Linux is a mostly POSIX-compliant Unix-inspired operating system kernel, originally implemented by Linus Torvalds and now maintained as an international project. It's the base and common namegiver to a wide array of Linux distributions. The kernel provides all modern Unix-y features, like true process multitasking, virtual memory, virtual and clustered filesystem support, complex networking and extensive support for various hardware and machine platforms.
minor feature: Linux 4.10.12, virtio-console: avoid DMA from stack, cxusb: Use a dma capable buffer also for reading, mm: Tighten x86 /dev/mem with zeroing reads, rtc: tegra: Implement clock handling, ACPI / EC: Use busy polling mode when GPE is not enabled, x86/xen: APIC id mismatch warning on Intel, platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event, ASoC: Intel: select DW_DMAC_CORE since it's mandatory, dvb-usb-v2: avoid use-after-free, parisc: get_user() for 64-bit value on 32-bit kernel, crypto: lrw - use-after-free on EINPROGRESS, crypto: ahash - EINPROGRESS notification callback, crypto: xts - use-after-free on EINPROGRESS, crypto: algif_aead - bogus request dereference in completion function, ftrace: function pid filter on instances, zram: do not use copy_page with non-page aligned address, Revert "MIPS: Lantiq: cascaded IRQ setup", char: lack of bool string made CONFIG_DEVPORT always on, drm/i915/gvt: set the correct default value of CTX STATUS PTR, ftrace: removing of second function probe, irqchip/irq-imx-gpcv2: spinlock initialization, cpufreq: Bring CPUs up even if cpufreq_online() failed, pwm: rockchip: State of PWM clock should synchronize with PWM enabled state, can: ifi: use correct register to read rx status, libnvdimm: band aid btt vs clear poison locking, libnvdimm: reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat, libnvdimm: blk free space accounting, make skb_copy_datagram_msg() et.al. preserve - msg_iter on error, new privimitive: iov_iter_revert(), xen, fbfront: connecting to backend, target: Avoid mappedlun symlink creation during lun shutdown, scsi: sd: capacity calculation with 32-bit sector_t, scsi: qla2xxx: Add to read correct register value for ISP82xx. scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable, scsi: sr: Sanity check returned mode data, iscsi-target: Drop work-around for legacy GlobalSAN initiator, iscsi-target: TMR reference leak during session shutdown, efi/fb: Avoid reconfiguration