- 03 Apr, 2019 2 commits
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Josh Poimboeuf authored
With CONFIG_PROFILE_ALL_BRANCHES=y, the "if" macro converts the conditional to an array index. This can cause GCC to create horrible code. When there are nested ifs, the generated code uses register values to encode branching decisions. Make it easier for GCC to optimize by keeping the conditional as a conditional rather than converting it to an integer. This shrinks the generated code quite a bit, and also makes the code sane enough for objtool to understand. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: brgerst@gmail.com Cc: catalin.marinas@arm.com Cc: dvlasenk@redhat.com Cc: dvyukov@google.com Cc: hpa@zytor.com Cc: james.morse@arm.com Cc: julien.thierry@arm.com Cc: luto@amacapital.net Cc: luto@kernel.org Cc: rostedt@goodmis.org Cc: valentin.schneider@arm.com Cc: will.deacon@arm.com Link: https://lkml.kernel.org/r/20190307174802.46fmpysxyo35hh43@trebleSigned-off-by: Ingo Molnar <mingo@kernel.org>
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Peter Zijlstra authored
Effectively reverts commit: 2c7577a7 ("sched/x86_64: Don't save flags on context switch") Specifically because SMAP uses FLAGS.AC which invalidates the claim that the kernel has clean flags. In particular; while preemption from interrupt return is fine (the IRET frame on the exception stack contains FLAGS) it breaks any code that does synchonous scheduling, including preempt_enable(). This has become a significant issue ever since commit: 5b24a7a2 ("Add 'unsafe' user access functions for batched accesses") provided for means of having 'normal' C code between STAC / CLAC, exposing the FLAGS.AC state. So far this hasn't led to trouble, however fix it before it comes apart. Reported-by: Julien Thierry <julien.thierry@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org Fixes: 5b24a7a2 ("Add 'unsafe' user access functions for batched accesses") Signed-off-by: Ingo Molnar <mingo@kernel.org>
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- 01 Apr, 2019 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull aio race fixes and cleanups from Al Viro. The aio code had more issues with error handling and races with the aio completing at just the right (wrong) time along with freeing the file descriptor when another thread closes the file. Just a couple of these commits are the actual fixes: the others are cleanups to either make the fixes simpler, or to make the code legible and understandable enough that we hope there's no more fundamental races hiding. * 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: aio: move sanity checks and request allocation to io_submit_one() deal with get_reqs_available() in aio_get_req() itself aio: move dropping ->ki_eventfd into iocb_destroy() make aio_read()/aio_write() return int Fix aio_poll() races aio: store event at final iocb_put() aio: keep io_event in aio_kiocb aio: fold lookup_kiocb() into its sole caller pin iocb through aio.
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull symlink fixes from Al Viro: "The ceph fix is already in mainline, Daniel's bpf fix is in bpf tree (1da6c4d9 "bpf: fix use after free in bpf_evict_inode"), the rest is in here" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: debugfs: fix use-after-free on symlink traversal ubifs: fix use-after-free on symlink traversal jffs2: fix use-after-free on symlink traversal
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Al Viro authored
symlink body shouldn't be freed without an RCU delay. Switch debugfs to ->destroy_inode() and use of call_rcu(); free both the inode and symlink body in the callback. Similar to solution for bpf, only here it's even more obvious that ->evict_inode() can be dropped. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
free the symlink body after the same RCU delay we have for freeing the struct inode itself, so that traversal during RCU pathwalk wouldn't step into freed memory. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
free the symlink body after the same RCU delay we have for freeing the struct inode itself, so that traversal during RCU pathwalk wouldn't step into freed memory. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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- 31 Mar, 2019 9 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM fixes from Paolo Bonzini: "A collection of x86 and ARM bugfixes, and some improvements to documentation. On top of this, a cleanup of kvm_para.h headers, which were exported by some architectures even though they not support KVM at all. This is responsible for all the Kbuild changes in the diffstat" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits) Documentation: kvm: clarify KVM_SET_USER_MEMORY_REGION KVM: doc: Document the life cycle of a VM and its resources KVM: selftests: complete IO before migrating guest state KVM: selftests: disable stack protector for all KVM tests KVM: selftests: explicitly disable PIE for tests KVM: selftests: assert on exit reason in CR4/cpuid sync test KVM: x86: update %rip after emulating IO x86/kvm/hyper-v: avoid spurious pending stimer on vCPU init kvm/x86: Move MSR_IA32_ARCH_CAPABILITIES to array emulated_msrs KVM: x86: Emulate MSR_IA32_ARCH_CAPABILITIES on AMD hosts kvm: don't redefine flags as something else kvm: mmu: Used range based flushing in slot_handle_level_range KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported KVM: x86: remove check on nr_mmu_pages in kvm_arch_commit_memory_region() kvm: nVMX: Add a vmentry check for HOST_SYSENTER_ESP and HOST_SYSENTER_EIP fields KVM: SVM: Workaround errata#1096 (insn_len maybe zero on SMAP violation) KVM: Reject device ioctls from processes other than the VM's creator KVM: doc: Fix incorrect word ordering regarding supported use of APIs KVM: x86: fix handling of role.cr4_pae and rename it to 'gpte_size' KVM: nVMX: Do not inherit quadrant and invalid for the root shadow EPT ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "A pile of x86 updates: - Prevent exceeding he valid physical address space in the /dev/mem limit checks. - Move all header content inside the header guard to prevent compile failures. - Fix the bogus __percpu annotation in this_cpu_has() which makes sparse very noisy. - Disable switch jump tables completely when retpolines are enabled. - Prevent leaking the trampoline address" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/realmode: Make set_real_mode_mem() static inline x86/cpufeature: Fix __percpu annotation in this_cpu_has() x86/mm: Don't exceed the valid physical address space x86/retpolines: Disable switch jump tables when retpolines are enabled x86/realmode: Don't leak the trampoline kernel address x86/boot: Fix incorrect ifdeffery scope x86/resctrl: Remove unused variable
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf tooling fixes from Thomas Gleixner: "Core libraries: - Fix max perf_event_attr.precise_ip detection. - Fix parser error for uncore event alias - Fixup ordering of kernel maps after obtaining the main kernel map address. Intel PT: - Fix TSC slip where A TSC packet can slip past MTC packets so that the timestamp appears to go backwards. - Fixes for exported-sql-viewer GUI conversion to python3. ARM coresight: - Fix the build by adding a missing case value for enumeration value introduced in newer library, that now is the required one. tool headers: - Syncronize kernel headers with the kernel, getting new io_uring and pidfd_send_signal syscalls so that 'perf trace' can handle them" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf pmu: Fix parser error for uncore event alias perf scripts python: exported-sql-viewer.py: Fix python3 support perf scripts python: exported-sql-viewer.py: Fix never-ending loop perf machine: Update kernel map address and re-order properly tools headers uapi: Sync powerpc's asm/kvm.h copy with the kernel sources tools headers: Update x86's syscall_64.tbl and uapi/asm-generic/unistd tools headers uapi: Update drm/i915_drm.h tools arch x86: Sync asm/cpufeatures.h with the kernel sources tools headers uapi: Sync linux/fcntl.h to get the F_SEAL_FUTURE_WRITE addition tools headers uapi: Sync asm-generic/mman-common.h and linux/mman.h perf evsel: Fix max perf_event_attr.precise_ip detection perf intel-pt: Fix TSC slip perf cs-etm: Add missing case value
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull CPU hotplug fixes from Thomas Gleixner: "Two SMT/hotplug related fixes: - Prevent crash when HOTPLUG_CPU is disabled and the CPU bringup aborts. This is triggered with the 'nosmt' command line option, but can happen by any abort condition. As the real unplug code is not compiled in, prevent the fail by keeping the CPU in zombie state. - Enforce HOTPLUG_CPU for SMP on x86 to avoid the above situation completely. With 'nosmt' being a popular option it's required to unplug the half brought up sibling CPUs (due to the MCE wreckage) completely" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/smp: Enforce CONFIG_HOTPLUG_CPU when SMP=y cpu/hotplug: Prevent crash when CPU bringup fails on CONFIG_HOTPLUG_CPU=n
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fixlet from Thomas Gleixner: "Trivial update to the maintainers file" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Remove deleted file from futex file pattern
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core fixes from Thomas Gleixner: "A small set of core updates: - Make the watchdog respect the selected CPU mask again. That was broken by the rework of the watchdog thread management and caused inconsistent state and NMI watchdog being unstoppable. - Ensure that the objtool build can find the libelf location. - Remove dead kcore stub code" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: watchdog: Respect watchdog cpumask on CPU hotplug objtool: Query pkg-config for libelf location proc/kcore: Remove unused kclist_add_remap()
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "Three non-regression fixes. - Our optimised memcmp could read past the end of one of the buffers and potentially trigger a page fault leading to an oops. - Some of our code to read energy management data on PowerVM had an endian bug leading to bogus results. - When reporting a machine check exception we incorrectly reported TLB multihits as D-Cache multhits due to a missing entry in the array of causes. Thanks to: Chandan Rajendra, Gautham R. Shenoy, Mahesh Salgaonkar, Segher Boessenkool, Vaidyanathan Srinivasan" * tag 'powerpc-5.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/pseries/mce: Fix misleading print for TLB mutlihit powerpc/pseries/energy: Use OF accessor functions to read ibm,drc-indexes powerpc/64: Fix memcmp reading past the end of src/dest
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git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds authored
Pull dmaengine fixes from Vinod Koul: - Revert "dmaengine: stm32-mdma: Add a check on read_u32_array" as that caused regression - Fix MAINTAINER file uniphier-mdmac.c file path * tag 'dmaengine-fix-5.1-rc3' of git://git.infradead.org/users/vkoul/slave-dma: MAINTAINERS: Fix uniphier-mdmac.c file path dmaengine: stm32-mdma: Revert "dmaengine: stm32-mdma: Add a check on read_u32_array"
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- 30 Mar, 2019 10 commits
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Linus Torvalds authored
Merge tag 'led-fixes-for-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED fixes from Jacek Anaszewski: - fix refcnt leak on interface rename - use memcpy in device_name_store() to avoid including garbage from a previous, longer value in the device_name - fix a potential NULL pointer dereference in case of_match_device() cannot find a match * tag 'led-fixes-for-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: trigger: netdev: use memcpy in device_name_store leds: pca9532: fix a potential NULL pointer dereference leds: trigger: netdev: fix refcnt leak on interface rename
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO fixes from Linus Walleij: "As you can see [in the git history] I was away on leave and Bartosz kindly stepped in and collected a slew of fixes, I pulled them into my tree in two sets and merged some two more fixes (fixing my own caused bugs) on top. Summary: - Revert the extended use of gpio_set_config() and think about how we can do this properly. - Fix up the SPI CS GPIO handling so it now works properly on the SPI bus children, as intended. - Error paths and driver fixes" * tag 'gpio-v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: mockup: use simple_read_from_buffer() in debugfs read callback gpio: of: Fix of_gpiochip_add() error path gpio: of: Check for "spi-cs-high" in child instead of parent node gpio: of: Check propname before applying "cs-gpios" quirks gpio: mockup: fix debugfs read Revert "gpio: use new gpio_set_config() helper in more places" gpio: aspeed: fix a potential NULL pointer dereference gpio: amd-fch: Fix bogus SPDX identifier gpio: adnp: Fix testing wrong value in adnp_gpio_direction_input gpio: exar: add a check for the return value of ida_simple_get fails
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Rasmus Villemoes authored
If userspace doesn't end the input with a newline (which can easily happen if the write happens from a C program that does write(fd, iface, strlen(iface))), we may end up including garbage from a previous, longer value in the device_name. For example # cat device_name # printf 'eth12' > device_name # cat device_name eth12 # printf 'eth3' > device_name # cat device_name eth32 I highly doubt anybody is relying on this behaviour, so switch to simply copying the bytes (we've already checked that size is < IFNAMSIZ) and unconditionally zero-terminate it; of course, we also still have to strip a trailing newline. This is also preparation for future patches. Fixes: 06f502f5 ("leds: trigger: Introduce a NETDEV trigger") Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Kangjie Lu authored
In case of_match_device cannot find a match, return -EINVAL to avoid NULL pointer dereference. Fixes: fa4191a6 ("leds: pca9532: Add device tree support") Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver fixes from Greg KH: "Here are some small staging driver fixes for 5.1-rc3, and one driver removal. The biggest thing here is the removal of the mt7621-eth driver as a "real" network driver was merged in 5.1-rc1 for this hardware, so this old driver can now be removed. Other than that, there are just a number of small fixes, all resolving reported issues and some potential corner cases for error handling paths. All of these have been in linux-next with no reported issues" * tag 'staging-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: vt6655: Remove vif check from vnt_interrupt staging: erofs: keep corrupted fs from crashing kernel in erofs_readdir() staging: octeon-ethernet: fix incorrect PHY mode staging: vc04_services: Fix an error code in vchiq_probe() staging: erofs: fix error handling when failed to read compresssed data staging: vt6655: Fix interrupt race condition on device start up. staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc staging: rtl8712: uninitialized memory in read_bbreg_hdl() staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference staging: rtl8188eu: Fix potential NULL pointer dereference of kcalloc staging, mt7621-pci: fix build without pci support staging: speakup_soft: Fix alternate speech with other synths staging: axis-fifo: add CONFIG_OF dependency staging: olpc_dcon_xo_1: add missing 'const' qualifier staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest staging: erofs: fix to handle error path of erofs_vmap() staging: mt7621-dts: update ethernet settings. staging: remove mt7621-eth
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial fixes from Greg KH: "Here are some small tty and serial driver fixes for 5.1-rc3. Nothing major here, just a number of potential problems fixes for error handling paths, as well as some other minor bugfixes for reported issues with 5.1-rc1. All of these have been in linux-next with no reported issues" * tag 'tty-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: fix NULL pointer issue when tty_port ops is not set Disable kgdboc failed by echo space to /sys/module/kgdboc/parameters/kgdboc dt-bindings: serial: Add compatible for Mediatek MT8183 tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped tty/serial: atmel: Add is_half_duplex helper serial: sh-sci: Fix setting SCSCR_TIE while transferring data serial: ar933x_uart: Fix build failure with disabled console tty: serial: qcom_geni_serial: Initialize baud in qcom_geni_console_setup sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() tty: mxs-auart: fix a potential NULL pointer dereference tty: atmel_serial: fix a potential NULL pointer dereference serial: max310x: Fix to avoid potential NULL pointer dereference serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some small USB fixes for 5.1-rc3. Nothing major at all here, just a small collection of fixes for reported issues, and potential problems with error handling paths. Also a few new device ids, as normal. All of these have been in linux-next with no reported issues" * tag 'usb-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits) USB: serial: option: add Olicard 600 USB: serial: cp210x: add new device id usb: u132-hcd: fix resource leak usb: cdc-acm: fix race during wakeup blocking TX traffic usb: mtu3: fix EXTCON dependency usb: usb251xb: fix to avoid potential NULL pointer dereference usb: core: Try generic PHY_MODE_USB_HOST if usb_phy_roothub_set_mode fails phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs xhci: Don't let USB3 ports stuck in polling state prevent suspend usb: xhci: dbc: Don't free all memory with spinlock held xhci: Fix port resume done detection for SS ports with LPM enabled USB: serial: mos7720: fix mos_parport refcount imbalance on error path USB: gadget: f_hid: fix deadlock in f_hidg_write() usb: gadget: net2272: Fix net2272_dequeue() usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2280: Fix overrun of OUT messages usb: dwc3: pci: add support for Comet Lake PCH ID usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0 usb: common: Consider only available nodes for dr_mode usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fix from Rafael Wysocki: "This corrects a previous attempt to make Linux use its own set of ACPI debug flags different from the upstream ACPICA's default (Erik Schmauss)" * tag 'acpi-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: use different default debug value than ACPICA
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael Wysocki: "These fix CPU base frequency reporting in the intel_pstate driver and a use-after-free in the scpi-cpufreq driver. Specifics: - Fix the ACPI CPPC library to actually follow the specification when decoding the guaranteed performance register information and make the intel_pstate driver to fall back to the nominal frequency when reporting the base frequency if the guaranteed performance register information is not there (Srinivas Pandruvada). - Fix use-after-free in the exit callback of the scpi-cpufreq left after an update during the 5.0 development cycle (Vincent Stehlé)" * tag 'pm-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: scpi: Fix use after free cpufreq: intel_pstate: Also use CPPC nominal_perf for base_frequency ACPI / CPPC: Fix guaranteed performance handling
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull security layer fixes from James Morris: "Yama and LSM config fixes" * 'fixes-v5.1-a' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: LSM: Revive CONFIG_DEFAULT_SECURITY_* for "make oldconfig" Yama: mark local symbols as static
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- 29 Mar, 2019 14 commits
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "22 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits) fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links fs: fs_parser: fix printk format warning checkpatch: add %pt as a valid vsprintf extension mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate drivers/block/zram/zram_drv.c: fix idle/writeback string compare mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate() mm/memory_hotplug.c: fix notification in offline error path ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK fs/proc/kcore.c: make kcore_modules static include/linux/list.h: fix list_is_first() kernel-doc mm/debug.c: fix __dump_page when mapping->host is not set mm: mempolicy: make mbind() return -EIO when MPOL_MF_STRICT is specified include/linux/hugetlb.h: convert to use vm_fault_t iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging mm: add support for kmem caches in DMA32 zone ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock mm/hotplug: fix offline undo_isolate_page_range() fs/open.c: allow opening only regular files during execve() mailmap: add Changbin Du mm/debug.c: add a cast to u64 for atomic64_read() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fix from Catalin Marinas: "Use memblock_alloc() instead of memblock_alloc_low() in request_standard_resources(), the latter being limited to the low 4G memory range on arm64" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: replace memblock_alloc_low with memblock_alloc
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull IOMMU fixes from Joerg Roedel: - Fix a bug in the AMD IOMMU driver not handling exclusion ranges correctly. In fact the driver did not reserve these ranges for IOVA allocations, so that dma-handles could be allocated in an exclusion range, leading to data corruption. Exclusion ranges have not been used by any firmware up to now, so this issue remained undiscovered for quite some time. - Fix wrong warning messages that the IOMMU core code prints when it tries to allocate the default domain for an iommu group and the driver does not support any of the default domain types (like Intel VT-d). * tag 'iommu-fixes-v5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: Reserve exclusion range in iova-domain iommu: Don't print warning when IOMMU driver only supports unmanaged domains
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core fix from Greg KH: "Here is a single driver core patch for 5.1-rc3. After 5.1-rc1, all of the users of BUS_ATTR() are finally removed, so we can now drop this macro from include/linux/device.h so that no more new users will be created. This patch has been in linux-next for a while, with no reported issues" * tag 'driver-core-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: remove BUS_ATTR()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are some binder, habanalabs, and vboxguest driver fixes for 5.1-rc3. The Binder fixes resolve some reported issues found by testing, first by the selinux developers, and then earlier today by syzbot. The habanalabs fixes are all minor, resolving a number of tiny things. The vboxguest patches are a bit larger. They resolve the fact that virtual box decided to change their api in their latest release in a way that broke the existing kernel code, despite saying that they were never going to do that. So this is a bit of a "new feature", but is good to get merged so that 5.1 will work with the latest release. The changes are not large and of course virtual box "swears" they will not break this again, but no one is holding their breath here. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: virt: vbox: Implement passing requestor info to the host for VirtualBox 6.0.x binder: fix race between munmap() and direct reclaim binder: fix BUG_ON found by selinux-testsuite habanalabs: cast to expected type habanalabs: prevent host crash during suspend/resume habanalabs: perform accounting for active CS habanalabs: fix mapping with page size bigger than 4KB habanalabs: complete user context cleanup before hard reset habanalabs: fix bug when mapping very large memory area habanalabs: fix MMU number of pages calculation
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "Thirteen fixes, seven of which are for IBM fibre channel and three additional for fairly serious bugs in drivers (qla2xxx, mpt3sas, aacraid). Of the three core fixes, the most significant is probably the missed run queue causing an indefinite hang. The others are fixing a potential use after free on device close and silencing an incorrect warning" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ibmvfc: Clean up transport events scsi: ibmvfc: Byte swap status and error codes when logging scsi: ibmvfc: Add failed PRLI to cmd_status lookup array scsi: ibmvfc: Remove "failed" from logged errors scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN scsi: zfcp: fix scsi_eh host reset with port_forced ERP for non-NPIV FCP devices scsi: zfcp: fix rport unblock if deleted SCSI devices on Scsi_Host scsi: sd: Quiesce warning if device does not report optimal I/O size scsi: sd: Fix a race between closing an sd device and sd I/O scsi: core: Run queue when state is set to running after being blocked scsi: qla4xxx: fix a potential NULL pointer dereference scsi: aacraid: Insure we don't access PCIe space during AER/EEH scsi: mpt3sas: Fix kernel panic during expander reset
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c fixes from Wolfram Sang: "A new ID for the i801 driver and some Documentation fixes to make it easier for people to find the bindings (which is also a basis for further improvements in that area)" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: wmt: make bindings file name match the driver i2c: sun6i-p2wi: make bindings file name match the driver i2c: stu300: make bindings file name match the driver i2c: mt65xx: make bindings file name match the driver i2c: iop3xx: make bindings file name match the driver i2c: i801: Add support for Intel Comet Lake
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "The important fixes at this time are a couple fixes in ALSA core: a fix for PCM is about the OOB access in PCM OSS plugins that has been for long time, but hasn't hit so often until now just because we allocated a large buffer via vmalloc(), and surfaced more often after switching to kvmalloc(). Another fix is for a long-standing PCM problem wrt racy PM resume. Others are trivial nospec coverage and usual HD-audio quirks" * tag 'sound-5.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Fix speakers on Acer Predator Helios 500 Ryzen laptops ALSA: pcm: Don't suspend stream in unrecoverable PCM state ALSA: hda/ca0132 - Simplify alt firmware loading code ALSA: pcm: Fix possible OOB access in PCM oss plugins ALSA: hda/realtek: Enable headset MIC of ASUS X430UN and X512DK with ALC256 ALSA: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256 ALSA: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256 ALSA: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic ALSA: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286 ALSA: seq: oss: Fix Spectre v1 vulnerability ALSA: rawmidi: Fix potential Spectre v1 vulnerability
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Linus Torvalds authored
Merge tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Remove harmful -Oz option of Clang - Get back the original behavior (no recursion for in-tree build) for GNU Make 4.x - Some minor fixes for coccinelle patches - Do not overwrite .gitignore in the output directory in case it is version-controlled - Fix missed record-mcount bug for dynamic ftrace - Fix endianness bug in modversions for relative CRC - Cater to '^H' key code in Kconfig ncurses programs * tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig/[mn]conf: handle backspace (^H) key kbuild: modversions: Fix relative CRC byte order interpretation scripts: coccinelle: Fix description of badty.cocci kbuild: strip whitespace in cmd_record_mcount findstring kbuild: do not overwrite .gitignore in output directory kbuild: skip parsing pre sub-make code for recursion coccinelle: put_device: reduce false positives kbuild: skip sub-make for in-tree build with GNU Make 4.x Revert "kbuild: use -Oz instead of -Os when using clang"
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Small set of fixes that should go into this series. This contains: - compat signal mask fix for io_uring (Arnd) - EAGAIN corner case for direct vs buffered writes for io_uring (Roman) - NVMe pull request from Christoph with various little fixes - sbitmap ws_active fix, which caused a perf regression for shared tags (me) - sbitmap bit ordering fix (Ming) - libata on-stack DMA fix (Raymond)" * tag 'for-linus-20190329' of git://git.kernel.dk/linux-block: nvmet: fix error flow during ns enable nvmet: fix building bvec from sg list nvme-multipath: relax ANA state check nvme-tcp: fix an endianess miss-annotation libata: fix using DMA buffers on stack io_uring: offload write to async worker in case of -EAGAIN sbitmap: order READ/WRITE freed instance and setting clear bit blk-mq: fix sbitmap ws_active for shared tags io_uring: fix big-endian compat signal mask handling blk-mq: update comment for blk_mq_hctx_has_pending() blk-mq: use blk_mq_put_driver_tag() to put tag
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git://github.com/ceph/ceph-clientLinus Torvalds authored
Pull ceph fixes from Ilya Dryomov: "A patch to avoid choking on multipage bvecs in the messenger and a small use-after-free fix" * tag 'ceph-for-5.1-rc3' of git://github.com/ceph/ceph-client: ceph: fix use-after-free on symlink traversal libceph: fix breakage caused by multipage bvecs
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Darrick Wong: "Here are a few fixes for some corruption bugs and uninitialized variable problems. The few patches here have gone through a few days worth of fstest runs with no new problems observed. Changes since last update: - Fix a bunch of static checker complaints about uninitialized variables and insufficient range checks. - Avoid a crash when incore extent map data are corrupt. - Disallow FITRIM when we haven't recovered the log and know the metadata are stale. - Fix a data corruption when doing unaligned overlapping dio writes" * tag 'xfs-5.1-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: serialize unaligned dio writes against all other dio writes xfs: prohibit fstrim in norecovery mode xfs: always init bma in xfs_bmapi_write xfs: fix btree scrub checking with regards to root-in-inode xfs: dabtree scrub needs to range-check level xfs: don't trip over uninitialized buffer on extent read of corrupted inode
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Kees Cook authored
Commit 70b62c25 ("LoadPin: Initialize as ordered LSM") removed CONFIG_DEFAULT_SECURITY_{SELINUX,SMACK,TOMOYO,APPARMOR,DAC} from security/Kconfig and changed CONFIG_LSM to provide a fixed ordering as a default value. That commit expected that existing users (upgrading from Linux 5.0 and earlier) will edit CONFIG_LSM value in accordance with their CONFIG_DEFAULT_SECURITY_* choice in their old kernel configs. But since users might forget to edit CONFIG_LSM value, this patch revives the choice (only for providing the default value for CONFIG_LSM) in order to make sure that CONFIG_LSM reflects CONFIG_DEFAULT_SECURITY_* from their old kernel configs. Note that since TOMOYO can be fully stacked against the other legacy major LSMs, when it is selected, it explicitly disables the other LSMs to avoid them also initializing since TOMOYO does not expect this currently. Reported-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Fixes: 70b62c25 ("LoadPin: Initialize as ordered LSM") Co-developed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: James Morris <james.morris@microsoft.com>
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Thomas Gleixner authored
Merge tag 'perf-urgent-for-mingo-5.1-20190329' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo: Core libraries: Jiri Olsa: - Fix max perf_event_attr.precise_ip detection. Kan Liang: - Fix parser error for uncore event alias Wei Lin: - Fixup ordering of kernel maps after obtaining the main kernel map address. Intel PT: Adrian Hunter: - Fix TSC slip where A TSC packet can slip past MTC packets so that the timestamp appears to go backwards. - Fixes for exported-sql-viewer GUI conversion to python3. ARM coresight: Solomon Tan: - Fix the build by adding a missing case value for enumeration value introduced in newer library, that now is the required one. tool headers: Arnaldo Carvalho de Melo: - Syncronize kernel headers with the kernel, getting new io_uring and pidfd_send_signal syscalls so that 'perf trace' can handle them. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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