- 09 Apr, 2018 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Martin Schwidefsky: - Improvements for the spectre defense: * The spectre related code is consolidated to a single file nospec-branch.c * Automatic enable/disable for the spectre v2 defenses (expoline vs. nobp) * Syslog messages for specve v2 are added * Enable CONFIG_GENERIC_CPU_VULNERABILITIES and define the attribute functions for spectre v1 and v2 - Add helper macros for assembler alternatives and use them to shorten the code in entry.S. - Add support for persistent configuration data via the SCLP Store Data interface. The H/W interface requires a page table that uses 4K pages only, the code to setup such an address space is added as well. - Enable virtio GPU emulation in QEMU. To do this the depends statements for a few common Kconfig options are modified. - Add support for format-3 channel path descriptors and add a binary sysfs interface to export the associated utility strings. - Add a sysfs attribute to control the IFCC handling in case of constant channel errors. - The vfio-ccw changes from Cornelia. - Bug fixes and cleanups. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (40 commits) s390/kvm: improve stack frame constants in entry.S s390/lpp: use assembler alternatives for the LPP instruction s390/entry.S: use assembler alternatives s390: add assembler macros for CPU alternatives s390: add sysfs attributes for spectre s390: report spectre mitigation via syslog s390: add automatic detection of the spectre defense s390: move nobp parameter functions to nospec-branch.c s390/cio: add util_string sysfs attribute s390/chsc: query utility strings via fmt3 channel path descriptor s390/cio: rename struct channel_path_desc s390/cio: fix unbind of io_subchannel_driver s390/qdio: split up CCQ handling for EQBS / SQBS s390/qdio: don't retry EQBS after CCQ 96 s390/qdio: restrict buffer merging to eligible devices s390/qdio: don't merge ERROR output buffers s390/qdio: simplify math in get_*_buffer_frontier() s390/decompressor: trim uncompressed image head during the build s390/crypto: Fix kernel crash on aes_s390 module remove. s390/defkeymap: fix global init to zero ...
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- 07 Apr, 2018 17 commits
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Linus Torvalds authored
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull integrity updates from James Morris: "A mixture of bug fixes, code cleanup, and continues to close IMA-measurement, IMA-appraisal, and IMA-audit gaps. Also note the addition of a new cred_getsecid LSM hook by Matthew Garrett: For IMA purposes, we want to be able to obtain the prepared secid in the bprm structure before the credentials are committed. Add a cred_getsecid hook that makes this possible. which is used by a new CREDS_CHECK target in IMA: In ima_bprm_check(), check with both the existing process credentials and the credentials that will be committed when the new process is started. This will not change behaviour unless the system policy is extended to include CREDS_CHECK targets - BPRM_CHECK will continue to check the same credentials that it did previously" * 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: ima: Fallback to the builtin hash algorithm ima: Add smackfs to the default appraise/measure list evm: check for remount ro in progress before writing ima: Improvements in ima_appraise_measurement() ima: Simplify ima_eventsig_init() integrity: Remove unused macro IMA_ACTION_RULE_FLAGS ima: drop vla in ima_audit_measurement() ima: Fix Kconfig to select TPM 2.0 CRB interface evm: Constify *integrity_status_msg[] evm: Move evm_hmac and evm_hash from evm_main.c to evm_crypto.c fuse: define the filesystem as untrusted ima: fail signature verification based on policy ima: clear IMA_HASH ima: re-evaluate files on privileged mounted filesystems ima: fail file signature verification on non-init mounted filesystems IMA: Support using new creds in appraisal policy security: Add a cred_getsecid hook
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull TPM updates from James Morris: "This release contains only bug fixes. There are no new major features added" * 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: tpm: fix intermittent failure with self tests tpm: add retry logic tpm: self test failure should not cause suspend to fail tpm2: add longer timeouts for creation commands. tpm_crb: use __le64 annotated variable for response buffer address tpm: fix buffer type in tpm_transmit_cmd tpm: tpm-interface: fix tpm_transmit/_cmd kdoc tpm: cmd_ready command can be issued only after granting locality
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull smack update from James Morris: "One small change for Automotive Grade Linux" * 'next-smack' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: Smack: Handle CGROUP2 in the same way that CGROUP
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull alpha syscall cleanups from Al Viro: "A couple of SYSCALL_DEFINE conversions and removal of pointless (and bitrotted) piece stuck in ret_from_kernel_thread since the kernel_exceve/kernel_thread conversions six years ago" * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: alpha: get rid of pointless insn in ret_from_kernel_thread alpha: switch pci syscalls to SYSCALL_DEFINE
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull sparc syscall cleanups from Al Viro: "sparc syscall stuff - killing pointless wrappers, conversions to {COMPAT_,}SYSCALL_DEFINE" * 'misc.sparc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: sparc: get rid of asm wrapper for nis_syscall() sparc: switch compat {f,}truncate64() to COMPAT_SYSCALL_DEFINE sparc: switch compat pread64 and pwrite64 to COMPAT_SYSCALL_DEFINE convert compat sync_file_range() to COMPAT_SYSCALL_DEFINE switch sparc_remap_file_pages() to SYSCALL_DEFINE sparc: get rid of memory_ordering(2) wrapper sparc: trivial conversions to {COMPAT_,}SYSCALL_DEFINE() sparc: bury a zombie extern that had been that way for twenty years sparc: get rid of remaining SIGN... wrappers sparc: kill useless SIGN... wrappers sparc: get rid of sys_sparc_pipe() wrappers
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Linus Torvalds authored
Joe Perches noted that we have a few source files that for some inexplicable reason (read: I'm too lazy to even go look at the history) are marked executable: drivers/gpu/drm/amd/amdgpu/vce_v4_0.c drivers/net/ethernet/cadence/macb_ptp.c A simple git command line to show executable C/asm/header files is this: git ls-files -s '*.[chsS]' | grep '^100755' and then you can fix them up with scripting by just feeding that output into: | cut -f2 | xargs chmod -x and commit it. Which is exactly what this commit does. Reported-by:
Joe Perches <joe@perches.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c updates from Wolfram Sang: -I2C core now reports proper OF style module alias. I'd like to repeat the note from the commit msg here (Thanks, Javier!): NOTE: This patch may break out-of-tree drivers that were relying on this behavior, and only had an I2C device ID table even when the device was registered via OF. There are no remaining drivers in mainline that do this, but out-of-tree drivers have to be fixed and define a proper OF device ID table to have module auto-loading working. - new driver for the SynQuacer I2C controller - major refactoring of the QUP driver - the piix4 driver now uses request_muxed_region which should fix a long standing resource conflict with the sp5100_tco watchdog - a bunch of small core & driver improvements * 'i2c/for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (53 commits) i2c: add support for Socionext SynQuacer I2C controller dt-bindings: i2c: add binding for Socionext SynQuacer I2C i2c: Update i2c_trace_msg static key to modern api i2c: fix parameter of trace_i2c_result i2c: imx: avoid taking clk_prepare mutex in PM callbacks i2c: imx: use clk notifier for rate changes i2c: make i2c_check_addr_validity() static i2c: rcar: fix mask value of prohibited bit dt-bindings: i2c: document R8A77965 bindings i2c: pca-platform: drop gpio from platform data i2c: pca-platform: use device_property_read_u32 i2c: pca-platform: unconditionally use devm_gpiod_get_optional sh: sh7785lcr: add GPIO lookup table for i2c controller reset i2c: qup: reorganization of driver code to remove polling for qup v2 i2c: qup: reorganization of driver code to remove polling for qup v1 i2c: qup: send NACK for last read sub transfers i2c: qup: fix buffer overflow for multiple msg of maximum xfer len i2c: qup: change completion timeout according to transfer length i2c: qup: use the complete transfer length to choose DMA mode i2c: qup: proper error handling for i2c error in BAM mode ...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: "Notable changes: - Support for 4PB user address space on 64-bit, opt-in via mmap(). - Removal of POWER4 support, which was accidentally broken in 2016 and no one noticed, and blocked use of some modern instructions. - Workarounds so that the hypervisor can enable Transactional Memory on Power9. - A series to disable the DAWR (Data Address Watchpoint Register) on Power9. - More information displayed in the meltdown/spectre_v1/v2 sysfs files. - A vpermxor (Power8 Altivec) implementation for the raid6 Q Syndrome. - A big series to make the allocation of our pacas (per cpu area), kernel page tables, and per-cpu stacks NUMA aware when using the Radix MMU on Power9. And as usual many fixes, reworks and cleanups. Thanks to: Aaro Koskinen, Alexandre Belloni, Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Aneesh Kumar K.V, Anshuman Khandual, Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe Lombard, Cyril Bur, Daniel Axtens, Dave Young, Finn Thain, Frederic Barrat, Gustavo Romero, Horia Geantă, Jonathan Neuschäfer, Kees Cook, Larry Finger, Laurent Dufour, Laurent Vivier, Logan Gunthorpe, Madhavan Srinivasan, Mark Greer, Mark Hairgrove, Markus Elfring, Mathieu Malaterre, Matt Brown, Matt Evans, Mauricio Faria de Oliveira, Michael Neuling, Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud, Ram Pai, Rob Herring, Sam Bobroff, Segher Boessenkool, Simon Guo, Simon Horman, Stewart Smith, Sukadev Bhattiprolu, Suraj Jitindar Singh, Thiago Jung Bauermann, Vaibhav Jain, Vaidyanathan Srinivasan, Vasant Hegde, Wei Yongjun" * tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (207 commits) powerpc/64s/idle: Fix restore of AMOR on POWER9 after deep sleep powerpc/64s: Fix POWER9 DD2.2 and above in cputable features powerpc/64s: Fix pkey support in dt_cpu_ftrs, add CPU_FTR_PKEY bit powerpc/64s: Fix dt_cpu_ftrs to have restore_cpu clear unwanted LPCR bits Revert "powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead" powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo} powerpc: io.h: move iomap.h include so that it can use readq/writeq defs cxl: Fix possible deadlock when processing page faults from cxllib powerpc/hw_breakpoint: Only disable hw breakpoint if cpu supports it powerpc/mm/radix: Update command line parsing for disable_radix powerpc/mm/radix: Parse disable_radix commandline correctly. powerpc/mm/hugetlb: initialize the pagetable cache correctly for hugetlb powerpc/mm/radix: Update pte fragment count from 16 to 256 on radix powerpc/mm/keys: Update documentation and remove unnecessary check powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead powerpc/64s/idle: Consolidate power9_offline_stop()/power9_idle_stop() powerpc/powernv: Always stop secondaries before reboot/shutdown powerpc: hard disable irqs in smp_send_stop loop powerpc: use NMI IPI for smp_send_stop powerpc/powernv: Fix SMT4 forcing idle code ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaksLinus Torvalds authored
Pull leaking-addresses updates from Tobin Harding: "This set represents improvements to the scripts/leaking_addresses.pl script. The major improvement is that with this set applied the script actually runs in a reasonable amount of time (less than a minute on a standard stock Ubuntu user desktop). Also, we have a second maintainer now and a tree hosted on kernel.org We do a few code clean ups. We fix the command help output. Handling of the vsyscall address range is fixed to check the whole range instead of just the start/end addresses. We add support for 5 page table levels (suggested on LKML). We use a system command to get the machine architecture instead of using Perl. Calling this command for every regex comparison is what previously choked the script, caching the result of this call gave the major speed improvement. We add support for scanning 32-bit kernels using the user/kernel memory split. Path skipping code refactored and simplified (meaning easier script configuration). We remove version numbering. We add a variable name to improve readability of a regex and finally we check filenames for leaking addresses. Currently script scans /proc/PID for all PID. With this set applied we only scan for PID==1. It was observed that on an idle system files under /proc/PID are predominantly the same for all processes. Also it was noted that the script does not scan _all_ the kernel since it only scans active processes. Scanning only for PID==1 makes explicit the inherent flaw in the script that the scan is only partial and also speeds things up" * tag 'leaks-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tobin/leaks: MAINTAINERS: Update LEAKING_ADDRESSES leaking_addresses: check if file name contains address leaking_addresses: explicitly name variable used in regex leaking_addresses: remove version number leaking_addresses: skip '/proc/1/syscall' leaking_addresses: skip all /proc/PID except /proc/1 leaking_addresses: cache architecture name leaking_addresses: simplify path skipping leaking_addresses: do not parse binary files leaking_addresses: add 32-bit support leaking_addresses: add is_arch() wrapper subroutine leaking_addresses: use system command to get arch leaking_addresses: add support for 5 page table levels leaking_addresses: add support for kernel config file leaking_addresses: add range check for vsyscall memory leaking_addresses: indent dependant options leaking_addresses: remove command examples leaking_addresses: remove mention of kptr_restrict leaking_addresses: fix typo function not called
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Linus Torvalds authored
Merge tag 'linux-kselftest-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest update from Shuah Khan: "This Kselftest update for 4.17-rc1 consists of: - Test build error fixes - Fixes to prevent intel_pstate from building on non-x86 systems. - New test for ion with vgem driver. - Change to print the test name to /dev/kmsg to add context to kernel failures if any uncovered from running the test. - Kselftest framework enhancements to add KSFT_TAP_LEVEL environment variable to prevent nested TAP headers being printed in the Kselftest output. Nested TAP13 headers could cause problems for some parsers. This change suppresses the nested headers from test programs and test shell scripts with changes to framework and Makefiles without changing the tests" * tag 'linux-kselftest-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/intel_pstate: Fix build rule for x86 selftests: Print the test we're running to /dev/kmsg selftests/seccomp: Allow get_metadata to XFAIL selftests/android/ion: Makefile: fix build error selftests: futex Makefile add top level TAP header echo to RUN_TESTS selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP headers selftests: lib.mk set KSFT_TAP_LEVEL to prevent nested TAP headers selftests: kselftest framework: add handling for TAP header level selftests: ion: Add simple test with the vgem driver selftests: ion: Remove some prints
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull general security layer updates from James Morris: - Convert security hooks from list to hlist, a nice cleanup, saving about 50% of space, from Sargun Dhillon. - Only pass the cred, not the secid, to kill_pid_info_as_cred and security_task_kill (as the secid can be determined from the cred), from Stephen Smalley. - Close a potential race in kernel_read_file(), by making the file unwritable before calling the LSM check (vs after), from Kees Cook. * 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: security: convert security hooks to use hlist exec: Set file unwritable before LSM check usb, signal, security: only pass the cred, not the secid, to kill_pid_info_as_cred and security_task_kill
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Linus Torvalds authored
Merge tag 'fscache-next-20180406' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull fscache updates from David Howells: "Three patches that fix some of AFS's usage of fscache: (1) Need to invalidate the cache if a foreign data change is detected on the server. (2) Move the vnode ID uniquifier (equivalent to i_generation) from the auxiliary data to the index key to prevent a race between file delete and a subsequent file create seeing the same index key. (3) Need to retire cookies that correspond to files that we think got deleted on the server. Four patches to fix some things in fscache and cachefiles: (4) Fix a couple of checker warnings. (5) Correctly indicate to the end-of-operation callback whether an operation completed or was cancelled. (6) Add a check for multiple cookie relinquishment. (7) Fix a path through the asynchronous write that doesn't wake up a waiter for a page if the cache decides not to write that page, but discards it instead. A couple of patches to add tracepoints to fscache and cachefiles: (8) Add tracepoints for cookie operators, object state machine execution, cachefiles object management and cachefiles VFS operations. (9) Add tracepoints for fscache operation management and page wrangling. And then three development patches: (10) Attach the index key and auxiliary data to the cookie, pass this information through various fscache-netfs API functions and get rid of the callbacks to the netfs to get it. This means that the cache can get at this information, even if the netfs goes away. It also means that the cache can be lazy in updating the coherency data. (11) Pass the object data size through various fscache-netfs API rather than calling back to the netfs for it, and store the value in the object. This makes it easier to correctly resize the object, as the size is updated on writes to the cache, rather than calling back out to the netfs. (12) Maintain a catalogue of allocated cookies. This makes it possible to catch cookie collision up front rather than down in the bowels of the cache being run from a service thread from the object state machine. This will also make it possible in the future to reconnect to a cookie that's not gone dead yet because it's waiting for finalisation of the storage and also make it possible to bring cookies online if the cache is added after the cookie has been obtained" * tag 'fscache-next-20180406' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: fscache: Maintain a catalogue of allocated cookies fscache: Pass object size in rather than calling back for it fscache: Attach the index key and aux data to the cookie fscache: Add more tracepoints fscache: Add tracepoints fscache: Fix hanging wait on page discarded by writeback fscache: Detect multiple relinquishment of a cookie fscache: Pass the correct cancelled indications to fscache_op_complete() fscache, cachefiles: Fix checker warnings afs: Be more aggressive in retiring cached vnodes afs: Use the vnode ID uniquifier in the cache key not the aux data afs: Invalidate cache on server data change
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git://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO updates from Alex Williamson: - Adopt iommu_unmap_fast() interface to type1 backend (Suravee Suthikulpanit) - mdev sample driver fixup (Shunyong Yang) - More efficient PFN mapping handling in type1 backend (Jason Cai) - VFIO device ioeventfd interface (Alex Williamson) - Tag new vfio-platform sub-maintainer (Alex Williamson) * tag 'vfio-v4.17-rc1' of git://github.com/awilliam/linux-vfio: MAINTAINERS: vfio/platform: Update sub-maintainer vfio/pci: Add ioeventfd support vfio/pci: Use endian neutral helpers vfio/pci: Pull BAR mapping setup from read-write path vfio/type1: Improve memory pinning process for raw PFN mapping vfio-mdev/samples: change RDI interrupt condition vfio/type1: Adopt fast IOTLB flush interface when unmap IOVAs
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull fw_cfg, vhost updates from Michael Tsirkin: "This cleans up the qemu fw cfg device driver. On top of this, vmcore is dumped there on crash to help debugging with kASLR enabled. Also included are some fixes in vhost" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vhost: add vsock compat ioctl vhost: fix vhost ioctl signature to build with clang fw_cfg: write vmcoreinfo details crash: export paddr_vmcoreinfo_note() fw_cfg: add DMA register fw_cfg: add a public uapi header fw_cfg: handle fw_cfg_read_blob() error fw_cfg: remove inline from fw_cfg_read_blob() fw_cfg: fix sparse warnings around FW_CFG_FILE_DIR read fw_cfg: fix sparse warning reading FW_CFG_ID fw_cfg: fix sparse warnings with fw_cfg_file fw_cfg: fix sparse warnings in fw_cfg_sel_endianness() ptr_ring: fix build
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI updates from Bjorn Helgaas: - move pci_uevent_ers() out of pci.h (Michael Ellerman) - skip ASPM common clock warning if BIOS already configured it (Sinan Kaya) - fix ASPM Coverity warning about threshold_ns (Gustavo A. R. Silva) - remove last user of pci_get_bus_and_slot() and the function itself (Sinan Kaya) - add decoding for 16 GT/s link speed (Jay Fang) - add interfaces to get max link speed and width (Tal Gilboa) - add pcie_bandwidth_capable() to compute max supported link bandwidth (Tal Gilboa) - add pcie_bandwidth_available() to compute bandwidth available to device (Tal Gilboa) - add pcie_print_link_status() to log link speed and whether it's limited (Tal Gilboa) - use PCI core interfaces to report when device performance may be limited by its slot instead of doing it in each driver (Tal Gilboa) - fix possible cpqphp NULL pointer dereference (Shawn Lin) - rescan more of the hierarchy on ACPI hotplug to fix Thunderbolt/xHCI hotplug (Mika Westerberg) - add support for PCI I/O port space that's neither directly accessible via CPU in/out instructions nor directly mapped into CPU physical memory space. This is fairly intrusive and includes minor changes to interfaces used for I/O space on most platforms (Zhichang Yuan, John Garry) - add support for HiSilicon Hip06/Hip07 LPC I/O space (Zhichang Yuan, John Garry) - use PCI_EXP_DEVCTL2_COMP_TIMEOUT in rapidio/tsi721 (Bjorn Helgaas) - remove possible NULL pointer dereference in of_pci_bus_find_domain_nr() (Shawn Lin) - report quirk timings with dev_info (Bjorn Helgaas) - report quirks that take longer than 10ms (Bjorn Helgaas) - add and use Altera Vendor ID (Johannes Thumshirn) - tidy Makefiles and comments (Bjorn Helgaas) - don't set up INTx if MSI or MSI-X is enabled to align cris, frv, ia64, and mn10300 with x86 (Bjorn Helgaas) - move pcieport_if.h to drivers/pci/pcie/ to encapsulate it (Frederick Lawler) - merge pcieport_if.h into portdrv.h (Bjorn Helgaas) - move workaround for BIOS PME issue from portdrv to PCI core (Bjorn Helgaas) - completely disable portdrv with "pcie_ports=compat" (Bjorn Helgaas) - remove portdrv link order dependency (Bjorn Helgaas) - remove support for unused VC portdrv service (Bjorn Helgaas) - simplify portdrv feature permission checking (Bjorn Helgaas) - remove "pcie_hp=nomsi" parameter (use "pci=nomsi" instead) (Bjorn Helgaas) - remove unnecessary "pcie_ports=auto" parameter (Bjorn Helgaas) - use cached AER capability offset (Frederick Lawler) - don't enable DPC if BIOS hasn't granted AER control (Mika Westerberg) - rename pcie-dpc.c to dpc.c (Bjorn Helgaas) - use generic pci_mmap_resource_range() instead of powerpc and xtensa arch-specific versions (David Woodhouse) - support arbitrary PCI host bridge offsets on sparc (Yinghai Lu) - remove System and Video ROM reservations on sparc (Bjorn Helgaas) - probe for device reset support during enumeration instead of runtime (Bjorn Helgaas) - add ACS quirk for Ampere (née APM) root ports (Feng Kan) - add function 1 DMA alias quirk for Marvell 88SE9220 (Thomas Vincent-Cross) - protect device restore with device lock (Sinan Kaya) - handle failure of FLR gracefully (Sinan Kaya) - handle CRS (config retry status) after device resets (Sinan Kaya) - skip various config reads for SR-IOV VFs as an optimization (KarimAllah Ahmed) - consolidate VPD code in vpd.c (Bjorn Helgaas) - add Tegra dependency on PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) - add DT support for R-Car r8a7743 (Biju Das) - fix a PCI_EJECT vs PCI_BUS_RELATIONS race condition in Hyper-V host bridge driver that causes a general protection fault (Dexuan Cui) - fix Hyper-V host bridge hang in MSI setup on 1-vCPU VMs with SR-IOV (Dexuan Cui) - fix Hyper-V host bridge hang when ejecting a VF before setting up MSI (Dexuan Cui) - make several structures static (Fengguang Wu) - increase number of MSI IRQs supported by Synopsys DesignWare bridges from 32 to 256 (Gustavo Pimentel) - implemented multiplexed IRQ domain API and remove obsolete MSI IRQ API from DesignWare drivers (Gustavo Pimentel) - add Tegra power management support (Manikanta Maddireddy) - add Tegra loadable module support (Manikanta Maddireddy) - handle 64-bit BARs correctly in endpoint support (Niklas Cassel) - support optional regulator for HiSilicon STB (Shawn Guo) - use regulator bulk API for Qualcomm apq8064 (Srinivas Kandagatla) - support power supplies for Qualcomm msm8996 (Srinivas Kandagatla) * tag 'pci-v4.17-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (123 commits) MAINTAINERS: Add John Garry as maintainer for HiSilicon LPC driver HISI LPC: Add ACPI support ACPI / scan: Do not enumerate Indirect IO host children ACPI / scan: Rename acpi_is_serial_bus_slave() for more general use HISI LPC: Support the LPC host on Hip06/Hip07 with DT bindings of: Add missing I/O range exception for indirect-IO devices PCI: Apply the new generic I/O management on PCI IO hosts PCI: Add fwnode handler as input param of pci_register_io_range() PCI: Remove __weak tag from pci_register_io_range() MAINTAINERS: Add missing /drivers/pci/cadence directory entry fm10k: Report PCIe link properties with pcie_print_link_status() net/mlx5e: Use pcie_bandwidth_available() to compute bandwidth net/mlx5: Report PCIe link properties with pcie_print_link_status() net/mlx4_core: Report PCIe link properties with pcie_print_link_status() PCI: Add pcie_print_link_status() to log link speed and whether it's limited PCI: Add pcie_bandwidth_available() to compute bandwidth available to device misc: pci_endpoint_test: Handle 64-bit BARs properly PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs properly PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when clearing PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take struct *epf_bar ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds authored
Pull rdma updates from Jason Gunthorpe: "Doug and I are at a conference next week so if another PR is sent I expect it to only be bug fixes. Parav noted yesterday that there are some fringe case behavior changes in his work that he would like to fix, and I see that Intel has a number of rc looking patches for HFI1 they posted yesterday. Parav is again the biggest contributor by patch count with his ongoing work to enable container support in the RDMA stack, followed by Leon doing syzkaller inspired cleanups, though most of the actual fixing went to RC. There is one uncomfortable series here fixing the user ABI to actually work as intended in 32 bit mode. There are lots of notes in the commit messages, but the basic summary is we don't think there is an actual 32 bit kernel user of drivers/infiniband for several good reasons. However we are seeing people want to use a 32 bit user space with 64 bit kernel, which didn't completely work today. So in fixing it we required a 32 bit rxe user to upgrade their userspace. rxe users are still already quite rare and we think a 32 bit one is non-existing. - Fix RDMA uapi headers to actually compile in userspace and be more complete - Three shared with netdev pull requests from Mellanox: * 7 patches, mostly to net with 1 IB related one at the back). This series addresses an IRQ performance issue (patch 1), cleanups related to the fix for the IRQ performance problem (patches 2-6), and then extends the fragmented completion queue support that already exists in the net side of the driver to the ib side of the driver (patch 7). * Mostly IB, with 5 patches to net that are needed to support the remaining 10 patches to the IB subsystem. This series extends the current 'representor' framework when the mlx5 driver is in switchdev mode from being a netdev only construct to being a netdev/IB dev construct. The IB dev is limited to raw Eth queue pairs only, but by having an IB dev of this type attached to the representor for a switchdev port, it enables DPDK to work on the switchdev device. * All net related, but needed as infrastructure for the rdma driver - Updates for the hns, i40iw, bnxt_re, cxgb3, cxgb4, hns drivers - SRP performance updates - IB uverbs write path cleanup patch series from Leon - Add RDMA_CM support to ib_srpt. This is disabled by default. Users need to set the port for ib_srpt to listen on in configfs in order for it to be enabled (/sys/kernel/config/target/srpt/discovery_auth/rdma_cm_port) - TSO and Scatter FCS support in mlx4 - Refactor of modify_qp routine to resolve problems seen while working on new code that is forthcoming - More refactoring and updates of RDMA CM for containers support from Parav - mlx5 'fine grained packet pacing', 'ipsec offload' and 'device memory' user API features - Infrastructure updates for the new IOCTL interface, based on increased usage - ABI compatibility bug fixes to fully support 32 bit userspace on 64 bit kernel as was originally intended. See the commit messages for extensive details - Syzkaller bugs and code cleanups motivated by them" * tag 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (199 commits) IB/rxe: Fix for oops in rxe_register_device on ppc64le arch IB/mlx5: Device memory mr registration support net/mlx5: Mkey creation command adjustments IB/mlx5: Device memory support in mlx5_ib net/mlx5: Query device memory capabilities IB/uverbs: Add device memory registration ioctl support IB/uverbs: Add alloc/free dm uverbs ioctl support IB/uverbs: Add device memory capabilities reporting IB/uverbs: Expose device memory capabilities to user RDMA/qedr: Fix wmb usage in qedr IB/rxe: Removed GID add/del dummy routines RDMA/qedr: Zero stack memory before copying to user space IB/mlx5: Add ability to hash by IPSEC_SPI when creating a TIR IB/mlx5: Add information for querying IPsec capabilities IB/mlx5: Add IPsec support for egress and ingress {net,IB}/mlx5: Add ipsec helper IB/mlx5: Add modify_flow_action_esp verb IB/mlx5: Add implementation for create and destroy action_xfrm IB/uverbs: Introduce ESP steering match filter IB/uverbs: Add modify ESP flow_action ...
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git://git.linaro.org/landing-teams/working/fujitsu/integrationLinus Torvalds authored
Pull mailbox updates from Jassi Brar: - New Hi3660 mailbox driver - Fix TEGRA Kconfig warning - Broadcom: use dma_pool_zalloc instead of dma_pool_alloc+memset * tag 'mailbox-v4.17' of git://git.linaro.org/landing-teams/working/fujitsu/integration: mailbox: Add support for Hi3660 mailbox dt-bindings: mailbox: Introduce Hi3660 controller binding mailbox: tegra: relax TEGRA_HSP_MBOX Kconfig dependencies maillbox: bcm-flexrm-mailbox: Use dma_pool_zalloc()
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- 06 Apr, 2018 22 commits
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Tobin C. Harding authored
MAINTAINERS is out of date for leaking_addresses.pl. There is now a tree on kernel.org for development of this script. We have a second maintainer now, thanks Tycho. Development of this scripts was started on kernel-hardening mailing list so let's keep it there. Update maintainer details; Add mailing list, kernel.org hosted tree, and second maintainer. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Sometimes files may be created by using output from printk. As the scan traverses the directory tree we should parse each path name and check if it is leaking an address. Add check for leaking address on each path name. Suggested-by:
Tycho Andersen <tycho@tycho.ws> Acked-by:
Tycho Andersen <tycho@tycho.ws> Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently sub routine may_leak_address() is checking regex against Perl special variable $_ which is _fortunately_ being set correctly in a loop before this sub routine is called. We already have declared a variable to hold this value '$line' we should use it. Use $line in regex match instead of implicit $_ Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
We have git now, we don't need a version number. This was originally added because leaking_addresses.pl shamelessly (and mindlessly) copied checkpatch.pl Remove version number from script. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
The pointers listed in /proc/1/syscall are user pointers, and negative syscall args will show up like kernel addresses. For example /proc/31808/syscall: 0 0x3 0x55b107a38180 0x2000 0xffffffffffffffb0 \ 0x55b107a302d0 0x55b107a38180 0x7fffa313b8e8 0x7ff098560d11 Skip parsing /proc/1/syscall Suggested-by:
Tycho Andersen <tycho@tycho.ws> Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
When the system is idle it is likely that most files under /proc/PID will be identical for various processes. Scanning _all_ the PIDs under /proc is unnecessary and implies that we are thoroughly scanning /proc. This is _not_ the case because there may be ways userspace can trigger creation of /proc files that leak addresses but were not present during a scan. For these two reasons we should exclude all PID directories under /proc except '1/' Exclude all /proc/PID except /proc/1. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently we are repeatedly calling `uname -m`. This is causing the script to take a long time to run (more than 10 seconds to parse /proc/kallsyms). We can use Perl state variables to cache the result of the first call to `uname -m`. With this change in place the script scans the whole kernel in under a minute. Cache machine architecture in state variable. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script has multiple configuration arrays. This is confusing, evident by the fact that a bunch of the entries are in the wrong place. We can simplify the code by just having a single array for absolute paths to skip and a single array for file names to skip wherever they appear in the scanned directory tree. There are also currently multiple subroutines to handle the different arrays, we can reduce these to a single subroutine also. Simplify the path skipping code. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script parses binary files. Since we are scanning for readable kernel addresses there is no need to parse binary files. We can use Perl to check if file is binary and skip parsing it if so. Do not parse binary files. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script only supports x86_64 and ppc64. It would be nice to be able to scan 32-bit machines also. We can add support for 32-bit architectures by modifying how we check for false positives, taking advantage of the page offset used by the kernel, and using the correct regular expression. Support for 32-bit machines is enabled by the observation that the kernel addresses on 32-bit machines are larger [in value] than the page offset. We can use this to filter false positives when scanning the kernel for leaking addresses. Programmatic determination of the running architecture is not immediately obvious (current 32-bit machines return various strings from `uname -m`). We therefore provide a flag to enable scanning of 32-bit kernels. Also we can check the kernel config file for the offset and if not found default to 0xc0000000. A command line option to parse in the page offset is also provided. We do automatically detect architecture if running on ix86. Add support for 32-bit kernels. Add a command line option for page offset. Suggested-by:
Kaiwan N Billimoria <kaiwan.billimoria@gmail.com> Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently there is duplicate code when checking the architecture type. We can remove the duplication by implementing a wrapper function is_arch(). Implement and use wrapper function is_arch(). Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script uses Perl to get the machine architecture. This can be erroneous since Perl uses the architecture of the machine that Perl was compiled on not the architecture of the running machine. We should use the systems `uname` command instead. Use `uname -m` instead of Perl to get the machine architecture. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script only supports 4 page table levels because of the way the kernel address regular expression is crafted. We can do better than this. Using previously added support for kernel configuration options we can get the number of page table levels defined by CONFIG_PGTABLE_LEVELS. Using this value a correct regular expression can be crafted. This only supports 5 page tables on x86_64. Add support for 5 page table levels on x86_64. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Features that rely on the ability to get kernel configuration options are ready to be implemented in script. In preparation for this we can add support for kernel config options as a separate patch to ease review. Add support for locating and parsing kernel configuration file. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently script checks only first and last address in the vsyscall memory range. We can do better than this. When checking for false positives against $match, we can convert $match to a hexadecimal value then check if it lies within the range of vsyscall addresses. Check whole range of vsyscall addresses when checking for false positive. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
A number of the command line options to script are dependant on the option --input-raw being set. If we indent these options it makes explicit this dependency. Indent options dependant on --input-raw. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently help output includes command examples. These were cute when we first started development of this script but are unnecessary. Remove command examples. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
leaking_addresses.pl can be run with kptr_restrict==0 now, we don't need the comment about setting kptr_restrict any more. Remove comment suggesting setting kptr_restrict. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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Tobin C. Harding authored
Currently code uses a check against an undefined variable because the variable is a sub routine name and is not evaluated. Evaluate subroutine; add parenthesis to sub routine name. Signed-off-by:
Tobin C. Harding <me@tobin.cc>
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinuxLinus Torvalds authored
Pull SELinux updates from Paul Moore: "A bigger than usual pull request for SELinux, 13 patches (lucky!) along with a scary looking diffstat. Although if you look a bit closer, excluding the usual minor tweaks/fixes, there are really only two significant changes in this pull request: the addition of proper SELinux access controls for SCTP and the encapsulation of a lot of internal SELinux state. The SCTP changes are the result of a multi-month effort (maybe even a year or longer?) between the SELinux folks and the SCTP folks to add proper SELinux controls. A special thanks go to Richard for seeing this through and keeping the effort moving forward. The state encapsulation work is a bit of janitorial work that came out of some early work on SELinux namespacing. The question of namespacing is still an open one, but I believe there is some real value in the encapsulation work so we've split that out and are now sending that up to you" * tag 'selinux-pr-20180403' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: wrap AVC state selinux: wrap selinuxfs state selinux: fix handling of uninitialized selinux state in get_bools/classes selinux: Update SELinux SCTP documentation selinux: Fix ltp test connect-syscall failure selinux: rename the {is,set}_enforcing() functions selinux: wrap global selinux state selinux: fix typo in selinux_netlbl_sctp_sk_clone declaration selinux: Add SCTP support sctp: Add LSM hooks sctp: Add ip option support security: Add support for SCTP security hooks netlabel: If PF_INET6, check sk_buff ip header version
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git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/auditLinus Torvalds authored
Pull audit updates from Paul Moore: "We didn't have anything to send for v4.16, but we're back with a little more than usual for v4.17. Eleven patches in total, most fall into the small fix category, but there are three non-trivial changes worth calling out: - the audit entry filter is being removed after deprecating it for quite a while (years of no one really using it because it turns out to be not very practical) - created our own version of "__mutex_owner()" because the locking folks were upset we were using theirs - improved our handling of kernel command line parameters to make them more forgiving - we fixed auditing of symlink operations Everything passes the audit-testsuite and as of a few minutes ago it merges well with your tree" * tag 'audit-pr-20180403' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: add refused symlink to audit_names audit: remove path param from link denied function audit: link denied should not directly generate PATH record audit: make ANOM_LINK obey audit_enabled and audit_dummy_context audit: do not panic on invalid boot parameter audit: track the owner of the command mutex ourselves audit: return on memory error to avoid null pointer dereference audit: bail before bug check if audit disabled audit: deprecate the AUDIT_FILTER_ENTRY filter audit: session ID should not set arch quick field pointer audit: update bugtracker and source URIs
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds authored
Pull pstore updates from Kees Cook: "This cycle was almost entirely improvements to the pstore compression options, noted below: - Add lz4hc and 842 to pstore compression options (Geliang Tang) - Refactor to use crypto compression API (Geliang Tang) - Fix up Kconfig dependencies for compression (Arnd Bergmann) - Allow for run-time compression selection - Remove stack VLA usage" * tag 'pstore-v4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: fix crypto dependencies pstore: Use crypto compress API pstore/ram: Do not use stack VLA for parity workspace pstore: Select compression at runtime pstore: Avoid size casts for 842 compression pstore: Add lz4hc and 842 compression support
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