* refs/heads/tmp-5cc8c2e
Linux 4.4.110
kaiser: Set _PAGE_NX only if supported
x86/kasan: Clear kasan_zero_page after TLB flush
x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
x86, vdso, pvclock: Simplify and speed up the vdso pvclock reader
KPTI: Report when enabled
KPTI: Rename to PAGE_TABLE_ISOLATION
x86/kaiser: Move feature detection up
kaiser: disabled on Xen PV
x86/kaiser: Reenable PARAVIRT
x86/paravirt: Dont patch flush_tlb_single
kaiser: kaiser_flush_tlb_on_return_to_user() check PCID
kaiser: asm/tlbflush.h handle noPGE at lower level
kaiser: drop is_atomic arg to kaiser_pagetable_walk()
kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush
x86/kaiser: Check boottime cmdline params
x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling
kaiser: add "nokaiser" boot option, using ALTERNATIVE
kaiser: fix unlikely error in alloc_ldt_struct()
kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls
kaiser: paranoid_entry pass cr3 need to paranoid_exit
kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user
kaiser: PCID 0 for kernel and 128 for user
kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user
kaiser: enhanced by kernel and user PCIDs
kaiser: vmstat show NR_KAISERTABLE as nr_overhead
kaiser: delete KAISER_REAL_SWITCH option
kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET
kaiser: cleanups while trying for gold link
kaiser: kaiser_remove_mapping() move along the pgd
kaiser: tidied up kaiser_add/remove_mapping slightly
kaiser: tidied up asm/kaiser.h somewhat
kaiser: ENOMEM if kaiser_pagetable_walk() NULL
kaiser: fix perf crashes
kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER
kaiser: KAISER depends on SMP
kaiser: fix build and FIXME in alloc_ldt_struct()
kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
kaiser: do not set _PAGE_NX on pgd_none
kaiser: merged update
KAISER: Kernel Address Isolation
x86/boot: Add early cmdline parsing for options with arguments
ANDROID: sdcardfs: Add default_normal option
ANDROID: sdcardfs: notify lower file of opens
Conflicts:
kernel/fork.c
Change-Id: I9c8c12e63321d79dc2c89fb470ca8de587366911
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
* refs/heads/tmp-8cbe01c
Linux 4.4.109
mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP
n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD)
x86/smpboot: Remove stale TLB flush invocations
nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick()
usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
USB: Fix off by one in type-specific length check of BOS SSP capability
usb: add RESET_RESUME for ELSA MicroLink 56K
usb: Add device quirk for Logitech HD Pro Webcam C925e
USB: serial: option: adding support for YUGA CLM920-NC5
USB: serial: option: add support for Telit ME910 PID 0x1101
USB: serial: qcserial: add Sierra Wireless EM7565
USB: serial: ftdi_sio: add id for Airbus DS P8GR
usbip: vhci: stop printing kernel pointer addresses in messages
usbip: stub: stop printing kernel pointer addresses in messages
usbip: fix usbip bind writing random string after command in match_busid
sock: free skb in skb_complete_tx_timestamp on error
net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
net: Fix double free and memory corruption in get_net_ns_by_id()
net: bridge: fix early call to br_stp_change_bridge_id and plug newlink leaks
ipv4: Fix use-after-free when flushing FIB tables
sctp: Replace use of sockets_allocated with specified macro.
net: mvmdio: disable/unprepare clocks in EPROBE_DEFER case
net: ipv4: fix for a race condition in raw_sendmsg
tg3: Fix rx hang on MTU change with 5717/5719
tcp md5sig: Use skb's saddr when replying to an incoming segment
net: reevalulate autoflowlabel setting after sysctl setting
net: qmi_wwan: add Sierra EM7565 1199:9091
netlink: Add netns check on taps
net: igmp: Use correct source address on IGMPv3 reports
ipv6: mcast: better catch silly mtu values
ipv4: igmp: guard against silly MTU values
kbuild: add '-fno-stack-check' to kernel build options
x86/mm/64: Fix reboot interaction with CR4.PCIDE
x86/mm: Enable CR4.PCIDE on supported systems
x86/mm: Add the 'nopcid' boot option to turn off PCID
x86/mm: Disable PCID on 32-bit kernels
x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code
x86/mm: Reimplement flush_tlb_page() using flush_tlb_mm_range()
x86/mm: Make flush_tlb_mm_range() more predictable
x86/mm: Remove flush_tlb() and flush_tlb_current_task()
x86/vm86/32: Switch to flush_tlb_mm_range() in mark_screen_rdonly()
ALSA: hda - fix headset mic detection issue on a Dell machine
ALSA: hda: Drop useless WARN_ON()
ASoC: twl4030: fix child-node lookup
ASoC: fsl_ssi: AC'97 ops need regmap, clock and cleaning up on failure
iw_cxgb4: Only validate the MSN for successful completions
ring-buffer: Mask out the info bits when returning buffer page length
tracing: Fix crash when it fails to alloc ring buffer
tracing: Fix possible double free on failure of allocating trace buffer
tracing: Remove extra zeroing out of the ring buffer page
net: mvneta: clear interface link status on port disable
powerpc/perf: Dereference BHRB entries safely
kvm: x86: fix RSM when PCID is non-zero
KVM: X86: Fix load RFLAGS w/o the fixed bit
spi: xilinx: Detect stall with Unknown commands
parisc: Hide Diva-built-in serial aux and graphics card
PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
ALSA: usb-audio: Fix the missing ctl name suffix at parsing SU
ALSA: rawmidi: Avoid racy info ioctl via ctl device
mfd: twl6040: Fix child-node lookup
mfd: twl4030-audio: Fix sibling-node lookup
mfd: cros ec: spi: Don't send first message too soon
crypto: mcryptd - protect the per-CPU queue with a lock
ACPI: APEI / ERST: Fix missing error handling in erst_reader()
Change-Id: I3823f793c0c85d1639e9be10358cf70cfcd13afc
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
* refs/heads/tmp-55b3b8c
Linux 4.4.108
alpha: fix build failures
ALSA: hda - Fix yet another i915 pointer leftover in error path
ALSA: hda - Degrade i915 binding failure message
ALSA: hda - Clear the leftover component assignment at snd_hdac_i915_exit()
Revert "Bluetooth: btusb: driver to enable the usb-wakeup feature"
MIPS: math-emu: Fix final emulation phase for certain instructions
thermal: hisilicon: Handle return value of clk_prepare_enable
cpuidle: fix broadcast control when broadcast can not be entered
rtc: set the alarm to the next expiring timer
tcp: fix under-evaluated ssthresh in TCP Vegas
fm10k: ensure we process SM mbx when processing VF mbx
scsi: lpfc: PLOGI failures during NPIV testing
scsi: lpfc: Fix secure firmware updates
PCI/AER: Report non-fatal errors only to the affected endpoint
ixgbe: fix use of uninitialized padding
igb: check memory allocation failure
PCI: Create SR-IOV virtfn/physfn links before attaching driver
scsi: mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive
scsi: cxgb4i: fix Tx skb leak
PCI: Avoid bus reset if bridge itself is broken
net: phy: at803x: Change error to EINVAL for invalid MAC
rtc: pl031: make interrupt optional
crypto: crypto4xx - increase context and scatter ring buffer elements
backlight: pwm_bl: Fix overflow condition
bnxt_en: Fix NULL pointer dereference in reopen failure path
cpuidle: powernv: Pass correct drv->cpumask for registration
ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory
netfilter: nfnetlink_queue: fix secctx memory leak
xhci: plat: Register shutdown for xhci_plat
isdn: kcapi: avoid uninitialized data
KVM: pci-assign: do not map smm memory slot pages in vt-d page tables
ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
netfilter: nf_nat_snmp: Fix panic when snmp_trap_helper fails to register
netfilter: nfnl_cthelper: fix a race when walk the nf_ct_helper_hash table
irda: vlsi_ir: fix check for DMA mapping errors
RDMA/iser: Fix possible mr leak on device removal event
i40e: Do not enable NAPI on q_vectors that have no rings
net: Do not allow negative values for busy_read and busy_poll sysctl interfaces
bna: avoid writing uninitialized data into hw registers
s390/qeth: no ETH header for outbound AF_IUCV
r8152: prevent the driver from transmitting packets with carrier off
HID: xinmo: fix for out of range for THT 2P arcade controller.
hwmon: (asus_atk0110) fix uninitialized data access
ARM: dts: ti: fix PCI bus dtc warnings
KVM: VMX: Fix enable VPID conditions
KVM: x86: correct async page present tracepoint
scsi: lpfc: Fix PT2PT PRLI reject
pinctrl: st: add irq_request/release_resources callbacks
inet: frag: release spinlock before calling icmp_send()
netfilter: nfnl_cthelper: Fix memory leak
netfilter: nfnl_cthelper: fix runtime expectation policy updates
usb: gadget: udc: remove pointer dereference after free
usb: gadget: f_uvc: Sanity check wMaxPacketSize for SuperSpeed
net: qmi_wwan: Add USB IDs for MDM6600 modem on Motorola Droid 4
bna: integer overflow bug in debugfs
sch_dsmark: fix invalid skb_cow() usage
crypto: deadlock between crypto_alg_sem/rtnl_mutex/genl_mutex
r8152: fix the list rx_done may be used without initialization
cpuidle: Validate cpu_dev in cpuidle_add_sysfs()
arm: kprobes: Align stack to 8-bytes in test code
arm: kprobes: Fix the return address of multiple kretprobes
ALSA: hda - add support for docking station for HP 840 G3
ALSA: hda - add support for docking station for HP 820 G2
x86/irq: Do not substract irq_tlb_count from irq_call_count
sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off()
ARM: Hide finish_arch_post_lock_switch() from modules
x86/mm, sched/core: Turn off IRQs in switch_mm()
x86/mm, sched/core: Uninline switch_mm()
x86/mm: Build arch/x86/mm/tlb.c even on !SMP
sched/core: Add switch_mm_irqs_off() and use it in the scheduler
mm/mmu_context, sched/core: Fix mmu_context.h assumption
mm/rmap: batched invalidations should use existing api
x86/mm: If INVPCID is available, use it to flush global mappings
x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID
x86/mm: Fix INVPCID asm constraint
x86/mm: Add INVPCID helpers
cxl: Check if vphb exists before iterating over AFU devices
arm64: Initialise high_memory global variable earlier
ANDROID: binder: Remove obsolete proc waitqueue.
Change-Id: Ie954ccd1dbd861672345bb0ee879273be4d0a441
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
* refs/heads/tmp-79f138a
Linux 4.4.107
ath9k: fix tx99 potential info leak
IB/ipoib: Grab rtnl lock on heavy flush when calling ndo_open/stop
RDMA/cma: Avoid triggering undefined behavior
macvlan: Only deliver one copy of the frame to the macvlan interface
udf: Avoid overflow when session starts at large offset
scsi: bfa: integer overflow in debugfs
scsi: sd: change allow_restart to bool in sysfs interface
scsi: sd: change manage_start_stop to bool in sysfs interface
vt6655: Fix a possible sleep-in-atomic bug in vt6655_suspend
scsi: scsi_devinfo: Add REPORTLUN2 to EMC SYMMETRIX blacklist entry
raid5: Set R5_Expanded on parity devices as well as data.
pinctrl: adi2: Fix Kconfig build problem
usb: musb: da8xx: fix babble condition handling
tty fix oops when rmmod 8250
powerpc/perf/hv-24x7: Fix incorrect comparison in memord
scsi: hpsa: destroy sas transport properties before scsi_host
scsi: hpsa: cleanup sas_phy structures in sysfs when unloading
PCI: Detach driver before procfs & sysfs teardown on device remove
xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real
xfs: fix log block underflow during recovery cycle verification
l2tp: cleanup l2tp_tunnel_delete calls
bcache: fix wrong cache_misses statistics
bcache: explicitly destroy mutex while exiting
GFS2: Take inode off order_write list when setting jdata flag
thermal/drivers/step_wise: Fix temperature regulation misbehavior
ppp: Destroy the mutex when cleanup
clk: tegra: Fix cclk_lp divisor register
clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
clk: mediatek: add the option for determining PLL source clock
mm: Handle 0 flags in _calc_vm_trans() macro
crypto: tcrypt - fix buffer lengths in test_aead_speed()
arm-ccn: perf: Prevent module unload while PMU is in use
target/file: Do not return error for UNMAP if length is zero
target:fix condition return in core_pr_dump_initiator_port()
iscsi-target: fix memory leak in lio_target_tiqn_addtpg()
target/iscsi: Fix a race condition in iscsit_add_reject_from_cmd()
powerpc/ipic: Fix status get and status clear
powerpc/opal: Fix EBUSY bug in acquiring tokens
netfilter: ipvs: Fix inappropriate output of procfs
powerpc/powernv/cpufreq: Fix the frequency read by /proc/cpuinfo
PCI/PME: Handle invalid data when reading Root Status
dmaengine: ti-dma-crossbar: Correct am335x/am43xx mux value type
rtc: pcf8563: fix output clock rate
video: fbdev: au1200fb: Return an error code if a memory allocation fails
video: fbdev: au1200fb: Release some resources if a memory allocation fails
video: udlfb: Fix read EDID timeout
fbdev: controlfb: Add missing modes to fix out of bounds access
sfc: don't warn on successful change of MAC
target: fix race during implicit transition work flushes
target: fix ALUA transition timeout handling
target: Use system workqueue for ALUA transitions
btrfs: add missing memset while reading compressed inline extents
NFSv4.1 respect server's max size in CREATE_SESSION
efi/esrt: Cleanup bad memory map log messages
perf symbols: Fix symbols__fixup_end heuristic for corner cases
net/mlx4_core: Avoid delays during VF driver device shutdown
afs: Fix afs_kill_pages()
afs: Fix page leak in afs_write_begin()
afs: Populate and use client modification time
afs: Fix the maths in afs_fs_store_data()
afs: Prevent callback expiry timer overflow
afs: Migrate vlocation fields to 64-bit
afs: Flush outstanding writes when an fd is closed
afs: Adjust mode bits processing
afs: Populate group ID from vnode status
afs: Fix missing put_page()
drm/radeon: reinstate oland workaround for sclk
mmc: mediatek: Fixed bug where clock frequency could be set wrong
sched/deadline: Use deadline instead of period when calculating overflow
sched/deadline: Throttle a constrained deadline task activated after the deadline
sched/deadline: Make sure the replenishment timer fires in the next period
drm/radeon/si: add dpm quirk for Oland
fjes: Fix wrong netdevice feature flags
scsi: hpsa: limit outstanding rescans
scsi: hpsa: update check for logical volume status
openrisc: fix issue handling 8 byte get_user calls
intel_th: pci: Add Gemini Lake support
mlxsw: reg: Fix SPVMLR max record count
mlxsw: reg: Fix SPVM max record count
net: Resend IGMP memberships upon peer notification.
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
net: wimax/i2400m: fix NULL-deref at probe
writeback: fix memory leak in wb_queue_work()
netfilter: bridge: honor frag_max_size when refragmenting
drm/omap: fix dmabuf mmap for dma_alloc'ed buffers
Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
NFSD: fix nfsd_reset_versions for NFSv4.
NFSD: fix nfsd_minorversion(.., NFSD_AVAIL)
net: bcmgenet: Power up the internal PHY before probing the MII
net: bcmgenet: power down internal phy if open or resume fails
net: bcmgenet: reserved phy revisions must be checked first
net: bcmgenet: correct MIB access of UniMAC RUNT counters
net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values
net: initialize msg.msg_flags in recvfrom
userfaultfd: selftest: vm: allow to build in vm/ directory
userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE
md-cluster: free md_cluster_info if node leave cluster
usb: phy: isp1301: Add OF device ID table
mac80211: Fix addition of mesh configuration element
KEYS: add missing permission check for request_key() destination
ext4: fix crash when a directory's i_size is too small
ext4: fix fdatasync(2) after fallocate(2) operation
dmaengine: dmatest: move callback wait queue to thread context
sched/rt: Do not pull from current CPU if only one CPU to pull
xhci: Don't add a virt_dev to the devs array before it's fully allocated
Bluetooth: btusb: driver to enable the usb-wakeup feature
ceph: drop negative child dentries before try pruning inode's alias
usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer
USB: core: prevent malicious bNumInterfaces overflow
USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID
tracing: Allocate mask_str buffer dynamically
autofs: fix careless error in recent commit
crypto: salsa20 - fix blkcipher_walk API usage
crypto: hmac - require that the underlying hash algorithm is unkeyed
UPSTREAM: arm64: setup: introduce kaslr_offset()
UPSTREAM: kcov: fix comparison callback signature
UPSTREAM: kcov: support comparison operands collection
UPSTREAM: kcov: remove pointless current != NULL check
UPSTREAM: kcov: support compat processes
UPSTREAM: kcov: simplify interrupt check
UPSTREAM: kcov: make kcov work properly with KASLR enabled
UPSTREAM: kcov: add more missing includes
UPSTREAM: kcov: add missing #include <linux/sched.h>
UPSTREAM: kcov: properly check if we are in an interrupt
UPSTREAM: kcov: don't profile branches in kcov
UPSTREAM: kcov: don't trace the code coverage code
BACKPORT: kernel: add kcov code coverage
Conflicts:
Makefile
mm/kasan/Makefile
scripts/Makefile.lib
Change-Id: Ic19953706ea2e700621b0ba94d1c90bbffa4f471
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
* refs/heads/tmp-2fea039
Linux 4.4.106
usb: gadget: ffs: Forbid usb_ep_alloc_request from sleeping
arm: KVM: Fix VTTBR_BADDR_MASK BUG_ON off-by-one
Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers"
Revert "x86/efi: Hoist page table switching code into efi_call_virt()"
Revert "x86/efi: Build our own page table structures"
net/packet: fix a race in packet_bind() and packet_notifier()
packet: fix crash in fanout_demux_rollover()
sit: update frag_off info
rds: Fix NULL pointer dereference in __rds_rdma_map
tipc: fix memory leak in tipc_accept_from_sock()
more bio_map_user_iov() leak fixes
s390: always save and restore all registers on context switch
ipmi: Stop timers before cleaning up the module
audit: ensure that 'audit=1' actually enables audit for PID 1
ipvlan: fix ipv6 outbound device
afs: Connect up the CB.ProbeUuid
IB/mlx5: Assign send CQ and recv CQ of UMR QP
IB/mlx4: Increase maximal message size under UD QP
xfrm: Copy policy family in clone_policy
jump_label: Invoke jump_label_test() via early_initcall()
atm: horizon: Fix irq release error
sctp: use the right sk after waking up from wait_buf sleep
sctp: do not free asoc when it is already dead in sctp_sendmsg
sparc64/mm: set fields in deferred pages
block: wake up all tasks blocked in get_request()
sunrpc: Fix rpc_task_begin trace point
NFS: Fix a typo in nfs_rename()
dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0
lib/genalloc.c: make the avail variable an atomic_long_t
route: update fnhe_expires for redirect when the fnhe exists
route: also update fnhe_genid when updating a route cache
mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl()
kbuild: pkg: use --transform option to prefix paths in tar
EDAC, i5000, i5400: Fix definition of NRECMEMB register
EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro
powerpc/powernv/ioda2: Gracefully fail if too many TCE levels requested
drm/amd/amdgpu: fix console deadlock if late init failed
axonram: Fix gendisk handling
netfilter: don't track fragmented packets
zram: set physical queue limits to avoid array out of bounds accesses
i2c: riic: fix restart condition
crypto: s5p-sss - Fix completing crypto request in IRQ handler
ipv6: reorder icmpv6_init() and ip6_mr_init()
bnx2x: do not rollback VF MAC/VLAN filters we did not configure
bnx2x: fix possible overrun of VFPF multicast addresses array
bnx2x: prevent crash when accessing PTP with interface down
spi_ks8995: fix "BUG: key accdaa28 not in .data!"
arm64: KVM: Survive unknown traps from guests
arm: KVM: Survive unknown traps from guests
KVM: nVMX: reset nested_run_pending if the vCPU is going to be reset
irqchip/crossbar: Fix incorrect type of register size
scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters
workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq
libata: drop WARN from protocol error in ata_sff_qc_issue()
kvm: nVMX: VMCLEAR should not cause the vCPU to shut down
USB: gadgetfs: Fix a potential memory leak in 'dev_config()'
usb: gadget: configs: plug memory leak
HID: chicony: Add support for another ASUS Zen AiO keyboard
gpio: altera: Use handle_level_irq when configured as a level_high
ARM: OMAP2+: Release device node after it is no longer needed.
ARM: OMAP2+: Fix device node reference counts
module: set __jump_table alignment to 8
selftest/powerpc: Fix false failures for skipped tests
x86/hpet: Prevent might sleep splat on resume
ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
vti6: Don't report path MTU below IPV6_MIN_MTU.
Revert "s390/kbuild: enable modversions for symbols exported from asm"
Revert "spi: SPI_FSL_DSPI should depend on HAS_DMA"
Revert "drm/armada: Fix compile fail"
mm: drop unused pmdp_huge_get_and_clear_notify()
thp: fix MADV_DONTNEED vs. numa balancing race
thp: reduce indentation level in change_huge_pmd()
scsi: storvsc: Workaround for virtual DVD SCSI version
ARM: avoid faulting on qemu
ARM: BUG if jumping to usermode address in kernel mode
arm64: fpsimd: Prevent registers leaking from dead tasks
KVM: VMX: remove I/O port 0x80 bypass on Intel hosts
arm64: KVM: fix VTTBR_BADDR_MASK BUG_ON off-by-one
media: dvb: i2c transfers over usb cannot be done from stack
drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU
drm: extra printk() wrapper macros
kdb: Fix handling of kallsyms_symbol_next() return value
s390: fix compat system call table
iommu/vt-d: Fix scatterlist offset handling
ALSA: usb-audio: Add check return value for usb_string()
ALSA: usb-audio: Fix out-of-bound error
ALSA: seq: Remove spurious WARN_ON() at timer check
ALSA: pcm: prevent UAF in snd_pcm_info
x86/PCI: Make broadcom_postcore_init() check acpi_disabled
X.509: reject invalid BIT STRING for subjectPublicKey
ASN.1: check for error from ASN1_OP_END__ACT actions
ASN.1: fix out-of-bounds read when parsing indefinite length item
efi: Move some sysfs files to be read-only by root
scsi: libsas: align sata_device's rps_resp on a cacheline
isa: Prevent NULL dereference in isa_bus driver callbacks
hv: kvp: Avoid reading past allocated blocks from KVP file
virtio: release virtio index when fail to device_register
can: usb_8dev: cancel urb on -EPIPE and -EPROTO
can: esd_usb2: cancel urb on -EPIPE and -EPROTO
can: ems_usb: cancel urb on -EPIPE and -EPROTO
can: kvaser_usb: cancel urb on -EPIPE and -EPROTO
can: kvaser_usb: ratelimit errors if incomplete messages are received
can: kvaser_usb: Fix comparison bug in kvaser_usb_read_bulk_callback()
can: kvaser_usb: free buf in error paths
can: ti_hecc: Fix napi poll return value for repoll
BACKPORT: irq: Make the irqentry text section unconditional
UPSTREAM: arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections
UPSTREAM: x86, kasan, ftrace: Put APIC interrupt handlers into .irqentry.text
UPSTREAM: kasan: make get_wild_bug_type() static
UPSTREAM: kasan: separate report parts by empty lines
UPSTREAM: kasan: improve double-free report format
UPSTREAM: kasan: print page description after stacks
UPSTREAM: kasan: improve slab object description
UPSTREAM: kasan: change report header
UPSTREAM: kasan: simplify address description logic
UPSTREAM: kasan: change allocation and freeing stack traces headers
UPSTREAM: kasan: unify report headers
UPSTREAM: kasan: introduce helper functions for determining bug type
BACKPORT: kasan: report only the first error by default
UPSTREAM: kasan: fix races in quarantine_remove_cache()
UPSTREAM: kasan: resched in quarantine_remove_cache()
BACKPORT: kasan, sched/headers: Uninline kasan_enable/disable_current()
BACKPORT: kasan: drain quarantine of memcg slab objects
UPSTREAM: kasan: eliminate long stalls during quarantine reduction
UPSTREAM: kasan: support panic_on_warn
UPSTREAM: x86/suspend: fix false positive KASAN warning on suspend/resume
UPSTREAM: kasan: support use-after-scope detection
UPSTREAM: kasan/tests: add tests for user memory access functions
UPSTREAM: mm, kasan: add a ksize() test
UPSTREAM: kasan: test fix: warn if the UAF could not be detected in kmalloc_uaf2
UPSTREAM: kasan: modify kmalloc_large_oob_right(), add kmalloc_pagealloc_oob_right()
UPSTREAM: lib/stackdepot: export save/fetch stack for drivers
UPSTREAM: lib/stackdepot.c: bump stackdepot capacity from 16MB to 128MB
BACKPORT: kprobes: Unpoison stack in jprobe_return() for KASAN
UPSTREAM: kasan: remove the unnecessary WARN_ONCE from quarantine.c
UPSTREAM: kasan: avoid overflowing quarantine size on low memory systems
UPSTREAM: kasan: improve double-free reports
BACKPORT: mm: coalesce split strings
BACKPORT: mm/kasan: get rid of ->state in struct kasan_alloc_meta
UPSTREAM: mm/kasan: get rid of ->alloc_size in struct kasan_alloc_meta
UPSTREAM: mm: kasan: remove unused 'reserved' field from struct kasan_alloc_meta
UPSTREAM: mm/kasan, slub: don't disable interrupts when object leaves quarantine
UPSTREAM: mm/kasan: don't reduce quarantine in atomic contexts
UPSTREAM: mm/kasan: fix corruptions and false positive reports
UPSTREAM: lib/stackdepot.c: use __GFP_NOWARN for stack allocations
BACKPORT: mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
UPSTREAM: kasan/quarantine: fix bugs on qlist_move_cache()
UPSTREAM: mm: mempool: kasan: don't poot mempool objects in quarantine
UPSTREAM: kasan: change memory hot-add error messages to info messages
BACKPORT: mm/kasan: add API to check memory regions
UPSTREAM: mm/kasan: print name of mem[set,cpy,move]() caller in report
UPSTREAM: mm: kasan: initial memory quarantine implementation
UPSTREAM: lib/stackdepot: avoid to return 0 handle
UPSTREAM: lib/stackdepot.c: allow the stack trace hash to be zero
UPSTREAM: mm, kasan: fix compilation for CONFIG_SLAB
BACKPORT: mm, kasan: stackdepot implementation. Enable stackdepot for SLAB
BACKPORT: mm, kasan: add GFP flags to KASAN API
UPSTREAM: mm, kasan: SLAB support
UPSTREAM: mm/slab: align cache size first before determination of OFF_SLAB candidate
UPSTREAM: mm/slab: use more appropriate condition check for debug_pagealloc
UPSTREAM: mm/slab: factor out debugging initialization in cache_init_objs()
UPSTREAM: mm/slab: remove object status buffer for DEBUG_SLAB_LEAK
UPSTREAM: mm/slab: alternative implementation for DEBUG_SLAB_LEAK
UPSTREAM: mm/slab: clean up DEBUG_PAGEALLOC processing code
UPSTREAM: mm/slab: activate debug_pagealloc in SLAB when it is actually enabled
sched: EAS/WALT: Don't take into account of running task's util
BACKPORT: schedutil: Reset cached freq if it is not in sync with next_freq
UPSTREAM: kasan: add functions to clear stack poison
Conflicts:
arch/arm/include/asm/kvm_arm.h
arch/arm64/kernel/vmlinux.lds.S
include/linux/kasan.h
kernel/softirq.c
lib/Kconfig
lib/Kconfig.kasan
lib/Makefile
lib/stackdepot.c
mm/kasan/kasan.c
sound/usb/mixer.c
Change-Id: If70ced6da5f19be3dd92d10a8d8cd4d5841e5870
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
Add a sysctl nf_ipv4_defrag_skip to skip defragmentation per
interface. This is set 0 to preserve existing behavior (always
defrag per interface).
This is useful for pure ipv4 forwarding scenarios (without NAT)
in conjunction with xfrm. It appears that network stack defrags
the packets and then forwards them to xfrm which then encrypts
and then later fragments them on a different boundary compared
to the source.
CRs-Fixed: 2140310
Change-Id: I11956284a9692579274e8626f61cc6432232254c
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
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Merge 4.4.110 into android-4.4
Changes in 4.4.110
x86/boot: Add early cmdline parsing for options with arguments
KAISER: Kernel Address Isolation
kaiser: merged update
kaiser: do not set _PAGE_NX on pgd_none
kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE
kaiser: fix build and FIXME in alloc_ldt_struct()
kaiser: KAISER depends on SMP
kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER
kaiser: fix perf crashes
kaiser: ENOMEM if kaiser_pagetable_walk() NULL
kaiser: tidied up asm/kaiser.h somewhat
kaiser: tidied up kaiser_add/remove_mapping slightly
kaiser: kaiser_remove_mapping() move along the pgd
kaiser: cleanups while trying for gold link
kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET
kaiser: delete KAISER_REAL_SWITCH option
kaiser: vmstat show NR_KAISERTABLE as nr_overhead
kaiser: enhanced by kernel and user PCIDs
kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user
kaiser: PCID 0 for kernel and 128 for user
kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user
kaiser: paranoid_entry pass cr3 need to paranoid_exit
kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls
kaiser: fix unlikely error in alloc_ldt_struct()
kaiser: add "nokaiser" boot option, using ALTERNATIVE
x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling
x86/kaiser: Check boottime cmdline params
kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush
kaiser: drop is_atomic arg to kaiser_pagetable_walk()
kaiser: asm/tlbflush.h handle noPGE at lower level
kaiser: kaiser_flush_tlb_on_return_to_user() check PCID
x86/paravirt: Dont patch flush_tlb_single
x86/kaiser: Reenable PARAVIRT
kaiser: disabled on Xen PV
x86/kaiser: Move feature detection up
KPTI: Rename to PAGE_TABLE_ISOLATION
KPTI: Report when enabled
x86, vdso, pvclock: Simplify and speed up the vdso pvclock reader
x86/vdso: Get pvclock data from the vvar VMA instead of the fixmap
x86/kasan: Clear kasan_zero_page after TLB flush
kaiser: Set _PAGE_NX only if supported
Linux 4.4.110
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Kaiser only needs to map one page of the stack; and
kernel/fork.c did not build on powerpc (no __PAGE_KERNEL).
It's all cleaner if linux/kaiser.h provides kaiser_map_thread_stack()
and kaiser_unmap_thread_stack() wrappers around asm/kaiser.h's
kaiser_add_mapping() and kaiser_remove_mapping(). And use
linux/kaiser.h in init/main.c to avoid the #ifdefs there.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch introduces our implementation of KAISER (Kernel Address Isolation to
have Side-channels Efficiently Removed), a kernel isolation technique to close
hardware side channels on kernel address information.
More information about the patch can be found on:
https://github.com/IAIK/KAISER
From: Richard Fellner <richard.fellner@student.tugraz.at>
From: Daniel Gruss <daniel.gruss@iaik.tugraz.at>
X-Subject: [RFC, PATCH] x86_64: KAISER - do not map kernel in user mode
Date: Thu, 4 May 2017 14:26:50 +0200
Link: http://marc.info/?l=linux-kernel&m=149390087310405&w=2
Kaiser-4.10-SHA1: c4b1831d44c6144d3762ccc72f0c4e71a0c713e5
To: <linux-kernel@vger.kernel.org>
To: <kernel-hardening@lists.openwall.com>
Cc: <clementine.maurice@iaik.tugraz.at>
Cc: <moritz.lipp@iaik.tugraz.at>
Cc: Michael Schwarz <michael.schwarz@iaik.tugraz.at>
Cc: Richard Fellner <richard.fellner@student.tugraz.at>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: <kirill.shutemov@linux.intel.com>
Cc: <anders.fogh@gdata-adan.de>
After several recent works [1,2,3] KASLR on x86_64 was basically
considered dead by many researchers. We have been working on an
efficient but effective fix for this problem and found that not mapping
the kernel space when running in user mode is the solution to this
problem [4] (the corresponding paper [5] will be presented at ESSoS17).
With this RFC patch we allow anybody to configure their kernel with the
flag CONFIG_KAISER to add our defense mechanism.
If there are any questions we would love to answer them.
We also appreciate any comments!
Cheers,
Daniel (+ the KAISER team from Graz University of Technology)
[1] http://www.ieee-security.org/TC/SP2013/papers/4977a191.pdf
[2] https://www.blackhat.com/docs/us-16/materials/us-16-Fogh-Using-Undocumented-CPU-Behaviour-To-See-Into-Kernel-Mode-And-Break-KASLR-In-The-Process.pdf
[3] https://www.blackhat.com/docs/us-16/materials/us-16-Jang-Breaking-Kernel-Address-Space-Layout-Randomization-KASLR-With-Intel-TSX.pdf
[4] https://github.com/IAIK/KAISER
[5] https://gruss.cc/files/kaiser.pdf
[patch based also on
https://raw.githubusercontent.com/IAIK/KAISER/master/KAISER/0001-KAISER-Kernel-Address-Isolation.patch]
Signed-off-by: Richard Fellner <richard.fellner@student.tugraz.at>
Signed-off-by: Moritz Lipp <moritz.lipp@iaik.tugraz.at>
Signed-off-by: Daniel Gruss <daniel.gruss@iaik.tugraz.at>
Signed-off-by: Michael Schwarz <michael.schwarz@iaik.tugraz.at>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
User space tasks will have the same semantics for hotplug and isolation.
Currently the sched_getaffinity() include isolated CPU on which user
space tasks are forbidden to run. So fix this by excluding isolated cpus
while returning cpu mask for user space tasks in sched_getaffinity().
Change-Id: Ib6a8ca864754f73bbaf809c3ceaef5f91d567ca9
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
commit 3bda2b55b4 ("Merge android-4.4.96 (aed4c54) into msm-4.4")
replaced HMP scheduler check_for_migration() implementation with
EAS scheduler implementation. This breaks HMP scheduler upmgiration
functionality. Fix this by restoring the previous implementation.
Change-Id: I3221f3efe42e1e43f8009cfa52c11afbb9d9c5b3
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Update sched_get_task_cpu_cycles trace to include pid and name of the
task to help with debug better.
Change-Id: Ic307ebcf0a44c94bf0a2aa1a02b8aeff39010b29
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Truncating period to u32 could lead to incorrect results. Make it u64
instead.
Change-Id: I5224a943e64bc6d64b6c8e614a01f798a6cdc796
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
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Merge 4.4.109 into android-4.4
Changes in 4.4.109
ACPI: APEI / ERST: Fix missing error handling in erst_reader()
crypto: mcryptd - protect the per-CPU queue with a lock
mfd: cros ec: spi: Don't send first message too soon
mfd: twl4030-audio: Fix sibling-node lookup
mfd: twl6040: Fix child-node lookup
ALSA: rawmidi: Avoid racy info ioctl via ctl device
ALSA: usb-audio: Fix the missing ctl name suffix at parsing SU
PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
parisc: Hide Diva-built-in serial aux and graphics card
spi: xilinx: Detect stall with Unknown commands
KVM: X86: Fix load RFLAGS w/o the fixed bit
kvm: x86: fix RSM when PCID is non-zero
powerpc/perf: Dereference BHRB entries safely
net: mvneta: clear interface link status on port disable
tracing: Remove extra zeroing out of the ring buffer page
tracing: Fix possible double free on failure of allocating trace buffer
tracing: Fix crash when it fails to alloc ring buffer
ring-buffer: Mask out the info bits when returning buffer page length
iw_cxgb4: Only validate the MSN for successful completions
ASoC: fsl_ssi: AC'97 ops need regmap, clock and cleaning up on failure
ASoC: twl4030: fix child-node lookup
ALSA: hda: Drop useless WARN_ON()
ALSA: hda - fix headset mic detection issue on a Dell machine
x86/vm86/32: Switch to flush_tlb_mm_range() in mark_screen_rdonly()
x86/mm: Remove flush_tlb() and flush_tlb_current_task()
x86/mm: Make flush_tlb_mm_range() more predictable
x86/mm: Reimplement flush_tlb_page() using flush_tlb_mm_range()
x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code
x86/mm: Disable PCID on 32-bit kernels
x86/mm: Add the 'nopcid' boot option to turn off PCID
x86/mm: Enable CR4.PCIDE on supported systems
x86/mm/64: Fix reboot interaction with CR4.PCIDE
kbuild: add '-fno-stack-check' to kernel build options
ipv4: igmp: guard against silly MTU values
ipv6: mcast: better catch silly mtu values
net: igmp: Use correct source address on IGMPv3 reports
netlink: Add netns check on taps
net: qmi_wwan: add Sierra EM7565 1199:9091
net: reevalulate autoflowlabel setting after sysctl setting
tcp md5sig: Use skb's saddr when replying to an incoming segment
tg3: Fix rx hang on MTU change with 5717/5719
net: ipv4: fix for a race condition in raw_sendmsg
net: mvmdio: disable/unprepare clocks in EPROBE_DEFER case
sctp: Replace use of sockets_allocated with specified macro.
ipv4: Fix use-after-free when flushing FIB tables
net: bridge: fix early call to br_stp_change_bridge_id and plug newlink leaks
net: Fix double free and memory corruption in get_net_ns_by_id()
net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround
sock: free skb in skb_complete_tx_timestamp on error
usbip: fix usbip bind writing random string after command in match_busid
usbip: stub: stop printing kernel pointer addresses in messages
usbip: vhci: stop printing kernel pointer addresses in messages
USB: serial: ftdi_sio: add id for Airbus DS P8GR
USB: serial: qcserial: add Sierra Wireless EM7565
USB: serial: option: add support for Telit ME910 PID 0x1101
USB: serial: option: adding support for YUGA CLM920-NC5
usb: Add device quirk for Logitech HD Pro Webcam C925e
usb: add RESET_RESUME for ELSA MicroLink 56K
USB: Fix off by one in type-specific length check of BOS SSP capability
usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick()
x86/smpboot: Remove stale TLB flush invocations
n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD)
mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP
Linux 4.4.109
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 5d62c183f9e9df1deeea0906d099a94e8a43047a upstream.
The conditions in irq_exit() to invoke tick_nohz_irq_exit() which
subsequently invokes tick_nohz_stop_sched_tick() are:
if ((idle_cpu(cpu) && !need_resched()) || tick_nohz_full_cpu(cpu))
If need_resched() is not set, but a timer softirq is pending then this is
an indication that the softirq code punted and delegated the execution to
softirqd. need_resched() is not true because the current interrupted task
takes precedence over softirqd.
Invoking tick_nohz_irq_exit() in this case can cause an endless loop of
timer interrupts because the timer wheel contains an expired timer, but
softirqs are not yet executed. So it returns an immediate expiry request,
which causes the timer to fire immediately again. Lather, rinse and
repeat....
Prevent that by adding a check for a pending timer soft interrupt to the
conditions in tick_nohz_stop_sched_tick() which avoid calling
get_next_timer_interrupt(). That keeps the tick sched timer on the tick and
prevents a repetitive programming of an already expired timer.
Reported-by: Sebastian Siewior <bigeasy@linutronix.d>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272156050.2431@nanos
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 45d8b80c2ac5d21cd1e2954431fb676bc2b1e099 upstream.
Two info bits were added to the "commit" part of the ring buffer data page
when returned to be consumed. This was to inform the user space readers that
events have been missed, and that the count may be stored at the end of the
page.
What wasn't handled, was the splice code that actually called a function to
return the length of the data in order to zero out the rest of the page
before sending it up to user space. These data bits were returned with the
length making the value negative, and that negative value was not checked.
It was compared to PAGE_SIZE, and only used if the size was less than
PAGE_SIZE. Luckily PAGE_SIZE is unsigned long which made the compare an
unsigned compare, meaning the negative size value did not end up causing a
large portion of memory to be randomly zeroed out.
Fixes: 66a8cb95ed ("ring-buffer: Add place holder recording of dropped events")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 24f2aaf952ee0b59f31c3a18b8b36c9e3d3c2cf5 upstream.
Double free of the ring buffer happens when it fails to alloc new
ring buffer instance for max_buffer if TRACER_MAX_TRACE is configured.
The root cause is that the pointer is not set to NULL after the buffer
is freed in allocate_trace_buffers(), and the freeing of the ring
buffer is invoked again later if the pointer is not equal to Null,
as:
instance_mkdir()
|-allocate_trace_buffers()
|-allocate_trace_buffer(tr, &tr->trace_buffer...)
|-allocate_trace_buffer(tr, &tr->max_buffer...)
// allocate fail(-ENOMEM),first free
// and the buffer pointer is not set to null
|-ring_buffer_free(tr->trace_buffer.buffer)
// out_free_tr
|-free_trace_buffers()
|-free_trace_buffer(&tr->trace_buffer);
//if trace_buffer is not null, free again
|-ring_buffer_free(buf->buffer)
|-rb_free_cpu_buffer(buffer->buffers[cpu])
// ring_buffer_per_cpu is null, and
// crash in ring_buffer_per_cpu->pages
Link: http://lkml.kernel.org/r/20171226071253.8968-1-chunyan.zhang@spreadtrum.com
Fixes: 737223fbca ("tracing: Consolidate buffer allocation code")
Signed-off-by: Jing Xia <jing.xia@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4397f04575c44e1440ec2e49b6302785c95fd2f8 upstream.
Jing Xia and Chunyan Zhang reported that on failing to allocate part of the
tracing buffer, memory is freed, but the pointers that point to them are not
initialized back to NULL, and later paths may try to free the freed memory
again. Jing and Chunyan fixed one of the locations that does this, but
missed a spot.
Link: http://lkml.kernel.org/r/20171226071253.8968-1-chunyan.zhang@spreadtrum.com
Fixes: 737223fbca ("tracing: Consolidate buffer allocation code")
Reported-by: Jing Xia <jing.xia@spreadtrum.com>
Reported-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6b7e633fe9c24682df550e5311f47fb524701586 upstream.
The ring_buffer_read_page() takes care of zeroing out any extra data in the
page that it returns. There's no need to zero it out again from the
consumer. It was removed from one consumer of this function, but
read_buffers_splice_read() did not remove it, and worse, it contained a
nasty bug because of it.
Fixes: 2711ca237a ("ring-buffer: Move zeroing out excess in page to ring buffer code")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* refs/heads/tmp-9fbf3d7
Linux 4.4.103
Revert "sctp: do not peel off an assoc from one netns to another one"
xen: xenbus driver must not accept invalid transaction ids
s390/kbuild: enable modversions for symbols exported from asm
ASoC: wm_adsp: Don't overrun firmware file buffer when reading region data
btrfs: return the actual error value from from btrfs_uuid_tree_iterate
ASoC: rsnd: don't double free kctrl
netfilter: nf_tables: fix oob access
netfilter: nft_queue: use raw_smp_processor_id()
spi: SPI_FSL_DSPI should depend on HAS_DMA
staging: iio: cdc: fix improper return value
iio: light: fix improper return value
mac80211: Suppress NEW_PEER_CANDIDATE event if no room
mac80211: Remove invalid flag operations in mesh TSF synchronization
drm: Apply range restriction after color adjustment when allocation
ALSA: hda - Apply ALC269_FIXUP_NO_SHUTUP on HDA_FIXUP_ACT_PROBE
ath10k: set CTS protection VDEV param only if VDEV is up
ath10k: fix potential memory leak in ath10k_wmi_tlv_op_pull_fw_stats()
ath10k: ignore configuring the incorrect board_id
ath10k: fix incorrect txpower set by P2P_DEVICE interface
drm/armada: Fix compile fail
net: 3com: typhoon: typhoon_init_one: fix incorrect return values
net: 3com: typhoon: typhoon_init_one: make return values more specific
net: Allow IP_MULTICAST_IF to set index to L3 slave
dmaengine: zx: set DMA_CYCLIC cap_mask bit
PCI: Apply _HPX settings only to relevant devices
RDS: RDMA: return appropriate error on rdma map failures
e1000e: Separate signaling for link check/link up
e1000e: Fix return value test
e1000e: Fix error path in link detection
PM / OPP: Add missing of_node_put(np)
net/9p: Switch to wait_event_killable()
fscrypt: lock mutex before checking for bounce page pool
sched/rt: Simplify the IPI based RT balancing logic
media: v4l2-ctrl: Fix flags field on Control events
cx231xx-cards: fix NULL-deref on missing association descriptor
media: rc: check for integer overflow
media: Don't do DMA on stack for firmware upload in the AS102 driver
powerpc/signal: Properly handle return value from uprobe_deny_signal()
parisc: Fix validity check of pointer size argument in new CAS implementation
ixgbe: Fix skb list corruption on Power systems
fm10k: Use smp_rmb rather than read_barrier_depends
i40evf: Use smp_rmb rather than read_barrier_depends
ixgbevf: Use smp_rmb rather than read_barrier_depends
igbvf: Use smp_rmb rather than read_barrier_depends
igb: Use smp_rmb rather than read_barrier_depends
i40e: Use smp_rmb rather than read_barrier_depends
NFC: fix device-allocation error return
IB/srp: Avoid that a cable pull can trigger a kernel crash
IB/srpt: Do not accept invalid initiator port names
libnvdimm, namespace: make 'resource' attribute only readable by root
libnvdimm, namespace: fix label initialization to use valid seq numbers
clk: ti: dra7-atl-clock: fix child-node lookups
clk: ti: dra7-atl-clock: Fix of_node reference counting
SUNRPC: Fix tracepoint storage issues with svc_recv and svc_rqst_status
KVM: SVM: obey guest PAT
KVM: nVMX: set IDTR and GDTR limits when loading L1 host state
target: Fix QUEUE_FULL + SCSI task attribute handling
iscsi-target: Fix non-immediate TMR reference leak
fs/9p: Compare qid.path in v9fs_test_inode
fix a page leak in vhost_scsi_iov_to_sgl() error recovery
ALSA: hda/realtek - Fix ALC700 family no sound issue
ALSA: timer: Remove kernel warning at compat ioctl error paths
ALSA: usb-audio: Add sanity checks in v2 clock parsers
ALSA: usb-audio: Fix potential out-of-bound access at parsing SU
ALSA: usb-audio: Add sanity checks to FE parser
ALSA: pcm: update tstamp only if audio_tstamp changed
ext4: fix interaction between i_size, fallocate, and delalloc after a crash
ata: fixes kernel crash while tracing ata_eh_link_autopsy event
rtlwifi: fix uninitialized rtlhal->last_suspend_sec time
rtlwifi: rtl8192ee: Fix memory leak when loading firmware
nfsd: deal with revoked delegations appropriately
nfs: Fix ugly referral attributes
NFS: Fix typo in nomigration mount option
isofs: fix timestamps beyond 2027
bcache: check ca->alloc_thread initialized before wake up it
eCryptfs: use after free in ecryptfs_release_messaging()
nilfs2: fix race condition that causes file system corruption
autofs: don't fail mount for transient error
MIPS: BCM47XX: Fix LED inversion for WRT54GSv1
MIPS: Fix an n32 core file generation regset support regression
dm: fix race between dm_get_from_kobject() and __dm_destroy()
dm bufio: fix integer overflow when limiting maximum cache size
ALSA: hda: Add Raven PCI ID
MIPS: ralink: Fix typo in mt7628 pinmux function
MIPS: ralink: Fix MT7628 pinmux
ARM: 8721/1: mm: dump: check hardware RO bit for LPAE
ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE
x86/decoder: Add new TEST instruction pattern
lib/mpi: call cond_resched() from mpi_powm() loop
sched: Make resched_cpu() unconditional
vsock: use new wait API for vsock_stream_sendmsg()
AF_VSOCK: Shrink the area influenced by prepare_to_wait
ipv6: only call ip6_route_dev_notify() once for NETDEV_UNREGISTER
s390/disassembler: increase show_code buffer size
s390/disassembler: add missing end marker for e7 table
s390/runtime instrumention: fix possible memory corruption
s390: fix transactional execution control register handling
BACKPORT: time: Clean up CLOCK_MONOTONIC_RAW time handling
BACKPORT: time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting
UPSTREAM: arm64: vdso: fix clock_getres for 4GiB-aligned res
f2fs: updates on 4.15-rc1
UPSTREAM: android: binder: fix type mismatch warning
Linux 4.4.102
mm, hwpoison: fixup "mm: check the return value of lookup_page_ext for all call sites"
Conflicts:
fs/ext4/crypto_key.c
mm/debug-pagealloc.c
Change-Id: Ibe35d78bd0397f3ff2049e0a1dda20fcb06f2f75
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
The exiting task's prev_window and curr_window arrays are freed
with rq->lock acquired. The kfree() may wakeup kswapd and if
kswapd wakeup needs the same rq->lock, we hit a deadlock. Fix
this issue by freeing these arrays after releasing the lock.
Since the task is already marked as exiting under lock, delaying
the freeing of the current and window arrays will not have
any side effect.
Change-Id: I3282d91ba715765e38177b9d66be32aaed989303
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
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Merge 4.4.108 into android-4.4
Changes in 4.4.108
arm64: Initialise high_memory global variable earlier
cxl: Check if vphb exists before iterating over AFU devices
x86/mm: Add INVPCID helpers
x86/mm: Fix INVPCID asm constraint
x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID
x86/mm: If INVPCID is available, use it to flush global mappings
mm/rmap: batched invalidations should use existing api
mm/mmu_context, sched/core: Fix mmu_context.h assumption
sched/core: Add switch_mm_irqs_off() and use it in the scheduler
x86/mm: Build arch/x86/mm/tlb.c even on !SMP
x86/mm, sched/core: Uninline switch_mm()
x86/mm, sched/core: Turn off IRQs in switch_mm()
ARM: Hide finish_arch_post_lock_switch() from modules
sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off()
x86/irq: Do not substract irq_tlb_count from irq_call_count
ALSA: hda - add support for docking station for HP 820 G2
ALSA: hda - add support for docking station for HP 840 G3
arm: kprobes: Fix the return address of multiple kretprobes
arm: kprobes: Align stack to 8-bytes in test code
cpuidle: Validate cpu_dev in cpuidle_add_sysfs()
r8152: fix the list rx_done may be used without initialization
crypto: deadlock between crypto_alg_sem/rtnl_mutex/genl_mutex
sch_dsmark: fix invalid skb_cow() usage
bna: integer overflow bug in debugfs
net: qmi_wwan: Add USB IDs for MDM6600 modem on Motorola Droid 4
usb: gadget: f_uvc: Sanity check wMaxPacketSize for SuperSpeed
usb: gadget: udc: remove pointer dereference after free
netfilter: nfnl_cthelper: fix runtime expectation policy updates
netfilter: nfnl_cthelper: Fix memory leak
inet: frag: release spinlock before calling icmp_send()
pinctrl: st: add irq_request/release_resources callbacks
scsi: lpfc: Fix PT2PT PRLI reject
KVM: x86: correct async page present tracepoint
KVM: VMX: Fix enable VPID conditions
ARM: dts: ti: fix PCI bus dtc warnings
hwmon: (asus_atk0110) fix uninitialized data access
HID: xinmo: fix for out of range for THT 2P arcade controller.
r8152: prevent the driver from transmitting packets with carrier off
s390/qeth: no ETH header for outbound AF_IUCV
bna: avoid writing uninitialized data into hw registers
net: Do not allow negative values for busy_read and busy_poll sysctl interfaces
i40e: Do not enable NAPI on q_vectors that have no rings
RDMA/iser: Fix possible mr leak on device removal event
irda: vlsi_ir: fix check for DMA mapping errors
netfilter: nfnl_cthelper: fix a race when walk the nf_ct_helper_hash table
netfilter: nf_nat_snmp: Fix panic when snmp_trap_helper fails to register
ARM: dts: am335x-evmsk: adjust mmc2 param to allow suspend
KVM: pci-assign: do not map smm memory slot pages in vt-d page tables
isdn: kcapi: avoid uninitialized data
xhci: plat: Register shutdown for xhci_plat
netfilter: nfnetlink_queue: fix secctx memory leak
ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory
cpuidle: powernv: Pass correct drv->cpumask for registration
bnxt_en: Fix NULL pointer dereference in reopen failure path
backlight: pwm_bl: Fix overflow condition
crypto: crypto4xx - increase context and scatter ring buffer elements
rtc: pl031: make interrupt optional
net: phy: at803x: Change error to EINVAL for invalid MAC
PCI: Avoid bus reset if bridge itself is broken
scsi: cxgb4i: fix Tx skb leak
scsi: mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive
PCI: Create SR-IOV virtfn/physfn links before attaching driver
igb: check memory allocation failure
ixgbe: fix use of uninitialized padding
PCI/AER: Report non-fatal errors only to the affected endpoint
scsi: lpfc: Fix secure firmware updates
scsi: lpfc: PLOGI failures during NPIV testing
fm10k: ensure we process SM mbx when processing VF mbx
tcp: fix under-evaluated ssthresh in TCP Vegas
rtc: set the alarm to the next expiring timer
cpuidle: fix broadcast control when broadcast can not be entered
thermal: hisilicon: Handle return value of clk_prepare_enable
MIPS: math-emu: Fix final emulation phase for certain instructions
Revert "Bluetooth: btusb: driver to enable the usb-wakeup feature"
ALSA: hda - Clear the leftover component assignment at snd_hdac_i915_exit()
ALSA: hda - Degrade i915 binding failure message
ALSA: hda - Fix yet another i915 pointer leftover in error path
alpha: fix build failures
Linux 4.4.108
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
* refs/heads/tmp-03d4af8
Linux 4.4.98
PKCS#7: fix unitialized boolean 'want'
x86/oprofile/ppro: Do not use __this_cpu*() in preemptible context
can: c_can: don't indicate triple sampling support for D_CAN
can: sun4i: handle overrun in RX FIFO
rbd: use GFP_NOIO for parent stat and data requests
drm/vmwgfx: Fix Ubuntu 17.10 Wayland black screen issue
Input: elan_i2c - add ELAN060C to the ACPI table
MIPS: AR7: Ensure that serial ports are properly set up
MIPS: AR7: Defer registration of GPIO
tools: firmware: check for distro fallback udev cancel rule
selftests: firmware: send expected errors to /dev/null
selftests: firmware: add empty string and async tests
test: firmware_class: report errors properly on failure
MIPS: SMP: Fix deadlock & online race
MIPS: Fix race on setting and getting cpu_online_mask
MIPS: SMP: Use a completion event to signal CPU up
MIPS: Fix CM region target definitions
MIPS: microMIPS: Fix incorrect mask in insn_table_MM
ALSA: seq: Avoid invalid lockdep class warning
ALSA: seq: Fix OSS sysex delivery in OSS emulation
ARM: 8720/1: ensure dump_instr() checks addr_limit
KEYS: fix NULL pointer dereference during ASN.1 parsing [ver #2]
crypto: x86/sha1-mb - fix panic due to unaligned access
workqueue: Fix NULL pointer dereference
x86/uaccess, sched/preempt: Verify access_ok() context
platform/x86: hp-wmi: Do not shadow error values
platform/x86: hp-wmi: Fix error value for hp_wmi_tablet_state
KEYS: trusted: fix writing past end of buffer in trusted_read()
KEYS: trusted: sanitize all key material
cdc_ncm: Set NTB format again after altsetting switch for Huawei devices
platform/x86: hp-wmi: Fix detection for dock and tablet mode
net: dsa: select NET_SWITCHDEV
s390/qeth: issue STARTLAN as first IPA command
IB/ipoib: Change list_del to list_del_init in the tx object
Input: mpr121 - set missing event capability
Input: mpr121 - handle multiple bits change of status register
IPsec: do not ignore crypto err in ah4 input
netfilter: nft_meta: deal with PACKET_LOOPBACK in netdev family
usb: hcd: initialize hcd->flags to 0 when rm hcd
serial: sh-sci: Fix register offsets for the IRDA serial port
phy: increase size of MII_BUS_ID_SIZE and bus_id
iio: trigger: free trigger resource correctly
crypto: vmx - disable preemption to enable vsx in aes_ctr.c
ARM: omap2plus_defconfig: Fix probe errors on UARTs 5 and 6
powerpc/corenet: explicitly disable the SDHC controller on kmcoge4
iommu/arm-smmu-v3: Clear prior settings when updating STEs
KVM: PPC: Book 3S: XICS: correct the real mode ICP rejecting counter
drm: drm_minor_register(): Clean up debugfs on failure
xen/netback: set default upper limit of tx/rx queues to 8
PCI: mvebu: Handle changes to the bridge windows while enabled
video: fbdev: pmag-ba-fb: Remove bad `__init' annotation
adv7604: Initialize drive strength to default when using DT
ANDROID: binder: clarify deferred thread work.
FROMLIST: arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io
Conflicts:
arch/arm64/kernel/io.c
Change-Id: I992fcf368dbc672ad7d6ae31e87f289f4d7df2bf
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
commit 252d2a4117bc181b287eeddf848863788da733ae upstream.
idle_task_exit() can be called with IRQs on x86 on and therefore
should use switch_mm(), not switch_mm_irqs_off().
This doesn't seem to cause any problems right now, but it will
confuse my upcoming TLB flush changes. Nonetheless, I think it
should be backported because it's trivial. There won't be any
meaningful performance impact because idle_task_exit() is only
used when offlining a CPU.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: f98db6013c55 ("sched/core: Add switch_mm_irqs_off() and use it in the scheduler")
Link: http://lkml.kernel.org/r/ca3d1a9fa93a0b49f5a8ff729eda3640fb6abdf9.1497034141.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f98db6013c557c216da5038d9c52045be55cd039 upstream.
By default, this is the same thing as switch_mm().
x86 will override it as an optimization.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/df401df47bdd6be3e389c6f1e3f5310d70e81b2c.1461688545.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.4.107 into android-4.4
Changes in 4.4.107
crypto: hmac - require that the underlying hash algorithm is unkeyed
crypto: salsa20 - fix blkcipher_walk API usage
autofs: fix careless error in recent commit
tracing: Allocate mask_str buffer dynamically
USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID
USB: core: prevent malicious bNumInterfaces overflow
usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer
ceph: drop negative child dentries before try pruning inode's alias
Bluetooth: btusb: driver to enable the usb-wakeup feature
xhci: Don't add a virt_dev to the devs array before it's fully allocated
sched/rt: Do not pull from current CPU if only one CPU to pull
dmaengine: dmatest: move callback wait queue to thread context
ext4: fix fdatasync(2) after fallocate(2) operation
ext4: fix crash when a directory's i_size is too small
KEYS: add missing permission check for request_key() destination
mac80211: Fix addition of mesh configuration element
usb: phy: isp1301: Add OF device ID table
md-cluster: free md_cluster_info if node leave cluster
userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE
userfaultfd: selftest: vm: allow to build in vm/ directory
net: initialize msg.msg_flags in recvfrom
net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values
net: bcmgenet: correct MIB access of UniMAC RUNT counters
net: bcmgenet: reserved phy revisions must be checked first
net: bcmgenet: power down internal phy if open or resume fails
net: bcmgenet: Power up the internal PHY before probing the MII
NFSD: fix nfsd_minorversion(.., NFSD_AVAIL)
NFSD: fix nfsd_reset_versions for NFSv4.
Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
drm/omap: fix dmabuf mmap for dma_alloc'ed buffers
netfilter: bridge: honor frag_max_size when refragmenting
writeback: fix memory leak in wb_queue_work()
net: wimax/i2400m: fix NULL-deref at probe
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
net: Resend IGMP memberships upon peer notification.
mlxsw: reg: Fix SPVM max record count
mlxsw: reg: Fix SPVMLR max record count
intel_th: pci: Add Gemini Lake support
openrisc: fix issue handling 8 byte get_user calls
scsi: hpsa: update check for logical volume status
scsi: hpsa: limit outstanding rescans
fjes: Fix wrong netdevice feature flags
drm/radeon/si: add dpm quirk for Oland
sched/deadline: Make sure the replenishment timer fires in the next period
sched/deadline: Throttle a constrained deadline task activated after the deadline
sched/deadline: Use deadline instead of period when calculating overflow
mmc: mediatek: Fixed bug where clock frequency could be set wrong
drm/radeon: reinstate oland workaround for sclk
afs: Fix missing put_page()
afs: Populate group ID from vnode status
afs: Adjust mode bits processing
afs: Flush outstanding writes when an fd is closed
afs: Migrate vlocation fields to 64-bit
afs: Prevent callback expiry timer overflow
afs: Fix the maths in afs_fs_store_data()
afs: Populate and use client modification time
afs: Fix page leak in afs_write_begin()
afs: Fix afs_kill_pages()
net/mlx4_core: Avoid delays during VF driver device shutdown
perf symbols: Fix symbols__fixup_end heuristic for corner cases
efi/esrt: Cleanup bad memory map log messages
NFSv4.1 respect server's max size in CREATE_SESSION
btrfs: add missing memset while reading compressed inline extents
target: Use system workqueue for ALUA transitions
target: fix ALUA transition timeout handling
target: fix race during implicit transition work flushes
sfc: don't warn on successful change of MAC
fbdev: controlfb: Add missing modes to fix out of bounds access
video: udlfb: Fix read EDID timeout
video: fbdev: au1200fb: Release some resources if a memory allocation fails
video: fbdev: au1200fb: Return an error code if a memory allocation fails
rtc: pcf8563: fix output clock rate
dmaengine: ti-dma-crossbar: Correct am335x/am43xx mux value type
PCI/PME: Handle invalid data when reading Root Status
powerpc/powernv/cpufreq: Fix the frequency read by /proc/cpuinfo
netfilter: ipvs: Fix inappropriate output of procfs
powerpc/opal: Fix EBUSY bug in acquiring tokens
powerpc/ipic: Fix status get and status clear
target/iscsi: Fix a race condition in iscsit_add_reject_from_cmd()
iscsi-target: fix memory leak in lio_target_tiqn_addtpg()
target:fix condition return in core_pr_dump_initiator_port()
target/file: Do not return error for UNMAP if length is zero
arm-ccn: perf: Prevent module unload while PMU is in use
crypto: tcrypt - fix buffer lengths in test_aead_speed()
mm: Handle 0 flags in _calc_vm_trans() macro
clk: mediatek: add the option for determining PLL source clock
clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
clk: tegra: Fix cclk_lp divisor register
ppp: Destroy the mutex when cleanup
thermal/drivers/step_wise: Fix temperature regulation misbehavior
GFS2: Take inode off order_write list when setting jdata flag
bcache: explicitly destroy mutex while exiting
bcache: fix wrong cache_misses statistics
l2tp: cleanup l2tp_tunnel_delete calls
xfs: fix log block underflow during recovery cycle verification
xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real
PCI: Detach driver before procfs & sysfs teardown on device remove
scsi: hpsa: cleanup sas_phy structures in sysfs when unloading
scsi: hpsa: destroy sas transport properties before scsi_host
powerpc/perf/hv-24x7: Fix incorrect comparison in memord
tty fix oops when rmmod 8250
usb: musb: da8xx: fix babble condition handling
pinctrl: adi2: Fix Kconfig build problem
raid5: Set R5_Expanded on parity devices as well as data.
scsi: scsi_devinfo: Add REPORTLUN2 to EMC SYMMETRIX blacklist entry
vt6655: Fix a possible sleep-in-atomic bug in vt6655_suspend
scsi: sd: change manage_start_stop to bool in sysfs interface
scsi: sd: change allow_restart to bool in sysfs interface
scsi: bfa: integer overflow in debugfs
udf: Avoid overflow when session starts at large offset
macvlan: Only deliver one copy of the frame to the macvlan interface
RDMA/cma: Avoid triggering undefined behavior
IB/ipoib: Grab rtnl lock on heavy flush when calling ndo_open/stop
ath9k: fix tx99 potential info leak
Linux 4.4.107
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 2317d5f1c34913bac5971d93d69fb6c31bb74670 ]
I was testing Daniel's changes with his test case, and tweaked it a
little. Instead of having the runtime equal to the deadline, I
increased the deadline ten fold.
Daniel's test case had:
attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */
attr.sched_deadline = 2 * 1000 * 1000; /* 2 ms */
attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */
To make it more interesting, I changed it to:
attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */
attr.sched_deadline = 20 * 1000 * 1000; /* 20 ms */
attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */
The results were rather surprising. The behavior that Daniel's patch
was fixing came back. The task started using much more than .1% of the
CPU. More like 20%.
Looking into this I found that it was due to the dl_entity_overflow()
constantly returning true. That's because it uses the relative period
against relative runtime vs the absolute deadline against absolute
runtime.
runtime / (deadline - t) > dl_runtime / dl_period
There's even a comment mentioning this, and saying that when relative
deadline equals relative period, that the equation is the same as using
deadline instead of period. That comment is backwards! What we really
want is:
runtime / (deadline - t) > dl_runtime / dl_deadline
We care about if the runtime can make its deadline, not its period. And
then we can say "when the deadline equals the period, the equation is
the same as using dl_period instead of dl_deadline".
After correcting this, now when the task gets enqueued, it can throttle
correctly, and Daniel's fix to the throttling of sleeping deadline
tasks works even when the runtime and deadline are not the same.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luca Abeni <luca.abeni@santannapisa.it>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Romulo Silva de Oliveira <romulo.deoliveira@ufsc.br>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it>
Link: http://lkml.kernel.org/r/02135a27f1ae3fe5fd032568a5a2f370e190e8d7.1488392936.git.bristot@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit df8eac8cafce7d086be3bd5cf5a838fa37594dfb ]
During the activation, CBS checks if it can reuse the current task's
runtime and period. If the deadline of the task is in the past, CBS
cannot use the runtime, and so it replenishes the task. This rule
works fine for implicit deadline tasks (deadline == period), and the
CBS was designed for implicit deadline tasks. However, a task with
constrained deadline (deadine < period) might be awakened after the
deadline, but before the next period. In this case, replenishing the
task would allow it to run for runtime / deadline. As in this case
deadline < period, CBS enables a task to run for more than the
runtime / period. In a very loaded system, this can cause a domino
effect, making other tasks miss their deadlines.
To avoid this problem, in the activation of a constrained deadline
task after the deadline but before the next period, throttle the
task and set the replenishing timer to the begin of the next period,
unless it is boosted.
Reproducer:
--------------- %< ---------------
int main (int argc, char **argv)
{
int ret;
int flags = 0;
unsigned long l = 0;
struct timespec ts;
struct sched_attr attr;
memset(&attr, 0, sizeof(attr));
attr.size = sizeof(attr);
attr.sched_policy = SCHED_DEADLINE;
attr.sched_runtime = 2 * 1000 * 1000; /* 2 ms */
attr.sched_deadline = 2 * 1000 * 1000; /* 2 ms */
attr.sched_period = 2 * 1000 * 1000 * 1000; /* 2 s */
ts.tv_sec = 0;
ts.tv_nsec = 2000 * 1000; /* 2 ms */
ret = sched_setattr(0, &attr, flags);
if (ret < 0) {
perror("sched_setattr");
exit(-1);
}
for(;;) {
/* XXX: you may need to adjust the loop */
for (l = 0; l < 150000; l++);
/*
* The ideia is to go to sleep right before the deadline
* and then wake up before the next period to receive
* a new replenishment.
*/
nanosleep(&ts, NULL);
}
exit(0);
}
--------------- >% ---------------
On my box, this reproducer uses almost 50% of the CPU time, which is
obviously wrong for a task with 2/2000 reservation.
Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luca Abeni <luca.abeni@santannapisa.it>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Romulo Silva de Oliveira <romulo.deoliveira@ufsc.br>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it>
Link: http://lkml.kernel.org/r/edf58354e01db46bf42df8d2dd32418833f68c89.1488392936.git.bristot@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 5ac69d37784b237707a7b15d199cdb6c6fdb6780 ]
Currently, the replenishment timer is set to fire at the deadline
of a task. Although that works for implicit deadline tasks because the
deadline is equals to the begin of the next period, that is not correct
for constrained deadline tasks (deadline < period).
For instance:
f.c:
--------------- %< ---------------
int main (void)
{
for(;;);
}
--------------- >% ---------------
# gcc -o f f.c
# trace-cmd record -e sched:sched_switch \
-e syscalls:sys_exit_sched_setattr \
chrt -d --sched-runtime 490000000 \
--sched-deadline 500000000 \
--sched-period 1000000000 0 ./f
# trace-cmd report | grep "{pid of ./f}"
After setting parameters, the task is replenished and continue running
until being throttled:
f-11295 [003] 13322.113776: sys_exit_sched_setattr: 0x0
The task is throttled after running 492318 ms, as expected:
f-11295 [003] 13322.606094: sched_switch: f:11295 [-1] R ==> watchdog/3:32 [0]
But then, the task is replenished 500719 ms after the first
replenishment:
<idle>-0 [003] 13322.614495: sched_switch: swapper/3:0 [120] R ==> f:11295 [-1]
Running for 490277 ms:
f-11295 [003] 13323.104772: sched_switch: f:11295 [-1] R ==> swapper/3:0 [120]
Hence, in the first period, the task runs 2 * runtime, and that is a bug.
During the first replenishment, the next deadline is set one period away.
So the runtime / period starts to be respected. However, as the second
replenishment took place in the wrong instant, the next replenishment
will also be held in a wrong instant of time. Rather than occurring in
the nth period away from the first activation, it is taking place
in the (nth period - relative deadline).
Signed-off-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Luca Abeni <luca.abeni@santannapisa.it>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Romulo Silva de Oliveira <romulo.deoliveira@ufsc.br>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tommaso Cucinotta <tommaso.cucinotta@sssup.it>
Link: http://lkml.kernel.org/r/ac50d89887c25285b47465638354b63362f8adff.1488392936.git.bristot@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f73c52a5bcd1710994e53fbccc378c42b97a06b6 upstream.
Daniel Wagner reported a crash on the BeagleBone Black SoC.
This is a single CPU architecture, and does not have a functional
arch_send_call_function_single_ipi() implementation which can crash
the kernel if that is called.
As it only has one CPU, it shouldn't be called, but if the kernel is
compiled for SMP, the push/pull RT scheduling logic now calls it for
irq_work if the one CPU is overloaded, it can use that function to call
itself and crash the kernel.
Ideally, we should disable the SCHED_FEAT(RT_PUSH_IPI) if the system
only has a single CPU. But SCHED_FEAT is a constant if sched debugging
is turned off. Another fix can also be used, and this should also help
with normal SMP machines. That is, do not initiate the pull code if
there's only one RT overloaded CPU, and that CPU happens to be the
current CPU that is scheduling in a lower priority task.
Even on a system with many CPUs, if there's many RT tasks waiting to
run on a single CPU, and that CPU schedules in another RT task of lower
priority, it will initiate the PULL logic in case there's a higher
priority RT task on another CPU that is waiting to run. But if there is
no other CPU with waiting RT tasks, it will initiate the RT pull logic
on itself (as it still has RT tasks waiting to run). This is a wasted
effort.
Not only does this help with SMP code where the current CPU is the only
one with RT overloaded tasks, it should also solve the issue that
Daniel encountered, because it will prevent the PULL logic from
executing, as there's only one CPU on the system, and the check added
here will cause it to exit the RT pull code.
Reported-by: Daniel Wagner <wagi@monom.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-rt-users <linux-rt-users@vger.kernel.org>
Fixes: 4bdced5c9 ("sched/rt: Simplify the IPI based RT balancing logic")
Link: http://lkml.kernel.org/r/20171202130454.4cbbfe8d@vmware.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 90e406f96f630c07d631a021fd4af10aac913e77 upstream.
The default NR_CPUS can be very large, but actual possible nr_cpu_ids
usually is very small. For my x86 distribution, the NR_CPUS is 8192 and
nr_cpu_ids is 4. About 2 pages are wasted.
Most machines don't have so many CPUs, so define a array with NR_CPUS
just wastes memory. So let's allocate the buffer dynamically when need.
With this change, the mutext tracing_cpumask_update_lock also can be
removed now, which was used to protect mask_str.
Link: http://lkml.kernel.org/r/1512013183-19107-1-git-send-email-changbin.du@intel.com
Fixes: 36dfe9252b ("ftrace: make use of tracing_cpumask")
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enables kcov to collect comparison operands from instrumented code.
This is done by using Clang's -fsanitize=trace-cmp instrumentation
(currently not available for GCC).
The comparison operands help a lot in fuzz testing. E.g. they are used
in Syzkaller to cover the interiors of conditional statements with way
less attempts and thus make previously unreachable code reachable.
To allow separate collection of coverage and comparison operands two
different work modes are implemented. Mode selection is now done via a
KCOV_ENABLE ioctl call with corresponding argument value.
Link: http://lkml.kernel.org/r/20171011095459.70721-1-glider@google.com
Signed-off-by: Victor Chibotaru <tchibo@google.com>
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Popov <alex.popov@linux.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: <syzkaller@googlegroups.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from ded97d2c2b2c5f1dcced0bc57133f7753b037dfc)
Change-Id: Iaba700a3f4786048be14a5e764ccabceae114eb7
Signed-off-by: Paul Lawrence <paullawrence@google.com>
__sanitizer_cov_trace_pc() is a hot code, so it's worth to remove
pointless '!current' check. Current is never NULL.
Link: http://lkml.kernel.org/r/20170929162221.32500-1-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from fcf4edac049a8bca41658970292e2dfdbc9d5f62)
Change-Id: Ia76e8c6cc0dc3fb796d8e8b92430fcf659b52eee
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Support compat processes in KCOV by providing compat_ioctl callback.
Compat mode uses the same ioctl callback: we have 2 commands that do not
use the argument and 1 that already checks that the arg does not overflow
INT_MAX. This allows to use KCOV-guided fuzzing in compat processes.
Link: http://lkml.kernel.org/r/20170823100553.55812-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: <syzkaller@googlegroups.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from 7483e5d420d9d5aa1732c5efb0da59e095a8b24e)
Change-Id:I74b62f01941091649ce6e88b3130e4ca4274a8de
Signed-off-by: Paul Lawrence <paullawrence@google.com>
in_interrupt() semantics are confusing and wrong for most users as it
also returns true when bh is disabled. Thus we open coded a proper
check for interrupts in __sanitizer_cov_trace_pc() with a lengthy
explanatory comment.
Use the new in_task() predicate instead.
Link: http://lkml.kernel.org/r/20170321091026.139655-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: James Morse <james.morse@arm.com>
Cc: Alexander Popov <alex.popov@linux.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from f61e869d519c0c11a8d80a503cfdfb4897df855a)
Change-Id: Ice260535314238c8f82ddc578ecaeea6177d28fc
Signed-off-by: Paul Lawrence <paullawrence@google.com>
It is fragile that some definitions acquired via transitive
dependencies, as shown in below:
atomic_* (<linux/atomic.h>)
ENOMEM/EN* (<linux/errno.h>)
EXPORT_SYMBOL (<linux/export.h>)
device_initcall (<linux/init.h>)
preempt_* (<linux/preempt.h>)
Include them to prevent possible issues.
Link: http://lkml.kernel.org/r/1481163221-40170-1-git-send-email-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from db862358a4a96f52d3b0c713c703828f90d97de9)
Change-Id: Ia529631d2072cc795c46ae0276e51592318cd40f
Signed-off-by: Paul Lawrence <paullawrence@google.com>
In __sanitizer_cov_trace_pc we use task_struct and fields within it, but
as we haven't included <linux/sched.h>, it is not guaranteed to be
defined. While we usually happen to acquire the definition through a
transitive include, this is fragile (and hasn't been true in the past,
causing issues with backports).
Include <linux/sched.h> to avoid any fragility.
[mark.rutland@arm.com: rewrote changelog]
Link: http://lkml.kernel.org/r/1481007384-27529-1-git-send-email-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from 166ad0e1e2132ff0cda08b94af8301655fcabbcd)
Change-Id: Id5a06b927687ace8788f623fc91cc8305fde5f2d
Signed-off-by: Paul Lawrence <paullawrence@google.com>
in_interrupt() returns a nonzero value when we are either in an
interrupt or have bh disabled via local_bh_disable(). Since we are
interested in only ignoring coverage from actual interrupts, do a proper
check instead of just calling in_interrupt().
As a result of this change, kcov will start to collect coverage from
within local_bh_disable()/local_bh_enable() sections.
Link: http://lkml.kernel.org/r/1476115803-20712-1-git-send-email-andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Nicolai Stange <nicstange@gmail.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: James Morse <james.morse@arm.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from b274c0bb394c6a69ac12feac7c2db81f5aff5a55)
Change-Id: I91364ef699f9af0a57959caf65372a6559d7a6b0
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Kcov causes the compiler to add a call to __sanitizer_cov_trace_pc() in
every basic block. Ftrace patches in a call to _mcount() to each
function it has annotated.
Letting these mechanisms annotate each other is a bad thing. Break the
loop by adding 'notrace' to __sanitizer_cov_trace_pc() so that ftrace
won't try to patch this code.
This patch lets arm64 with KCOV and STACK_TRACER boot.
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bug: 64145065
(cherry-picked from bdab42dfc974d15303afbf259f340f374a453974)
Change-Id: If7708ca761f81e0645d709b263e61493fc016e01
Signed-off-by: Paul Lawrence <paullawrence@google.com>
Linux Build Service Account
Srinivasarao P
Subash Abhinov Kasiviswanathan
Greg Kroah-Hartman
Hugh Dickins
Dave Hansen
Richard Fellner
Lingutla Chandrasekhar
Pavankumar Kondeti
Puja Gupta
Thomas Gleixner
Steven Rostedt (VMware)
Jing Xia
Andy Lutomirski
Daniel Bristot de Oliveira
Changbin Du
Dmitry Vyukov
Victor Chibotaru
Andrey Ryabinin
Alexander Popov
Kefeng Wang
Andrey Konovalov
James Morse