Commit graph

185 commits

Author SHA1 Message Date
Arve Hjønnevåg
14f09e8e7c ANDROID: binder: Add strong ref checks
commit 0a3ffab93fe52530602fe47cd74802cffdb19c05 upstream.

Prevent using a binder_ref with only weak references where a strong
reference is required.

Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10 16:36:33 +01:00
Linux Build Service Account
e733abf82b Merge "ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct" 2016-11-08 11:19:02 -08:00
Arve Hjønnevåg
580f1555aa ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
Prevents leaking pointers between processes

BUG: 30768347
Change-Id: Id898076926f658a1b8b27a3ccb848756b36de4ca
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Git-repo: https://android.googlesource.com/kernel/msm.git
Git-commit: 11032d745836280574827bb1db5e64a94945180e
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
2016-11-07 12:40:09 -08:00
Arve Hjønnevåg
c4a0b63b57 ANDROID: binder: Add strong ref checks
Prevent using a binder_ref with only weak references where a strong
reference is required.

BUG: 30445380

Signed-off-by: Arve Hjønnevåg <arve@android.com>
Git-repo: https://android.googlesource.com/kernel/msm.git
Git-commit: 5e2a2bc89956ae1c739854403408059144b23c28
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
2016-11-03 16:18:35 -07:00
Martijn Coenen
e124de3827 android: binder: support for file-descriptor arrays.
This patch introduces a new binder_fd_array object,
that allows us to support one or more file descriptors
embedded in a buffer that is scatter-gathered.

Change-Id: I647a53cf0d905c7be0dfd9333806982def68dd74
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
dd9bc4f9f1 android: binder: support for scatter-gather.
Previously all data passed over binder needed
to be serialized, with the exception of Binder
objects and file descriptors.

This patchs adds support for scatter-gathering raw
memory buffers into a binder transaction, avoiding
the need to first serialize them into a Parcel.

To remain backwards compatibile with existing
binder clients, it introduces two new command
ioctls for this purpose - BC_TRANSACTION_SG and
BC_REPLY_SG. These commands may only be used with
the new binder_transaction_data_sg structure,
which adds a field for the total size of the
buffers we are scatter-gathering.

Because memory buffers may contain pointers to
other buffers, we allow callers to specify
a parent buffer and an offset into it, to indicate
this is a location pointing to the buffer that
we are fixing up. The kernel will then take care
of fixing up the pointer to that buffer as well.

Change-Id: I02417f28cff14688f2e1d6fcb959438fd96566cc
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
843a25788d android: binder: add extra size to allocator.
The binder_buffer allocator currently only allocates
space for the data and offsets buffers of a Parcel.
This change allows for requesting an additional chunk
of data in the buffer, which can for example be used
to hold additional meta-data about the transaction
(eg a security context).

Change-Id: I58ab9c383a2e1a3057aae6adaa596ce867f1b157
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
bfd49fea44 android: binder: refactor binder_transact()
Moved handling of fixup for binder objects,
handles and file descriptors into separate
functions.

Change-Id: If6849f1caee3834aa87d0ab08950bb1e21ec6e38
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
04e3812e71 android: binder: support multiple /dev instances.
Add a new module parameter 'devices', that can be
used to specify the names of the binder device
nodes we want to populate in /dev.

Each device node has its own context manager, and
is therefore logically separated from all the other
device nodes.

The config option CONFIG_ANDROID_BINDER_DEVICES can
be used to set the default value of the parameter.

This approach was favored over using IPC namespaces,
mostly because we require a single process to be a
part of multiple binder contexts, which seemed harder
to achieve with namespaces.

Change-Id: I3df72b2a19b5ad5a0360e6322482db7b00a12b24
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
8b980bee79 android: binder: deal with contexts in debugfs.
Properly print the context in debugfs entries.

Change-Id: If10c2129536d9f39bae542afd7318ca79af60e3a
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
803df5635e android: binder: support multiple context managers.
Move the context manager state into a separate
struct context, and allow for each process to have
its own context associated with it.

Change-Id: Ifa934370241a2d447dd519eac3fd0682c6d00ab4
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Martijn Coenen
ce0c65986c android: binder: split flat_binder_object.
flat_binder_object is used for both handling
binder objects and file descriptors, even though
the two are mostly independent. Since we'll
have more fixup objects in binder in the future,
instead of extending flat_binder_object again,
split out file descriptors to their own object
while retaining backwards compatibility to
existing user-space clients. All binder objects
just share a header.

Change-Id: If3c55f27a2aa8f21815383e0e807be47895e4786
Signed-off-by: Martijn Coenen <maco@google.com>
2016-10-31 15:14:59 +01:00
Nick Desaulniers
903aee4774 binder: prevent kptr leak by using %pK format specifier
Works in conjunction with kptr_restrict.
Bug: 30143283

Change-Id: Ibe0053e8bd4d8219098ba09041d66fcd5b4592fd
Git-repo: https://android.googlesource.com/kernel/msm.git
Git-commit: b884cbf06200b18e660514a30293931a61126ef5
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
2016-10-27 18:16:46 -07:00
Arve Hjønnevåg
12dd1aad02 ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
Prevents leaking pointers between processes

BUG: 30768347
Change-Id: Id898076926f658a1b8b27a3ccb848756b36de4ca
Signed-off-by: Arve Hjønnevåg <arve@android.com>
2016-10-12 17:34:22 +05:30
Arve Hjønnevåg
4a9040398e ANDROID: binder: Add strong ref checks
Prevent using a binder_ref with only weak references where a strong
reference is required.

BUG: 30445380
Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca
Signed-off-by: Arve Hjønnevåg <arve@android.com>
2016-10-12 17:34:22 +05:30
Dmitry Shmidt
fed8e608c3 Merge remote-tracking branch 'common/android-4.4' into android-4.4.y
Change-Id: I203e905e0a63db40a5bb8ee85fcac1e128736331
2016-10-10 13:10:27 -07:00
Arve Hjønnevåg
78c26bebd1 ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
Prevents leaking pointers between processes

BUG: 30768347
Change-Id: Id898076926f658a1b8b27a3ccb848756b36de4ca
Signed-off-by: Arve Hjønnevåg <arve@android.com>
2016-10-07 02:19:22 +00:00
Arve Hjønnevåg
b81f4c5f31 ANDROID: binder: Add strong ref checks
Prevent using a binder_ref with only weak references where a strong
reference is required.

BUG: 30445380
Change-Id: I66c15b066808f28bd27bfe50fd0e03ff45a09fca
Signed-off-by: Arve Hjønnevåg <arve@android.com>
2016-10-07 02:19:06 +00:00
Dmitry Shmidt
b558f17a13 This is the 4.4.16 stable release
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJXmOXmAAoJEDjbvchgkmk+QYIP/1S8oBZsvjfDzvH8t63HyLeH
 i43MFlYoFAqUIZc002XpluSvZ8uHoG+r7R8Hq3wmv48wxe3M6OBnMdBVTht6mPw+
 t5OLTZr40lWaJm2EIi4aekueMIrCgmL+Et+IFYv7ZVBuYLteVcfny+zdq4EqGmgj
 /a19+L/sTTr4SHtJIhHxWhiVJ9fVMgQk/N3VgQmIiNF2+lVbiFI7QQiDPLbFl0KK
 CM4ETO22HxHCYilGpzhpSMsHCxv12VqNaXNLAsPAepGGW7PqvUmrEWAqgwsbOfRc
 GxTLNk0dUgJqMrfEpQ8ZOMlgzvCAYG2jZuNSuT+nuzrWSUP+WOGRi9TTTxp1CYuZ
 PHlhNTH7ZnqosxJUUZS2d9N5ygpqD48Rhlfl824YzOWCy94VeUnedkVLb20uJwPF
 Y5aQ5WjktBC9why5e4OgGQERvx/U9KTk8E1zRfZZPc2oft9My0YxuemjjKAKZiYN
 ne4WhXbgOJTQkAoZwh2xqny3bWyEaoSrWpQ3R7bBJ9SIRLEOdCKzKpduDbAnbMP7
 QWgQOQC/6qA1mKqjrqF4KPA1Quo9PcUK2Ajh523ewMGCowgY90vyejAgh4Q8g0GC
 fKlx+jJDoKVDbQ8v4hc9PPHMsNNIKT9a1ptwVS3lE+bq1D5Ffm57A4/uOTMYHVab
 gKqu8h1CA0MCVBsH3nNA
 =nY8S
 -----END PGP SIGNATURE-----

Merge tag 'v4.4.16' into android-4.4.y

This is the 4.4.16 stable release

Change-Id: Ibaf7b7e03695e1acebc654a2ca1a4bfcc48fcea4
2016-08-01 15:57:55 -07:00
Andrew Bresticker
821e02f204 CHROMIUM: android: binder: Fix potential scheduling-while-atomic
Commit f1e7f0a724f6 ("android: binder: Disable preemption while holding
the global binder lock.") re-enabled preemption around most of the sites
where calls to potentially sleeping functions were made, but missed
__alloc_fd(), which can sleep if the fdtable needs to be resized.
Re-enable preemption around __alloc_fd() as well as __fd_install() which
can now sleep in upstream kernels as of commit 8a81252b77 ("fs/file.c:
don't acquire files->file_lock in fd_install()").

BUG=chrome-os-partner:44012
TEST=Build and boot on Smaug.

Change-Id: I9819c4b95876f697e75b1b84810b6c520d9c33ec
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/308582
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Riley Andrews <riandrews@google.com>
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.4
Git-commit: c267ff1d548ed1bdad6a08f1c70776c5e60d569e
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2016-07-26 16:39:51 -07:00
Riley Andrews
e4045d607a android: binder: Disable preemption while holding the global binder lock.
Change-Id: I90fe02cdedb8a5677b900a68528fb443b9204322
Signed-off-by: Riley Andrews <riandrews@google.com>
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.4
Git-commit: 5c9ce54ca3a66a57e4ebfe3ae71c5733b6bcc579
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
2016-07-26 16:35:40 -07:00
Mark Salyzyn
13c17d0179 Revert "CHROMIUM: android: binder: Fix potential scheduling-while-atomic"
This reverts commit 71b1886054.

Change-Id: I9ded0ff43535c1367c2cf79dfeec20d4b5f0357a
2016-07-18 22:21:12 +00:00
Andrew Bresticker
71b1886054 CHROMIUM: android: binder: Fix potential scheduling-while-atomic
(cherry picked from commit 166b45af97359159f9585a836c9849e725e31fd6)

Commit f1e7f0a724f6 ("android: binder: Disable preemption while holding
the global binder lock.") re-enabled preemption around most of the sites
where calls to potentially sleeping functions were made, but missed
__alloc_fd(), which can sleep if the fdtable needs to be resized.
Re-enable preemption around __alloc_fd() as well as __fd_install() which
can now sleep in upstream kernels as of commit 8a81252b77 ("fs/file.c:
don't acquire files->file_lock in fd_install()").

BUG=chrome-os-partner:44012
TEST=Build and boot on Smaug.

Change-Id: I9819c4b95876f697e75b1b84810b6c520d9c33ec
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/308582
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Riley Andrews <riandrews@google.com>
Bug: 30141999
2016-07-18 15:03:46 -07:00
Runmin Wang
750075feff Merge remote-tracking branch 'origin/tmp-917a9a9133a6' into lsk
* tmp-917a9:
  ARM/vdso: Mark the vDSO code read-only after init
  x86/vdso: Mark the vDSO code read-only after init
  lkdtm: Verify that '__ro_after_init' works correctly
  arch: Introduce post-init read-only memory
  x86/mm: Always enable CONFIG_DEBUG_RODATA and remove the Kconfig option
  mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings
  asm-generic: Consolidate mark_rodata_ro()
  Linux 4.4.6
  ld-version: Fix awk regex compile failure
  target: Drop incorrect ABORT_TASK put for completed commands
  block: don't optimize for non-cloned bio in bio_get_last_bvec()
  MIPS: smp.c: Fix uninitialised temp_foreign_map
  MIPS: Fix build error when SMP is used without GIC
  ovl: fix getcwd() failure after unsuccessful rmdir
  ovl: copy new uid/gid into overlayfs runtime inode
  userfaultfd: don't block on the last VM updates at exit time
  powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
  powerpc/powernv: Add a kmsg_dumper that flushes console output on panic
  powerpc: Fix dedotify for binutils >= 2.26
  Revert "drm/radeon/pm: adjust display configuration after powerstate"
  drm/radeon: Fix error handling in radeon_flip_work_func.
  drm/amdgpu: Fix error handling in amdgpu_flip_work_func.
  Revert "drm/radeon: call hpd_irq_event on resume"
  x86/mm: Fix slow_virt_to_phys() for X86_PAE again
  gpu: ipu-v3: Do not bail out on missing optional port nodes
  mac80211: Fix Public Action frame RX in AP mode
  mac80211: check PN correctly for GCMP-encrypted fragmented MPDUs
  mac80211: minstrel_ht: fix a logic error in RTS/CTS handling
  mac80211: minstrel_ht: set default tx aggregation timeout to 0
  mac80211: fix use of uninitialised values in RX aggregation
  mac80211: minstrel: Change expected throughput unit back to Kbps
  iwlwifi: mvm: inc pending frames counter also when txing non-sta
  can: gs_usb: fixed disconnect bug by removing erroneous use of kfree()
  cfg80211/wext: fix message ordering
  wext: fix message delay/ordering
  ovl: fix working on distributed fs as lower layer
  ovl: ignore lower entries when checking purity of non-directory entries
  ASoC: wm8958: Fix enum ctl accesses in a wrong type
  ASoC: wm8994: Fix enum ctl accesses in a wrong type
  ASoC: samsung: Use IRQ safe spin lock calls
  ASoC: dapm: Fix ctl value accesses in a wrong type
  ncpfs: fix a braino in OOM handling in ncp_fill_cache()
  jffs2: reduce the breakage on recovery from halfway failed rename()
  dmaengine: at_xdmac: fix residue computation
  tracing: Fix check for cpu online when event is disabled
  s390/dasd: fix diag 0x250 inline assembly
  s390/mm: four page table levels vs. fork
  KVM: MMU: fix reserved bit check for ept=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0
  KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo
  KVM: PPC: Book3S HV: Sanitize special-purpose register values on guest exit
  KVM: s390: correct fprs on SIGP (STOP AND) STORE STATUS
  KVM: VMX: disable PEBS before a guest entry
  kvm: cap halt polling at exactly halt_poll_ns
  PCI: Allow a NULL "parent" pointer in pci_bus_assign_domain_nr()
  ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property
  ARM: dts: dra7: do not gate cpsw clock due to errata i877
  ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window
  arm64: account for sparsemem section alignment when choosing vmemmap offset
  Linux 4.4.5
  drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable
  modules: fix longstanding /proc/kallsyms vs module insertion race.
  drm/i915: refine qemu south bridge detection
  drm/i915: more virtual south bridge detection
  block: get the 1st and last bvec via helpers
  block: check virt boundary in bio_will_gap()
  drm/amdgpu: Use drm_calloc_large for VM page_tables array
  thermal: cpu_cooling: fix out of bounds access in time_in_idle
  i2c: brcmstb: allocate correct amount of memory for regmap
  ubi: Fix out of bounds write in volume update code
  cxl: Fix PSL timebase synchronization detection
  MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp'
  MIPS: scache: Fix scache init with invalid line size.
  USB: serial: option: add support for Quectel UC20
  USB: serial: option: add support for Telit LE922 PID 0x1045
  USB: qcserial: add Sierra Wireless EM74xx device ID
  USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3)
  USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder
  usb: chipidea: otg: change workqueue ci_otg as freezable
  ALSA: timer: Fix broken compat timer user status ioctl
  ALSA: hdspm: Fix zero-division
  ALSA: hdsp: Fix wrong boolean ctl value accesses
  ALSA: hdspm: Fix wrong boolean ctl value accesses
  ALSA: seq: oss: Don't drain at closing a client
  ALSA: pcm: Fix ioctls for X32 ABI
  ALSA: timer: Fix ioctls for X32 ABI
  ALSA: rawmidi: Fix ioctls X32 ABI
  ALSA: hda - Fix mic issues on Acer Aspire E1-472
  ALSA: ctl: Fix ioctls for X32 ABI
  ALSA: usb-audio: Add a quirk for Plantronics DA45
  adv7604: fix tx 5v detect regression
  dmaengine: pxa_dma: fix cyclic transfers
  Fix directory hardlinks from deleted directories
  jffs2: Fix page lock / f->sem deadlock
  Revert "jffs2: Fix lock acquisition order bug in jffs2_write_begin"
  Btrfs: fix loading of orphan roots leading to BUG_ON
  pata-rb532-cf: get rid of the irq_to_gpio() call
  tracing: Do not have 'comm' filter override event 'comm' field
  ata: ahci: don't mark HotPlugCapable Ports as external/removable
  PM / sleep / x86: Fix crash on graph trace through x86 suspend
  arm64: vmemmap: use virtual projection of linear region
  Adding Intel Lewisburg device IDs for SATA
  writeback: flush inode cgroup wb switches instead of pinning super_block
  block: bio: introduce helpers to get the 1st and last bvec
  libata: Align ata_device's id on a cacheline
  libata: fix HDIO_GET_32BIT ioctl
  drm/amdgpu: return from atombios_dp_get_dpcd only when error
  drm/amdgpu/gfx8: specify which engine to wait before vm flush
  drm/amdgpu: apply gfx_v8 fixes to gfx_v7 as well
  drm/amdgpu/pm: update current crtc info after setting the powerstate
  drm/radeon/pm: update current crtc info after setting the powerstate
  drm/ast: Fix incorrect register check for DRAM width
  target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
  iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
  iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
  iommu/amd: Apply workaround for ATS write permission check
  arm/arm64: KVM: Fix ioctl error handling
  KVM: x86: fix root cause for missed hardware breakpoints
  vfio: fix ioctl error handling
  Fix cifs_uniqueid_to_ino_t() function for s390x
  CIFS: Fix SMB2+ interim response processing for read requests
  cifs: fix out-of-bounds access in lease parsing
  fbcon: set a default value to blink interval
  kvm: x86: Update tsc multiplier on change.
  mips/kvm: fix ioctl error handling
  parisc: Fix ptrace syscall number and return value modification
  PCI: keystone: Fix MSI code that retrieves struct pcie_port pointer
  block: Initialize max_dev_sectors to 0
  drm/amdgpu: mask out WC from BO on unsupported arches
  btrfs: async-thread: Fix a use-after-free error for trace
  btrfs: Fix no_space in write and rm loop
  Btrfs: fix deadlock running delayed iputs at transaction commit time
  drivers: sh: Restore legacy clock domain on SuperH platforms
  use ->d_seq to get coherency between ->d_inode and ->d_flags
  Linux 4.4.4
  iwlwifi: mvm: don't allow sched scans without matches to be started
  iwlwifi: update and fix 7265 series PCI IDs
  iwlwifi: pcie: properly configure the debug buffer size for 8000
  iwlwifi: dvm: fix WoWLAN
  security: let security modules use PTRACE_MODE_* with bitmasks
  IB/cma: Fix RDMA port validation for iWarp
  x86/irq: Plug vector cleanup race
  x86/irq: Call irq_force_move_complete with irq descriptor
  x86/irq: Remove outgoing CPU from vector cleanup mask
  x86/irq: Remove the cpumask allocation from send_cleanup_vector()
  x86/irq: Clear move_in_progress before sending cleanup IPI
  x86/irq: Remove offline cpus from vector cleanup
  x86/irq: Get rid of code duplication
  x86/irq: Copy vectormask instead of an AND operation
  x86/irq: Check vector allocation early
  x86/irq: Reorganize the search in assign_irq_vector
  x86/irq: Reorganize the return path in assign_irq_vector
  x86/irq: Do not use apic_chip_data.old_domain as temporary buffer
  x86/irq: Validate that irq descriptor is still active
  x86/irq: Fix a race in x86_vector_free_irqs()
  x86/irq: Call chip->irq_set_affinity in proper context
  x86/entry/compat: Add missing CLAC to entry_INT80_32
  x86/mpx: Fix off-by-one comparison with nr_registers
  hpfs: don't truncate the file when delete fails
  do_last(): ELOOP failure exit should be done after leaving RCU mode
  should_follow_link(): validate ->d_seq after having decided to follow
  xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
  xen/pciback: Save the number of MSI-X entries to be copied later.
  xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
  xen/scsiback: correct frontend counting
  xen/arm: correctly handle DMA mapping of compound pages
  ARM: at91/dt: fix typo in sama5d2 pinmux descriptions
  ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
  do_last(): don't let a bogus return value from ->open() et.al. to confuse us
  kernel/resource.c: fix muxed resource handling in __request_region()
  sunrpc/cache: fix off-by-one in qword_get()
  tracing: Fix showing function event in available_events
  powerpc/eeh: Fix partial hotplug criterion
  KVM: x86: MMU: fix ubsan index-out-of-range warning
  KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
  KVM: x86: fix missed hardware breakpoints
  KVM: arm/arm64: vgic: Ensure bitmaps are long enough
  KVM: async_pf: do not warn on page allocation failures
  of/irq: Fix msi-map calculation for nonzero rid-base
  NFSv4: Fix a dentry leak on alias use
  nfs: fix nfs_size_to_loff_t
  block: fix use-after-free in dio_bio_complete
  bio: return EINTR if copying to user space got interrupted
  i2c: i801: Adding Intel Lewisburg support for iTCO
  phy: core: fix wrong err handle for phy_power_on
  writeback: keep superblock pinned during cgroup writeback association switches
  cgroup: make sure a parent css isn't offlined before its children
  cpuset: make mm migration asynchronous
  PCI/AER: Flush workqueue on device remove to avoid use-after-free
  ARCv2: SMP: Emulate IPI to self using software triggered interrupt
  ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
  libata: fix sff host state machine locking while polling
  qla2xxx: Fix stale pointer access.
  spi: atmel: fix gpio chip-select in case of non-DT platform
  target: Fix race with SCF_SEND_DELAYED_TAS handling
  target: Fix remote-port TMR ABORT + se_cmd fabric stop
  target: Fix TAS handling for multi-session se_node_acls
  target: Fix LUN_RESET active TMR descriptor handling
  target: Fix LUN_RESET active I/O handling for ACK_KREF
  ALSA: hda - Fixing background noise on Dell Inspiron 3162
  ALSA: hda - Apply clock gate workaround to Skylake, too
  Revert "workqueue: make sure delayed work run in local cpu"
  workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup
  mac80211: Requeue work after scan complete for all VIF types.
  rfkill: fix rfkill_fop_read wait_event usage
  tick/nohz: Set the correct expiry when switching to nohz/lowres mode
  perf stat: Do not clean event's private stats
  cdc-acm:exclude Samsung phone 04e8:685d
  Revert "Staging: panel: usleep_range is preferred over udelay"
  Staging: speakup: Fix getting port information
  sd: Optimal I/O size is in bytes, not sectors
  libceph: don't spam dmesg with stray reply warnings
  libceph: use the right footer size when skipping a message
  libceph: don't bail early from try_read() when skipping a message
  libceph: fix ceph_msg_revoke()
  seccomp: always propagate NO_NEW_PRIVS on tsync
  cpufreq: Fix NULL reference crash while accessing policy->governor_data
  cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
  hwmon: (ads1015) Handle negative conversion values correctly
  hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook
  hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
  Thermal: do thermal zone update after a cooling device registered
  Thermal: handle thermal zone device properly during system sleep
  Thermal: initialize thermal zone device correctly
  IB/mlx5: Expose correct maximum number of CQE capacity
  IB/qib: Support creating qps with GFP_NOIO flag
  IB/qib: fix mcast detach when qp not attached
  IB/cm: Fix a recently introduced deadlock
  dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer
  dmaengine: at_xdmac: fix resume for cyclic transfers
  dmaengine: dw: fix cyclic transfer callbacks
  dmaengine: dw: fix cyclic transfer setup
  nfit: fix multi-interface dimm handling, acpi6.1 compatibility
  ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
  ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830
  ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700
  lib: sw842: select crc32
  uapi: update install list after nvme.h rename
  ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
  ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list
  toshiba_acpi: Fix blank screen at boot if transflective backlight is supported
  make sure that freeing shmem fast symlinks is RCU-delayed
  drm/radeon/pm: adjust display configuration after powerstate
  drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2)
  drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2)
  drm: Fix drm_vblank_pre/post_modeset regression from Linux 4.4
  drm: Prevent vblank counter bumps > 1 with active vblank clients. (v2)
  drm: No-Op redundant calls to drm_vblank_off() (v2)
  drm/radeon: use post-decrement in error handling
  drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915/dsi: don't pass arbitrary data to sideband
  drm/i915/dsi: defend gpio table against out of bounds access
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
  drm/i915/dp: fall back to 18 bpp when sink capability is unknown
  drm/i915: Make sure DC writes are coherent on flush.
  drm/i915: Init power domains early in driver load
  drm/i915: intel_hpd_init(): Fix suspend/resume reprobing
  drm/i915: Restore inhibiting the load of the default context
  drm: fix missing reference counting decrease
  drm/radeon: hold reference to fences in radeon_sa_bo_new
  drm/radeon: mask out WC from BO on unsupported arches
  drm: add helper to check for wc memory support
  drm/radeon: fix DP audio support for APU with DCE4.1 display engine
  drm/radeon: Add a common function for DFS handling
  drm/radeon: cleaned up VCO output settings for DP audio
  drm/radeon: properly byte swap vce firmware setup
  drm/radeon: clean up fujitsu quirks
  drm/radeon: Fix "slow" audio over DP on DCE8+
  drm/radeon: call hpd_irq_event on resume
  drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr
  drm/dp/mst: deallocate payload on port destruction
  drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
  drm/dp/mst: move GUID storage from mgr, port to only mst branch
  drm/dp/mst: Calculate MST PBN with 31.32 fixed point
  drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
  drm/dp/mst: fix in RAD element access
  drm/dp/mst: fix in MSTB RAD initialization
  drm/dp/mst: always send reply for UP request
  drm/dp/mst: process broadcast messages correctly
  drm/nouveau: platform: Fix deferred probe
  drm/nouveau/disp/dp: ensure sink is powered up before attempting link training
  drm/nouveau/display: Enable vblank irqs after display engine is on again.
  drm/nouveau/kms: take mode_config mutex in connector hotplug path
  drm/amdgpu/pm: adjust display configuration after powerstate
  drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc.
  drm/amdgpu: use post-decrement in error handling
  drm/amdgpu: fix issue with overlapping userptrs
  drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2)
  drm/amdgpu: remove unnecessary forward declaration
  drm/amdgpu: fix s4 resume
  drm/amdgpu: remove exp hardware support from iceland
  drm/amdgpu: don't load MEC2 on topaz
  drm/amdgpu: drop topaz support from gmc8 module
  drm/amdgpu: pull topaz gmc bits into gmc_v7
  drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
  drm/amdgpu: iceland use CI based MC IP
  drm/amdgpu: move gmc7 support out of CIK dependency
  drm/amdgpu: no need to load MC firmware on fiji
  drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
  drm/amdgpu: fix tonga smu resume
  drm/amdgpu: fix lost sync_to if scheduler is enabled.
  drm/amdgpu: call hpd_irq_event on resume
  drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map
  drm/vmwgfx: respect 'nomodeset'
  drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
  drm/vmwgfx: Fix an incorrect lock check
  virtio_pci: fix use after free on release
  virtio_balloon: fix race between migration and ballooning
  virtio_balloon: fix race by fill and leak
  regulator: mt6311: MT6311_REGULATOR needs to select REGMAP_I2C
  regulator: axp20x: Fix GPIO LDO enable value for AXP22x
  clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs
  cxl: use correct operator when writing pcie config space values
  sparc64: fix incorrect sign extension in sys_sparc64_personality
  EDAC, mc_sysfs: Fix freeing bus' name
  EDAC: Robustify workqueues destruction
  MIPS: Fix buffer overflow in syscall_get_arguments()
  MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs
  MIPS: hpet: Choose a safe value for the ETIME check
  MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler
  Revert "MIPS: Fix PAGE_MASK definition"
  cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
  time: Avoid signed overflow in timekeeping_get_ns()
  Bluetooth: 6lowpan: Fix handling of uncompressed IPv6 packets
  Bluetooth: 6lowpan: Fix kernel NULL pointer dereferences
  Bluetooth: Fix incorrect removing of IRKs
  Bluetooth: Add support of Toshiba Broadcom based devices
  Bluetooth: Use continuous scanning when creating LE connections
  Drivers: hv: vmbus: Fix a Host signaling bug
  tools: hv: vss: fix the write()'s argument: error -> vss_msg
  mmc: sdhci: Allow override of get_cd() called from sdhci_request()
  mmc: sdhci: Allow override of mmc host operations
  mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
  mmc: pxamci: fix again read-only gpio detection polarity
  mmc: sdhci-acpi: Fix card detect race for Intel BXT/APL
  mmc: mmci: fix an ages old detection error
  mmc: core: Enable tuning according to the actual timing
  mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
  mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400
  mmc: sdio: Fix invalid vdd in voltage switch power cycle
  mmc: sdhci: Fix DMA descriptor with zero data length
  mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT
  mmc: usdhi6rol0: handle NULL data in timeout
  clockevents/tcb_clksrc: Prevent disabling an already disabled clock
  posix-clock: Fix return code on the poll method's error path
  irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
  irqchip/atmel-aic: Fix wrong bit operation for IRQ priority
  irqchip/mxs: Add missing set_handle_irq()
  irqchip/omap-intc: Add support for spurious irq handling
  coresight: checking for NULL string in coresight_name_match()
  dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
  dm snapshot: fix hung bios when copy error occurs
  dm space map metadata: remove unused variable in brb_pop()
  tda1004x: only update the frontend properties if locked
  vb2: fix a regression in poll() behavior for output,streams
  gspca: ov534/topro: prevent a division by 0
  si2157: return -EINVAL if firmware blob is too big
  media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode
  rc: sunxi-cir: Initialize the spinlock properly
  namei: ->d_inode of a pinned dentry is stable only for positives
  mei: validate request value in client notify request ioctl
  mei: fix fasync return value on error
  rtlwifi: rtl8723be: Fix module parameter initialization
  rtlwifi: rtl8188ee: Fix module parameter initialization
  rtlwifi: rtl8192se: Fix module parameter initialization
  rtlwifi: rtl8723ae: Fix initialization of module parameters
  rtlwifi: rtl8192de: Fix incorrect module parameter descriptions
  rtlwifi: rtl8192ce: Fix handling of module parameters
  rtlwifi: rtl8192cu: Add missing parameter setup
  rtlwifi: rtl_pci: Fix kernel panic
  locks: fix unlock when fcntl_setlk races with a close
  um: link with -lpthread
  uml: fix hostfs mknod()
  uml: flush stdout before forking
  s390/fpu: signals vs. floating point control register
  s390/compat: correct restore of high gprs on signal return
  s390/dasd: fix performance drop
  s390/dasd: fix refcount for PAV reassignment
  s390/dasd: prevent incorrect length error under z/VM after PAV changes
  s390: fix normalization bug in exception table sorting
  btrfs: initialize the seq counter in struct btrfs_device
  Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots
  Btrfs: fix transaction handle leak on failure to create hard link
  Btrfs: fix number of transaction units required to create symlink
  Btrfs: send, don't BUG_ON() when an empty symlink is found
  btrfs: statfs: report zero available if metadata are exhausted
  Btrfs: igrab inode in writepage
  Btrfs: add missing brelse when superblock checksum fails
  KVM: s390: fix memory overwrites when vx is disabled
  s390/kvm: remove dependency on struct save_area definition
  clocksource/drivers/vt8500: Increase the minimum delta
  genirq: Validate action before dereferencing it in handle_irq_event_percpu()
  mm: numa: quickly fail allocations for NUMA balancing on full nodes
  mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
  ocfs2: unlock inode if deleting inode from orphan fails
  drm/i915: shut up gen8+ SDE irq dmesg noise
  iw_cxgb3: Fix incorrectly returning error on success
  spi: omap2-mcspi: Prevent duplicate gpio_request
  drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
  USB: option: add "4G LTE usb-modem U901"
  USB: option: add support for SIM7100E
  USB: cp210x: add IDs for GE B650V3 and B850V3 boards
  usb: dwc3: Fix assignment of EP transfer resources
  can: ems_usb: Fix possible tx overflow
  dm thin: fix race condition when destroying thin pool workqueue
  bcache: Change refill_dirty() to always scan entire disk if necessary
  bcache: prevent crash on changing writeback_running
  bcache: allows use of register in udev to avoid "device_busy" error.
  bcache: unregister reboot notifier if bcache fails to unregister device
  bcache: fix a leak in bch_cached_dev_run()
  bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device
  bcache: Add a cond_resched() call to gc
  bcache: fix a livelock when we cause a huge number of cache misses
  lib/ucs2_string: Correct ucs2 -> utf8 conversion
  efi: Add pstore variables to the deletion whitelist
  efi: Make efivarfs entries immutable by default
  efi: Make our variable validation list include the guid
  efi: Do variable name validation tests in utf8
  efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
  lib/ucs2_string: Add ucs2 -> utf8 helper functions
  ARM: 8457/1: psci-smp is built only for SMP
  drm/gma500: Use correct unref in the gem bo create function
  devm_memremap: Fix error value when memremap failed
  KVM: s390: fix guest fprs memory leak
  arm64: errata: Add -mpc-relative-literal-loads to build flags
  ARM: debug-ll: fix BCM63xx entry for multiplatform
  ext4: fix bh->b_state corruption
  sctp: Fix port hash table size computation
  unix_diag: fix incorrect sign extension in unix_lookup_by_ino
  tipc: unlock in error path
  rtnl: RTM_GETNETCONF: fix wrong return value
  IFF_NO_QUEUE: Fix for drivers not calling ether_setup()
  tcp/dccp: fix another race at listener dismantle
  route: check and remove route cache when we get route
  net_sched fix: reclassification needs to consider ether protocol changes
  pppoe: fix reference counting in PPPoE proxy
  l2tp: Fix error creating L2TP tunnels
  net/mlx4_en: Avoid changing dev->features directly in run-time
  net/mlx4_en: Choose time-stamping shift value according to HW frequency
  net/mlx4_en: Count HW buffer overrun only once
  qmi_wwan: add "4G LTE usb-modem U901"
  tcp: md5: release request socket instead of listener
  tipc: fix premature addition of node to lookup table
  af_unix: Guard against other == sk in unix_dgram_sendmsg
  af_unix: Don't set err in unix_stream_read_generic unless there was an error
  ipv4: fix memory leaks in ip_cmsg_send() callers
  bonding: Fix ARP monitor validation
  bpf: fix branch offset adjustment on backjumps after patching ctx expansion
  flow_dissector: Fix unaligned access in __skb_flow_dissector when used by eth_get_headlen
  net: Copy inner L3 and L4 headers as unaligned on GRE TEB
  sctp: translate network order to host order when users get a hmacid
  enic: increment devcmd2 result ring in case of timeout
  tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs
  net:Add sysctl_max_skb_frags
  tcp: do not drop syn_recv on all icmp reports
  unix: correctly track in-flight fds in sending process user_struct
  ipv6: fix a lockdep splat
  ipv6: addrconf: Fix recursive spin lock call
  ipv6/udp: use sticky pktinfo egress ifindex on connect()
  ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()
  tcp: beware of alignments in tcp_get_info()
  switchdev: Require RTNL mutex to be held when sending FDB notifications
  inet: frag: Always orphan skbs inside ip_defrag()
  tipc: fix connection abort during subscription cancel
  net: dsa: fix mv88e6xxx switches
  sctp: allow setting SCTP_SACK_IMMEDIATELY by the application
  pptp: fix illegal memory access caused by multiple bind()s
  af_unix: fix struct pid memory leak
  tcp: fix NULL deref in tcp_v4_send_ack()
  lwt: fix rx checksum setting for lwt devices tunneling over ipv6
  tunnels: Allow IPv6 UDP checksums to be correctly controlled.
  net: dp83640: Fix tx timestamp overflow handling.
  gro: Make GRO aware of lightweight tunnels.
  af_iucv: Validate socket address length in iucv_sock_bind()

Conflicts:
	arch/arm64/Makefile
	arch/arm64/include/asm/cacheflush.h
	drivers/mmc/host/sdhci.c
	drivers/usb/dwc3/ep0.c
	drivers/usb/dwc3/gadget.c
	kernel/module.c
	sound/core/pcm_compat.c

CRs-Fixed: 1010239
Signed-off-by: Runmin Wang <runminw@codeaurora.org>
Change-Id: I41a28636fc9ad91f9d979b191784609476294cdf
2016-07-12 11:40:49 -07:00
Riley Andrews
e3ba00c712 android: binder: Don't use sched_preempt_enable_no_resched.
The correct function is prempt_enable_no_resched(). The other
function is reserved for the scheduler core.

Change-Id: Ib36697de003f6a59a608a0024d5351dc15ff8715
Signed-off-by: Todd Kjos <tkjos@google.com>
Git-commit: 776e5bca6446b3aac03b4685b4f4f72446ddcba0
Git-repo: https://android.googlesource.com/kernel/msm
[odhyade@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Omprakash Dhyade <odhyade@codeaurora.org>
2016-05-10 13:20:20 -07:00
Riley Andrews
3956eabb34 android: binder: Use wake up hint for synchronous transactions.
Use wake_up_interruptible_sync() to hint to the scheduler binder
transactions are synchronous wakeups. Disable premption while waking
to avoid ping-ponging on the binder lock.

Change-Id: Ic406a232d0873662f80148e37acefe5243d912a0
Signed-off-by: Todd Kjos <tkjos@google.com>
Git-commit: 443c026e90820170aa3db2c21d2933ae5922f900
Git-repo: https://android.googlesource.com/kernel/msm
Signed-off-by: Omprakash Dhyade <odhyade@codeaurora.org>
2016-05-10 13:20:20 -07:00
Alex Shi
fa6e6c7406 Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Conflicts solution:
	keep 'KBUILD_CFLAGS += -fno-pic'
	in arch/arm64/Makefile
2016-03-14 15:32:21 +08:00
Lisa Du
3e90844662 drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE
commit 7a64cd887fdb97f074c3fda03bee0bfb9faceac3 upstream.

There's one point was missed in the patch commit da49889deb ("staging:
binder: Support concurrent 32 bit and 64 bit processes."). When configure
BINDER_IPC_32BIT, the size of binder_uintptr_t was 32bits, but size of
void * is 64bit on 64bit system. Correct it here.

Signed-off-by: Lisa Du <cldu@marvell.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Fixes: da49889deb ("staging: binder: Support concurrent 32 bit and 64 bit processes.")
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 15:07:10 -08:00
Riley Andrews
aa29c32d39 android: drivers: workaround debugfs race in binder
If a /d/binder/proc/[pid] entry is kept open after linux has
torn down the associated process, binder_proc_show can deference
an invalid binder_proc that has been stashed in the debugfs
inode.  Validate that the binder_proc ptr passed into binder_proc_show
has not been freed by looking for it within the global process list
whilst the global lock is held. If the ptr is not valid, print nothing.

Bug: 19587483

Change-Id: Idd5ad79f5648b7eed49d1ec75ae93f9e12a74ee9
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2016-02-16 13:54:24 -08:00
Arve Hjønnevåg
52354e599d android: binder: More offset validation
Make sure offsets don't point to overlapping flat_binder_object
structs.

Change-Id: I12c3757872e0f16dbd6e3b92fd214004cf87047e
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2016-02-16 13:54:23 -08:00
Kirill A. Shutemov
7cbea8dc01 mm: mark most vm_operations_struct const
With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct
structs should be constant.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10 13:29:01 -07:00
Andrey Ryabinin
f4c72c7030 android: binder: fix binder mmap failures
binder_update_page_range() initializes only addr and size
fields in 'struct vm_struct tmp_area;' and passes it to
map_vm_area().

Before 71394fe501 ("mm: vmalloc: add flag preventing guard hole allocation")
this was because map_vm_area() didn't use any other fields
in vm_struct except addr and size.

Now get_vm_area_size() (used in map_vm_area()) reads vm_struct's
flags to determine whether vm area has guard hole or not.

binder_update_page_range() don't initialize flags field, so
this causes following binder mmap failures:
-----------[ cut here ]------------
WARNING: CPU: 0 PID: 1971 at mm/vmalloc.c:130
vmap_page_range_noflush+0x119/0x144()
CPU: 0 PID: 1971 Comm: healthd Not tainted 4.0.0-rc1-00399-g7da3fdc-dirty #157
Hardware name: ARM-Versatile Express
[<c001246d>] (unwind_backtrace) from [<c000f7f9>] (show_stack+0x11/0x14)
[<c000f7f9>] (show_stack) from [<c049a221>] (dump_stack+0x59/0x7c)
[<c049a221>] (dump_stack) from [<c001cf21>] (warn_slowpath_common+0x55/0x84)
[<c001cf21>] (warn_slowpath_common) from [<c001cfe3>]
(warn_slowpath_null+0x17/0x1c)
[<c001cfe3>] (warn_slowpath_null) from [<c00c66c5>]
(vmap_page_range_noflush+0x119/0x144)
[<c00c66c5>] (vmap_page_range_noflush) from [<c00c716b>] (map_vm_area+0x27/0x48)
[<c00c716b>] (map_vm_area) from [<c038ddaf>]
(binder_update_page_range+0x12f/0x27c)
[<c038ddaf>] (binder_update_page_range) from [<c038e857>]
(binder_mmap+0xbf/0x1ac)
[<c038e857>] (binder_mmap) from [<c00c2dc7>] (mmap_region+0x2eb/0x4d4)
[<c00c2dc7>] (mmap_region) from [<c00c3197>] (do_mmap_pgoff+0x1e7/0x250)
[<c00c3197>] (do_mmap_pgoff) from [<c00b35b5>] (vm_mmap_pgoff+0x45/0x60)
[<c00b35b5>] (vm_mmap_pgoff) from [<c00c1f39>] (SyS_mmap_pgoff+0x5d/0x80)
[<c00c1f39>] (SyS_mmap_pgoff) from [<c000ce81>] (ret_fast_syscall+0x1/0x5c)
---[ end trace 48c2c4b9a1349e54 ]---
binder: 1982: binder_alloc_buf failed to map page at f0e00000 in kernel
binder: binder_mmap: 1982 b6bde000-b6cdc000 alloc small buf failed -12

Use map_kernel_range_noflush() instead of map_vm_area() as this is better
API for binder's purposes and it allows to get rid of 'vm_struct tmp_area' at all.

Fixes: 71394fe501 ("mm: vmalloc: add flag preventing guard hole allocation")
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Tested-by: Amit Pundir <amit.pundir@linaro.org>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-01 18:43:51 -08:00
Stephen Smalley
79af73079d Add security hooks to binder and implement the hooks for SELinux.
Add security hooks to the binder and implement the hooks for SELinux.
The security hooks enable security modules such as SELinux to implement
controls over binder IPC.  The security hooks include support for
controlling what process can become the binder context manager
(binder_set_context_mgr), controlling the ability of a process
to invoke a binder transaction/IPC to another process (binder_transaction),
controlling the ability of a process to transfer a binder reference to
another process (binder_transfer_binder), and controlling the ability
of a process to transfer an open file to another process (binder_transfer_file).

These hooks have been included in the Android kernel trees since Android 4.3.

(Updated to reflect upstream relocation and changes to the binder driver,
changes to the LSM audit data structures, coding style cleanups, and
to add inline documentation for the hooks).

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Nick Kralevich <nnk@google.com>
Acked-by: Jeffrey Vander Stoep <jeffv@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-25 09:17:57 -08:00
Greg Kroah-Hartman
9246a4a98a android: binder: remove binder.h
binder.h isn't needed to just include a uapi file and set a single
define, so move it into binder.c to save a few lines of code.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-20 10:30:15 +08:00
Greg Kroah-Hartman
777783e0ab staging: android: binder: move to the "real" part of the kernel
The Android binder code has been "stable" for many years now.  No matter
what comes in the future, we are going to have to support this API, so
might as well move it to the "real" part of the kernel as there's no
real work that needs to be done to the existing code.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-20 10:30:15 +08:00