1. 01 Feb, 2023 16 commits
  2. 20 Jan, 2023 1 commit
  3. 19 Jan, 2023 4 commits
  4. 15 Jan, 2023 4 commits
  5. 14 Jan, 2023 7 commits
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · 7c698440
      Linus Torvalds authored
      Pull iommu fixes from Joerg Roedel:
      
       - Core: Fix an iommu-group refcount leak
      
       - Fix overflow issue in IOVA alloc path
      
       - ARM-SMMU fixes from Will:
          - Fix VFIO regression on NXP SoCs by reporting IOMMU_CAP_CACHE_COHERENCY
          - Fix SMMU shutdown paths to avoid device unregistration race
      
       - Error handling fix for Mediatek IOMMU driver
      
      * tag 'iommu-fixes-v6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu/mediatek-v1: Fix an error handling path in mtk_iommu_v1_probe()
        iommu/iova: Fix alloc iova overflows issue
        iommu: Fix refcount leak in iommu_device_claim_dma_owner
        iommu/arm-smmu-v3: Don't unregister on shutdown
        iommu/arm-smmu: Don't unregister on shutdown
        iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer
      7c698440
    • Linus Torvalds's avatar
      Merge tag 'fixes-2023-01-14' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock · 4f43ade4
      Linus Torvalds authored
      Pull memblock fix from Mike Rapoport:
       "memblock: always release pages to the buddy allocator in
        memblock_free_late()
      
        If CONFIG_DEFERRED_STRUCT_PAGE_INIT is enabled, memblock_free_pages()
        only releases pages to the buddy allocator if they are not in the
        deferred range. This is correct for free pages (as defined by
        for_each_free_mem_pfn_range_in_zone()) because free pages in the
        deferred range will be initialized and released as part of the
        deferred init process.
      
        memblock_free_pages() is called by memblock_free_late(), which is used
        to free reserved ranges after memblock_free_all() has run. All pages
        in reserved ranges have been initialized at that point, and
        accordingly, those pages are not touched by the deferred init process.
      
        This means that currently, if the pages that memblock_free_late()
        intends to release are in the deferred range, they will never be
        released to the buddy allocator. They will forever be reserved.
      
        In addition, memblock_free_pages() calls kmsan_memblock_free_pages(),
        which is also correct for free pages but is not correct for reserved
        pages. KMSAN metadata for reserved pages is initialized by
        kmsan_init_shadow(), which runs shortly before memblock_free_all().
      
        For both of these reasons, memblock_free_pages() should only be called
        for free pages, and memblock_free_late() should call
        __free_pages_core() directly instead.
      
        One case where this issue can occur in the wild is EFI boot on x86_64.
        The x86 EFI code reserves all EFI boot services memory ranges via
        memblock_reserve() and frees them later via memblock_free_late()
        (efi_reserve_boot_services() and efi_free_boot_services(),
        respectively).
      
        If any of those ranges happens to fall within the deferred init range,
        the pages will not be released and that memory will be unavailable.
      
        For example, on an Amazon EC2 t3.micro VM (1 GB) booting via EFI:
      
          v6.2-rc2:
          Node 0, zone      DMA
                spanned  4095
                present  3999
                managed  3840
          Node 0, zone    DMA32
                spanned  246652
                present  245868
                managed  178867
      
          v6.2-rc2 + patch:
          Node 0, zone      DMA
                spanned  4095
                present  3999
                managed  3840
          Node 0, zone    DMA32
                spanned  246652
                present  245868
                managed  222816   # +43,949 pages"
      
      * tag 'fixes-2023-01-14' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
        mm: Always release pages to the buddy allocator in memblock_free_late().
      4f43ade4
    • Linus Torvalds's avatar
      Merge tag 'hardening-v6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · 880ca43e
      Linus Torvalds authored
      Pull kernel hardening fixes from Kees Cook:
      
       - Fix CFI hash randomization with KASAN (Sami Tolvanen)
      
       - Check size of coreboot table entry and use flex-array
      
      * tag 'hardening-v6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
        kbuild: Fix CFI hash randomization with KASAN
        firmware: coreboot: Check size of table entry and use flex-array
      880ca43e
    • Linus Torvalds's avatar
      Merge tag 'modules-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux · 8b7be52f
      Linus Torvalds authored
      Pull module fix from Luis Chamberlain:
       "Just one fix for modules by Nick"
      
      * tag 'modules-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
        kallsyms: Fix scheduling with interrupts disabled in self-test
      8b7be52f
    • Linus Torvalds's avatar
      Merge tag '6.2-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 · b35ad63e
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
      
       - memory leak and double free fix
      
       - two symlink fixes
      
       - minor cleanup fix
      
       - two smb1 fixes
      
      * tag '6.2-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: Fix uninitialized memory read for smb311 posix symlink create
        cifs: fix potential memory leaks in session setup
        cifs: do not query ifaces on smb1 mounts
        cifs: fix double free on failed kerberos auth
        cifs: remove redundant assignment to the variable match
        cifs: fix file info setting in cifs_open_file()
        cifs: fix file info setting in cifs_query_path_info()
      b35ad63e
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 8e768130
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Two minor fixes in the hisi_sas driver which only impact enterprise
        style multi-expander and shared disk situations and no core changes"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: hisi_sas: Set a port invalid only if there are no devices attached when refreshing port id
        scsi: hisi_sas: Use abort task set to reset SAS disks when discovered
      8e768130
    • Linus Torvalds's avatar
      Merge tag 'ata-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata · 34cbf89a
      Linus Torvalds authored
      Pull ATA fix from Damien Le Moal:
       "A single fix to prevent building the pata_cs5535 driver with user mode
        linux as it uses msr operations that are not defined with UML"
      
      * tag 'ata-6.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
        ata: pata_cs5535: Don't build on UML
      34cbf89a
  6. 13 Jan, 2023 8 commits
    • Linus Torvalds's avatar
      Merge tag 'block-6.2-2023-01-13' of git://git.kernel.dk/linux · 97ec4d55
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "Nothing major in here, just a collection of NVMe fixes and dropping a
        wrong might_sleep() that static checkers tripped over but which isn't
        valid"
      
      * tag 'block-6.2-2023-01-13' of git://git.kernel.dk/linux:
        MAINTAINERS: stop nvme matching for nvmem files
        nvme: don't allow unprivileged passthrough on partitions
        nvme: replace the "bool vec" arguments with flags in the ioctl path
        nvme: remove __nvme_ioctl
        nvme-pci: fix error handling in nvme_pci_enable()
        nvme-pci: add NVME_QUIRK_IDENTIFY_CNS quirk to Apple T2 controllers
        nvme-apple: add NVME_QUIRK_IDENTIFY_CNS quirk to fix regression
        block: Drop spurious might_sleep() from blk_put_queue()
      97ec4d55
    • Linus Torvalds's avatar
      Merge tag 'io_uring-6.2-2023-01-13' of git://git.kernel.dk/linux · 2ce7592d
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "A fix for a regression that happened last week, rest is fixes that
        will be headed to stable as well. In detail:
      
         - Fix for a regression added with the leak fix from last week (me)
      
         - In writing a test case for that leak, inadvertently discovered a
           case where we a poll request can race. So fix that up and mark it
           for stable, and also ensure that fdinfo covers both the poll tables
           that we have. The latter was an oversight when the split poll table
           were added (me)
      
         - Fix for a lockdep reported issue with IOPOLL (Pavel)"
      
      * tag 'io_uring-6.2-2023-01-13' of git://git.kernel.dk/linux:
        io_uring: lock overflowing for IOPOLL
        io_uring/poll: attempt request issue after racy poll wakeup
        io_uring/fdinfo: include locked hash table in fdinfo output
        io_uring/poll: add hash if ready poll request can't complete inline
        io_uring/io-wq: only free worker if it was allocated for creation
      2ce7592d
    • Linus Torvalds's avatar
      Merge tag 'pci-v6.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 9e058c29
      Linus Torvalds authored
      Pull pci fixes from Bjorn Helgaas:
      
       - Work around apparent firmware issue that made Linux reject MMCONFIG
         space, which broke PCI extended config space (Bjorn Helgaas)
      
       - Fix CONFIG_PCIE_BT1 dependency due to mid-air collision between a
         PCI_MSI_IRQ_DOMAIN -> PCI_MSI change and addition of PCIE_BT1 (Lukas
         Bulwahn)
      
      * tag 'pci-v6.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        x86/pci: Treat EfiMemoryMappedIO as reservation of ECAM space
        x86/pci: Simplify is_mmconf_reserved() messages
        PCI: dwc: Adjust to recent removal of PCI_MSI_IRQ_DOMAIN
      9e058c29
    • Sami Tolvanen's avatar
      kbuild: Fix CFI hash randomization with KASAN · 42633ed8
      Sami Tolvanen authored
      Clang emits a asan.module_ctor constructor to each object file
      when KASAN is enabled, and these functions are indirectly called
      in do_ctors. With CONFIG_CFI_CLANG, the compiler also emits a CFI
      type hash before each address-taken global function so they can
      pass indirect call checks.
      
      However, in commit 0c3e806e ("x86/cfi: Add boot time hash
      randomization"), x86 implemented boot time hash randomization,
      which relies on the .cfi_sites section generated by objtool. As
      objtool is run against vmlinux.o instead of individual object
      files with X86_KERNEL_IBT (enabled by default), CFI types in
      object files that are not part of vmlinux.o end up not being
      included in .cfi_sites, and thus won't get randomized and trip
      CFI when called.
      
      Only .vmlinux.export.o and init/version-timestamp.o are linked
      into vmlinux separately from vmlinux.o. As these files don't
      contain any functions, disable KASAN for both of them to avoid
      breaking hash randomization.
      
      Link: https://github.com/ClangBuiltLinux/linux/issues/1742
      Fixes: 0c3e806e ("x86/cfi: Add boot time hash randomization")
      Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
      Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      Link: https://lore.kernel.org/r/20230112224948.1479453-2-samitolvanen@google.com
      42633ed8
    • Kees Cook's avatar
      firmware: coreboot: Check size of table entry and use flex-array · 3b293487
      Kees Cook authored
      The memcpy() of the data following a coreboot_table_entry couldn't
      be evaluated by the compiler under CONFIG_FORTIFY_SOURCE. To make it
      easier to reason about, add an explicit flexible array member to struct
      coreboot_device so the entire entry can be copied at once. Additionally,
      validate the sizes before copying. Avoids this run-time false positive
      warning:
      
        memcpy: detected field-spanning write (size 168) of single field "&device->entry" at drivers/firmware/google/coreboot_table.c:103 (size 8)
      Reported-by: default avatarPaul Menzel <pmenzel@molgen.mpg.de>
      Link: https://lore.kernel.org/all/03ae2704-8c30-f9f0-215b-7cdf4ad35a9a@molgen.mpg.de/
      Cc: Jack Rosenthal <jrosenth@chromium.org>
      Cc: Guenter Roeck <groeck@chromium.org>
      Cc: Julius Werner <jwerner@chromium.org>
      Cc: Brian Norris <briannorris@chromium.org>
      Cc: Stephen Boyd <swboyd@chromium.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      Reviewed-by: default avatarJulius Werner <jwerner@chromium.org>
      Reviewed-by: default avatarGuenter Roeck <groeck@chromium.org>
      Link: https://lore.kernel.org/r/20230107031406.gonna.761-kees@kernel.orgReviewed-by: default avatarStephen Boyd <swboyd@chromium.org>
      Reviewed-by: default avatarJack Rosenthal <jrosenth@chromium.org>
      Link: https://lore.kernel.org/r/20230112230312.give.446-kees@kernel.org
      3b293487
    • Nicholas Piggin's avatar
      kallsyms: Fix scheduling with interrupts disabled in self-test · da35048f
      Nicholas Piggin authored
      kallsyms_on_each* may schedule so must not be called with interrupts
      disabled. The iteration function could disable interrupts, but this
      also changes lookup_symbol() to match the change to the other timing
      code.
      Reported-by: default avatarErhard F. <erhard_f@mailbox.org>
      Link: https://lore.kernel.org/all/bug-216902-206035@https.bugzilla.kernel.org%2F/Reported-by: default avatarkernel test robot <oliver.sang@intel.com>
      Link: https://lore.kernel.org/oe-lkp/202212251728.8d0872ff-oliver.sang@intel.com
      Fixes: 30f3bb09 ("kallsyms: Add self-test facility")
      Tested-by: default avatar"Erhard F." <erhard_f@mailbox.org>
      Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
      Signed-off-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
      da35048f
    • Peter Foley's avatar
      ata: pata_cs5535: Don't build on UML · 22eebaa6
      Peter Foley authored
      This driver uses MSR functions that aren't implemented under UML.
      Avoid building it to prevent tripping up allyesconfig.
      
      e.g.
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3a3): undefined reference to `__tracepoint_read_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x3d2): undefined reference to `__tracepoint_write_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x457): undefined reference to `__tracepoint_write_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x481): undefined reference to `do_trace_write_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4d5): undefined reference to `do_trace_write_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x4f5): undefined reference to `do_trace_read_msr'
      /usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: pata_cs5535.c:(.text+0x51c): undefined reference to `do_trace_write_msr'
      Signed-off-by: default avatarPeter Foley <pefoley2@pefoley.com>
      Reviewed-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
      22eebaa6
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 92783a90
      Linus Torvalds authored
      Pull kvm fixes from Paolo Bonzini:
       "ARM:
      
         - Fix the PMCR_EL0 reset value after the PMU rework
      
         - Correctly handle S2 fault triggered by a S1 page table walk by not
           always classifying it as a write, as this breaks on R/O memslots
      
         - Document why we cannot exit with KVM_EXIT_MMIO when taking a write
           fault from a S1 PTW on a R/O memslot
      
         - Put the Apple M2 on the naughty list for not being able to
           correctly implement the vgic SEIS feature, just like the M1 before
           it
      
         - Reviewer updates: Alex is stepping down, replaced by Zenghui
      
        x86:
      
         - Fix various rare locking issues in Xen emulation and teach lockdep
           to detect them
      
         - Documentation improvements
      
         - Do not return host topology information from KVM_GET_SUPPORTED_CPUID"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: x86/xen: Avoid deadlock by adding kvm->arch.xen.xen_lock leaf node lock
        KVM: Ensure lockdep knows about kvm->lock vs. vcpu->mutex ordering rule
        KVM: x86/xen: Fix potential deadlock in kvm_xen_update_runstate_guest()
        KVM: x86/xen: Fix lockdep warning on "recursive" gpc locking
        Documentation: kvm: fix SRCU locking order docs
        KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID
        KVM: nSVM: clarify recalc_intercepts() wrt CR8
        MAINTAINERS: Remove myself as a KVM/arm64 reviewer
        MAINTAINERS: Add Zenghui Yu as a KVM/arm64 reviewer
        KVM: arm64: vgic: Add Apple M2 cpus to the list of broken SEIS implementations
        KVM: arm64: Convert FSC_* over to ESR_ELx_FSC_*
        KVM: arm64: Document the behaviour of S1PTW faults on RO memslots
        KVM: arm64: Fix S1PTW handling on RO memslots
        KVM: arm64: PMU: Fix PMCR_EL0 reset value
      92783a90