hugetlbfs support: pfmf interpretion and locking - VSIE: fix keywrapping for nested guests
2018-09-07arm64: KVM: Remove pgd_lockSteven Price1-2/+1
The lock has never been used and the page tables are protected by mmu_lock in struct kvm. Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
2018-09-07KVM: Remove obsolete kvm_unmap_hva notifier backendMarc Zyngier8-46/+0
kvm_unmap_hva is long gone, and we only have kvm_unmap_hva_range to deal with. Drop the now obsolete code. Fixes: fb1522e099f0 ("KVM: update to new mmu_notifier semantic v2") Cc: James Hogan <jhogan@kernel.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
2018-09-07arm64: KVM: Only force FPEXC32_EL2.EN if trapping FPSIMDMarc Zyngier1-3/+6
If trapping FPSIMD in the context of an AArch32 guest, it is critical to set FPEXC32_EL2.EN to 1 so that the trapping is taken to EL2 and not EL1. Conversely, it is just as critical *not* to set FPEXC32_EL2.EN to 1 if we're not going to trap FPSIMD, as we then corrupt the existing VFP state. Moving the call to __activate_traps_fpsimd32 to the point where we know for sure that we are going to trap ensures that we don't set that bit spuriously. Fixes: e6b673b741ea ("KVM: arm64: Optimise FPSIMD handling to reduce guest/host thrashing") Cc: stable@vger.kernel.org # v4.18 Cc: Dave Martin <dave.martin@arm.com> Reported-by: Alexander Graf <agraf@suse.de> Tested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
2018-09-07KVM: arm/arm64: Clean dcache to PoC when changing PTE due to CoWMarc Zyngier1-1/+8
When triggering a CoW, we unmap the RO page via an MMU notifier (invalidate_range_start), and then populate the new PTE using another one (change_pte). In the meantime, we'll have copied the old page into the new one. The problem is that the data for the new page is sitting in the cache, and should the guest have an uncached mapping to that page (or its MMU off), following accesses will bypass the cache. In a way, this is similar to what happens on a translation fault: We need to clean the page to the PoC before mapping it. So let's just do that. This fixes a KVM unit test regression observed on a HiSilicon platform, and subsequently reproduced on Seattle. Fixes: a9c0e12ebee5 ("KVM: arm/arm64: Only clean the dcache on translation fault") Cc: stable@vger.kernel.org # v4.16+ Reported-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
2018-09-07i2c: xiic: Record xilinx i2c with Zynq fragmentMichal Simek1-0/+1
Include xilinx soft i2c controller to Zynq fragment to make clear who is responsible for it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-09-07Merge branch 'acpi-bus'Rafael J. Wysocki1-6/+7
Merge ACPI core fix to avoid calling dmi_check_system() on non-x86. * acpi-bus: ACPI / bus: Only call dmi_check_system() on X86
2018-09-06Merge tag 'drm-fixes-2018-09-07' of git://anongit.freedesktop.org/drm/drmLinus Torvalds10-50/+120
Pull drm fixes from Dave Airlie: "Seems to have been overly quiet this week so I expect next week will be more stuff, just one pull from Rodrigo with i915 fixes in it. Quoting Rodrigo: 'The critical fix here on display side is the DP MST regression one. But this pull also include fixes for DP SST, small VDSC register fix and GVT's bucked with "BXT fixes, two guest warning fixes, dmabuf format mod fix and one for recent multiple VM timeout failure'." * tag 'drm-fixes-2018-09-07' of git://anongit.freedesktop.org/drm/drm: drm/i915/dp_mst: Fix enabling pipe clock for all streams drm/i915/dsc: Fix PPS register definition macros for 2nd VDSC engine drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse" drm/i915/gvt: Give new born vGPU higher scheduling chance drm/i915/gvt: Fix drm_format_mod value for vGPU plane drm/i915/gvt: move intel_runtime_pm_get out of spin_lock in stop_schedule drm/i915/gvt: Handle GEN9_WM_CHICKEN3 with F_CMD_ACCESS. drm/i915/gvt: Make correct handling to vreg BXT_PHY_CTL_FAMILY drm/i915/gvt: emulate gen9 dbuf ctl register access
2018-09-06Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu fix from Greg Ungerer: "A single change to fix booting on ColdFire platforms that have RAM starting at a non-0 address" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: fix early memory reservation for ColdFire MMU systems
2018-09-07Merge tag 'drm-intel-fixes-2018-09-05' of ↵Dave Airlie10-50/+120
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes The critical fix here on display side is the DP MST regression one. But this pull also include fixes for DP SST, small VDSC register fix and GVT's bucked with "BXT fixes, two guest warning fixes, dmabuf format mod fix and one for recent multiple VM timeout failure." Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180905183000.GA2151@intel.com
2018-09-06Merge tag 'mips_fixes_4.19_1' of ↵Linus Torvalds1-0/+20
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fix from Paul Burton: "A single fix for v4.19-rc3, resolving a problem with our VDSO data page for systems with dcache aliasing. Those systems could previously observe stale data, causing clock_gettime() & gettimeofday() to return incorrect values" * tag 'mips_fixes_4.19_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: VDSO: Match data page cache colouring when D$ aliases
2018-09-06Merge tag '4.19-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds6-19/+40
Pull cifs fixes from Steve French: "Four small SMB3 fixes, three for stable, and one minor debug clarification" * tag '4.19-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: connect to servername instead of IP for IPC$ share smb3: check for and properly advertise directory lease support smb3: minor debugging clarifications in rfc1001 len processing SMB3: Backup intent flag missing for directory opens with backupuid mounts fs/cifs: don't translate SFM_SLASH (U+F026) to backslash
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 04:13:58 +0000