Documentation/hw-vuln/mds.rst
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Merge android-4.4.180 (71cb827c) into msm-4.4
* refs/heads/tmp-71cb827c Linux 4.4.180 powerpc/lib: fix book3s/32 boot failure due to code patching powerpc/booke64: set RI in default MSR drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl bonding: fix arp_validate toggling in active-backup mode ipv4: Fix raw socket lookup for local traffic vrf: sit mtu should not be updated when vrf netdev is the link vlan: disable SIOCSHWTSTAMP in container packet: Fix error path in packet_init net: ucc_geth - fix Oops when changing number of buffers in the ring bridge: Fix error path for kobject_init_and_add() powerpc/64s: Include cpu header USB: serial: fix unthrottle races USB: serial: use variable for status x86/bugs: Change L1TF mitigation string to match upstream x86/speculation/mds: Fix documentation typo Documentation: Correct the possible MDS sysfs values x86/mds: Add MDSUM variant to the MDS documentation x86/speculation/mds: Add 'mitigations=' support for MDS x86/speculation: Support 'mitigations=' cmdline option cpu/speculation: Add 'mitigations=' cmdline option x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off x86/speculation/mds: Fix comment x86/speculation/mds: Add SMT warning message x86/speculation: Move arch_smt_update() call to after mitigation decisions x86/cpu/bugs: Use __initconst for 'const' init data Documentation: Add MDS vulnerability documentation Documentation: Move L1TF to separate directory x86/speculation/mds: Add mitigation mode VMWERV x86/speculation/mds: Add sysfs reporting for MDS x86/speculation/l1tf: Document l1tf in sysfs x86/speculation/mds: Add mitigation control for MDS x86/speculation/mds: Conditionally clear CPU buffers on idle entry x86/speculation/mds: Clear CPU buffers on exit to user x86/speculation/mds: Add mds_clear_cpu_buffers() x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests x86/speculation/mds: Add BUG_MSBDS_ONLY x86/speculation/mds: Add basic bug infrastructure for MDS x86/speculation: Consolidate CPU whitelists x86/msr-index: Cleanup bit defines kvm: x86: Report STIBP on GET_SUPPORTED_CPUID x86/speculation: Provide IBPB always command line options x86/speculation: Add seccomp Spectre v2 user space protection mode x86/speculation: Enable prctl mode for spectre_v2_user x86/speculation: Add prctl() control for indirect branch speculation x86/speculation: Prevent stale SPEC_CTRL msr content x86/speculation: Prepare arch_smt_update() for PRCTL mode x86/speculation: Split out TIF update x86/speculation: Prepare for conditional IBPB in switch_mm() x86/speculation: Avoid __switch_to_xtra() calls x86/process: Consolidate and simplify switch_to_xtra() code x86/speculation: Prepare for per task indirect branch speculation control x86/speculation: Add command line control for indirect branch speculation x86/speculation: Unify conditional spectre v2 print functions x86/speculataion: Mark command line parser data __initdata x86/speculation: Mark string arrays const correctly x86/speculation: Reorder the spec_v2 code x86/speculation: Rework SMT state change sched: Add sched_smt_active() x86/Kconfig: Select SCHED_SMT if SMP enabled x86/speculation: Reorganize speculation control MSRs update x86/speculation: Rename SSBD update functions x86/speculation: Disable STIBP when enhanced IBRS is in use x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() x86/speculation: Remove unnecessary ret variable in cpu_show_common() x86/speculation: Clean up spectre_v2_parse_cmdline() x86/speculation: Update the TIF_SSBD comment x86/speculation: Propagate information about RSB filling mitigation to sysfs x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation x86/speculation: Apply IBPB more strictly to avoid cross-process data leak x86/mm: Use WRITE_ONCE() when setting PTEs KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled x86/cpu: Sanitize FAM6_ATOM naming x86/microcode: Update the new microcode revision unconditionally x86/microcode: Make sure boot_cpu_data.microcode is up-to-date x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a new <linux/bits.h> file x86/bugs: Switch the selection of mitigation from CPU vendor to CPU features x86/bugs: Add AMD's SPEC_CTRL MSR usage x86/bugs: Add AMD's variant of SSB_NO x86/speculation: Simplify the CPU bug detection logic x86/speculation: Support Enhanced IBRS on future CPUs x86/cpufeatures: Hide AMD-specific speculation flags x86/MCE: Save microcode revision in machine check records x86/microcode/intel: Check microcode revision before updating sibling threads bitops: avoid integer overflow in GENMASK(_ULL) x86: stop exporting msr-index.h to userland x86/microcode/intel: Add a helper which gives the microcode revision locking/static_keys: Provide DECLARE and well as DEFINE macros Don't jump to compute_result state from check_result state x86/vdso: Pass --eh-frame-hdr to the linker cw1200: fix missing unlock on error in cw1200_hw_scan() gpu: ipu-v3: dp: fix CSC handling selftests/net: correct the return value for run_netsocktests s390: ctcm: fix ctcm_new_device error return code ipvs: do not schedule icmp errors from tunnels init: initialize jump labels before command line option parsing tools lib traceevent: Fix missing equality check for strcmp KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing s390/3270: fix lockdep false positive on view->lock s390/dasd: Fix capacity calculation for large volumes libnvdimm/btt: Fix a kmemdup failure check HID: input: add mapping for keyboard Brightness Up/Down/Toggle keys HID: input: add mapping for Expose/Overview key iio: adc: xilinx: fix potential use-after-free on remove platform/x86: sony-laptop: Fix unintentional fall-through netfilter: compat: initialize all fields in xt_init timer/debug: Change /proc/timer_stats from 0644 to 0600 ASoC: Intel: avoid Oops if DMA setup fails ipv6: fix a potential deadlock in do_ipv6_setsockopt() UAS: fix alignment of scatter/gather segments Bluetooth: Align minimum encryption key size for LE and BR/EDR connections Bluetooth: hidp: fix buffer overflow scsi: qla2xxx: Fix incorrect region-size setting in optrom SYSFS routines usb: dwc3: Fix default lpm_nyet_threshold value genirq: Prevent use-after-free and work list corruption iommu/amd: Set exclusion range correctly scsi: csiostor: fix missing data copy in csio_scsi_err_handler() perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS ASoC: tlv320aic32x4: Fix Common Pins ASoC: cs4270: Set auto-increment bit for register writes ASoC:soc-pcm:fix a codec fixup issue in TDM case scsi: libsas: fix a race condition when smp task timeout media: v4l2: i2c: ov7670: Fix PLL bypass register values x86/mce: Improve error message when kernel cannot recover, p2 selinux: never allow relabeling on context mounts Input: snvs_pwrkey - initialize necessary driver data before enabling IRQ staging: iio: adt7316: fix the dac write calculation staging: iio: adt7316: fix the dac read calculation staging: iio: adt7316: allow adt751x to use internal vref for all dacs usb: usbip: fix isoc packet num validation in get_pipe ARM: iop: don't use using 64-bit DMA masks ARM: orion: don't use using 64-bit DMA masks xsysace: Fix error handling in ace_setup hugetlbfs: fix memory leak for resv_map net: hns: Fix WARNING when remove HNS driver with SMMU enabled net: hns: Use NAPI_POLL_WEIGHT for hns driver scsi: storvsc: Fix calculation of sub-channel count vfio/pci: use correct format characters rtc: da9063: set uie_unsupported when relevant debugfs: fix use-after-free on symlink traversal jffs2: fix use-after-free on symlink traversal bonding: show full hw address in sysfs for slave entries igb: Fix WARN_ONCE on runtime suspend rtc: sh: Fix invalid alarm warning for non-enabled alarm HID: debug: fix race condition with between rdesc_show() and device removal USB: core: Fix bug caused by duplicate interface PM usage counter USB: core: Fix unterminated string returned by usb_string() USB: w1 ds2490: Fix bug caused by improper use of altsetting array USB: yurex: Fix protection fault after device removal packet: validate msg_namelen in send directly bnxt_en: Improve multicast address setup logic. ipv6: invert flowlabel sharing check in process and user mode ipv6/flowlabel: wait rcu grace period before put_pid() ipv4: ip_do_fragment: Preserve skb_iif during fragmentation ALSA: line6: use dynamic buffers vfio/type1: Limit DMA mappings per container kconfig/[mn]conf: handle backspace (^H) key libata: fix using DMA buffers on stack scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN ceph: fix use-after-free on symlink traversal usb: u132-hcd: fix resource leak scsi: qla4xxx: fix a potential NULL pointer dereference net: ethernet: ti: fix possible object reference leak net: ibm: fix possible object reference leak net: xilinx: fix possible object reference leak net: ks8851: Set initial carrier state to down net: ks8851: Delay requesting IRQ until opened net: ks8851: Reassert reset pin if chip ID check fails net: ks8851: Dequeue RX packets explicitly ARM: dts: pfla02: increase phy reset duration usb: gadget: net2272: Fix net2272_dequeue() usb: gadget: net2280: Fix net2280_dequeue() usb: gadget: net2280: Fix overrun of OUT messages sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING qlcnic: Avoid potential NULL pointer dereference usbnet: ipheth: fix potential null pointer dereference in ipheth_carrier_set usbnet: ipheth: prevent TX queue timeouts when device not ready Documentation: Add nospectre_v1 parameter powerpc/fsl: Add FSL_PPC_BOOK3E as supported arch for nospectre_v2 boot arg powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup' powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit) powerpc/fsl: Emulate SPRN_BUCSR register powerpc/fsl: Flush branch predictor when entering KVM powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used ipv4: set the tcp_min_rtt_wlen range from 0 to one day net: stmmac: move stmmac_check_ether_addr() to driver probe team: fix possible recursive locking when add slaves ipv4: add sanity checks in ipv4_link_failure() Revert "block/loop: Use global lock for ioctl() operation." bpf: reject wrong sized filters earlier tipc: check link name with right length in tipc_nl_compat_link_set tipc: check bearer name with right length in tipc_nl_compat_bearer_enable netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON NFS: Forbid setting AF_INET6 to "struct sockaddr_in"->sin_family. fs/proc/proc_sysctl.c: Fix a NULL pointer dereference intel_th: gth: Fix an off-by-one in output unassigning slip: make slhc_free() silently accept an error pointer tipc: handle the err returned from cmd header function powerpc/fsl: Fix the flush of branch predictor. powerpc/security: Fix spectre_v2 reporting powerpc/fsl: Update Spectre v2 reporting powerpc/fsl: Flush the branch predictor at each kernel entry (64bit) powerpc/fsl: Add nospectre_v2 command line argument powerpc/fsl: Fix spectre_v2 mitigations reporting powerpc/fsl: Add macro to flush the branch predictor powerpc/fsl: Add infrastructure to fixup branch predictor flush powerpc: Avoid code patching freed init sections powerpc/powernv: Query firmware for count cache flush settings powerpc/pseries: Query hypervisor for count cache flush settings powerpc/64s: Add support for software count cache flush powerpc/64s: Add new security feature flags for count cache flush powerpc/asm: Add a patch_site macro & helpers for patching instructions powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E powerpc/64: Make meltdown reporting Book3S 64 specific powerpc/64: Call setup_barrier_nospec() from setup_arch() powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC powerpc/64: Make stf barrier PPC_BOOK3S_64 specific. powerpc/64: Disable the speculation barrier from the command line powerpc64s: Show ori31 availability in spectre_v1 sysfs file not v2 powerpc/64s: Enhance the information in cpu_show_spectre_v1() powerpc: Use barrier_nospec in copy_from_user() powerpc/64: Use barrier_nospec in syscall entry powerpc/64s: Enable barrier_nospec based on firmware settings powerpc/64s: Patch barrier_nospec in modules powerpc/64s: Add support for ori barrier_nospec patching powerpc/64s: Add barrier_nospec powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit powerpc/64s: Fix section mismatch warnings from setup_rfi_flush() powerpc/pseries: Restore default security feature flags on setup powerpc: Move default security feature flags powerpc/pseries: Fix clearing of security feature flags powerpc/64s: Wire up cpu_show_spectre_v2() powerpc/64s: Wire up cpu_show_spectre_v1() powerpc/pseries: Use the security flags in pseries_setup_rfi_flush() powerpc/powernv: Use the security flags in pnv_setup_rfi_flush() powerpc/64s: Enhance the information in cpu_show_meltdown() powerpc/64s: Move cpu_show_meltdown() powerpc/powernv: Set or clear security feature flags powerpc/pseries: Set or clear security feature flags powerpc: Add security feature flags for Spectre/Meltdown powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration powerpc/pseries: Add new H_GET_CPU_CHARACTERISTICS flags powerpc/rfi-flush: Differentiate enabled and patched flush types powerpc/rfi-flush: Always enable fallback flush on pseries powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again powerpc/rfi-flush: Move the logic to avoid a redo into the debugfs code powerpc/powernv: Support firmware disable of RFI flush powerpc/pseries: Support firmware disable of RFI flush powerpc/64s: Improve RFI L1-D cache flush fallback powerpc/xmon: Add RFI flush related fields to paca dump USB: Consolidate LPM checks to avoid enabling LPM twice USB: Add new USB LPM helpers sunrpc: don't mark uninitialised items as VALID. nfsd: Don't release the callback slot unless it was actually held ceph: fix ci->i_head_snapc leak ceph: ensure d_name stability in ceph_dentry_hash() sched/numa: Fix a possible divide-by-zero trace: Fix preempt_enable_no_resched() abuse MIPS: scall64-o32: Fix indirect syscall number load cifs: do not attempt cifs operation on smb2+ rename error KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number kbuild: simplify ld-option implementation ANDROID: cuttlefish_defconfig: Disable DEVTMPFS ANDROID: Move from clang r349610 to r353983c. f2fs: fix to avoid accessing xattr across the boundary f2fs: fix to avoid potential race on sbi->unusable_block_count access/update f2fs: add tracepoint for f2fs_filemap_fault() f2fs: introduce DATA_GENERIC_ENHANCE f2fs: fix to handle error in f2fs_disable_checkpoint() f2fs: remove redundant check in f2fs_file_write_iter() f2fs: fix to be aware of readonly device in write_checkpoint() f2fs: fix to skip recovery on readonly device f2fs: fix to consider multiple device for readonly check f2fs: relocate chksum_offset for large_nat_bitmap feature f2fs: allow unfixed f2fs_checkpoint.checksum_offset f2fs: Replace spaces with tab f2fs: insert space before the open parenthesis '(' f2fs: allow address pointer number of dnode aligning to specified size f2fs: introduce f2fs_read_single_page() for cleanup f2fs: mark is_extension_exist() inline f2fs: fix to set FI_UPDATE_WRITE correctly f2fs: fix to avoid panic in f2fs_inplace_write_data() f2fs: fix to do sanity check on valid block count of segment f2fs: fix to do sanity check on valid node/block count f2fs: fix to avoid panic in do_recover_data() f2fs: fix to do sanity check on free nid f2fs: fix to do checksum even if inode page is uptodate f2fs: fix to avoid panic in f2fs_remove_inode_page() f2fs: fix to clear dirty inode in error path of f2fs_iget() f2fs: remove new blank line of f2fs kernel message f2fs: fix wrong __is_meta_io() macro f2fs: fix to avoid panic in dec_valid_node_count() f2fs: fix to avoid panic in dec_valid_block_count() f2fs: fix to use inline space only if inline_xattr is enable f2fs: fix to retrieve inline xattr space f2fs: fix error path of recovery f2fs: fix to avoid deadloop in foreground GC f2fs: data: fix warning Using plain integer as NULL pointer f2fs: add tracepoint for f2fs_file_write_iter() f2fs: add comment for conditional compilation statement f2fs: fix potential recursive call when enabling data_flush f2fs: improve discard handling with multi-device volumes f2fs: Reduce zoned block device memory usage f2fs: Fix use of number of devices Sleepable function handle_lmk_event() is called in atomic context, so ignored the commit "ANDROID: Communicates LMK events to userland where they can be logged" Conflicts: arch/powerpc/include/asm/uaccess.h kernel/cpu.c kernel/irq/manage.c kernel/time/timer_stats.c net/ipv4/sysctl_net_ipv4.c Change-Id: I3e5bd447057b44a28fc5000403198ae0fd644480 Signed-off-by:Srinivasarao P <spathi@codeaurora.org>