Commit Graph

3824 Commits

Author SHA1 Message Date
Stanislav Fomichev
bca844a8c9 selftests/bpf: add test_sysctl and map_tests/tests.h to .gitignore
Missing files are:
* tools/testing/selftests/bpf/map_tests/tests.h - autogenerated
* tools/testing/selftests/bpf/test_sysctl - binary

Fixes: 51a0e301a5 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps")
Fixes: 1f5fa9ab6e ("selftests/bpf: Test BPF_CGROUP_SYSCTL")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-05-16 11:41:31 -07:00
Stanislav Fomichev
3d21b6525c selftests/bpf: add prog detach to flow_dissector test
In case we are not running in a namespace (which we don't do by default),
let's try to detach the bpf program that we use for eth_get_headlen tests.

Fixes: 0905beec9f ("selftests/bpf: run flow dissector tests in skb-less mode")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-16 01:33:33 +02:00
Stanislav Fomichev
a9047734eb selftests/bpf: add missing \n to flow_dissector CHECK errors
Otherwise, in case of an error, everything gets mushed together.

Fixes: a5cb33464e ("selftests/bpf: make flow dissector tests more extensible")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-16 01:33:33 +02:00
Daniel Borkmann
d2baab62a1 bpf: test ref bit from data path and add new tests for syscall path
The test_lru_map is relying on marking the LRU map entry via regular
BPF map lookup from system call side. This is basically for simplicity
reasons. Given we fixed marking entries in that case, the test needs
to be fixed as well. Here we add a small drop-in replacement to retain
existing behavior for the tests by marking out of the BPF program and
transferring the retrieved value out via temporary map. This also adds
new test cases to track the new behavior where two elements are marked,
one via system call side and one via program side, where the next update
then evicts the key looked up only from system call side.

  # ./test_lru_map
  nr_cpus:8

  test_lru_sanity0 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity1 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity2 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity3 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity4 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity5 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity7 (map_type:9 map_flags:0x0): Pass
  test_lru_sanity8 (map_type:9 map_flags:0x0): Pass

  test_lru_sanity0 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity1 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity2 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity3 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity4 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity5 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity7 (map_type:10 map_flags:0x0): Pass
  test_lru_sanity8 (map_type:10 map_flags:0x0): Pass

  test_lru_sanity0 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity4 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity6 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity7 (map_type:9 map_flags:0x2): Pass
  test_lru_sanity8 (map_type:9 map_flags:0x2): Pass

  test_lru_sanity0 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity4 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity6 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity7 (map_type:10 map_flags:0x2): Pass
  test_lru_sanity8 (map_type:10 map_flags:0x2): Pass

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-05-14 10:47:29 -07:00
Kelsey Skunberg
ff1f28c03f selftests: bpf: Add files generated after build to .gitignore
The following files are generated after building /selftests/bpf/ and
should be added to .gitignore:

	- libbpf.pc
	- libbpf.so.*

Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-13 01:16:37 +02:00
Daniel Borkmann
9858381253 bpf: add various test cases for backward jumps
Add a couple of tests to make sure branch(/call) offset adjustments
are correctly performed.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-13 01:08:55 +02:00
Linus Torvalds
b970afcfca powerpc updates for 5.2
Highlights:
 
  - Support for Kernel Userspace Access/Execution Prevention (like
    SMAP/SMEP/PAN/PXN) on some 64-bit and 32-bit CPUs. This prevents the kernel
    from accidentally accessing userspace outside copy_to/from_user(), or
    ever executing userspace.
 
  - KASAN support on 32-bit.
 
  - Rework of where we map the kernel, vmalloc, etc. on 64-bit hash to use the
    same address ranges we use with the Radix MMU.
 
  - A rewrite into C of large parts of our idle handling code for 64-bit Book3S
    (ie. power8 & power9).
 
  - A fast path entry for syscalls on 32-bit CPUs, for a 12-17% speedup in the
    null_syscall benchmark.
 
  - On 64-bit bare metal we have support for recovering from errors with the time
    base (our clocksource), however if that fails currently we hang in __delay()
    and never crash. We now have support for detecting that case and short
    circuiting __delay() so we at least panic() and reboot.
 
  - Add support for optionally enabling the DAWR on Power9, which had to be
    disabled by default due to a hardware erratum. This has the effect of
    enabling hardware breakpoints for GDB, the downside is a badly behaved
    program could crash the machine by pointing the DAWR at cache inhibited
    memory. This is opt-in obviously.
 
  - xmon, our crash handler, gets support for a read only mode where operations
    that could change memory or otherwise disturb the system are disabled.
 
 Plus many clean-ups, reworks and minor fixes etc.
 
 Thanks to:
   Christophe Leroy, Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Andrew
   Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anton Blanchard, Ben Hutchings,
   Bo YU, Breno Leitao, Cédric Le Goater, Christopher M. Riedl, Christoph
   Hellwig, Colin Ian King, David Gibson, Ganesh Goudar, Gautham R. Shenoy,
   George Spelvin, Greg Kroah-Hartman, Greg Kurz, Horia Geantă, Jagadeesh
   Pagadala, Joel Stanley, Joe Perches, Julia Lawall, Laurentiu Tudor, Laurent
   Vivier, Lukas Bulwahn, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu
   Malaterre, Michael Neuling, Mukesh Ojha, Nathan Fontenot, Nathan Lynch,
   Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Peng Hao, Qian Cai, Ravi
   Bangoria, Rick Lindsley, Russell Currey, Sachin Sant, Stewart Smith, Sukadev
   Bhattiprolu, Thomas Huth, Tobin C. Harding, Tyrel Datwyler, Valentin
   Schneider, Wei Yongjun, Wen Yang, YueHaibing.
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Merge tag 'powerpc-5.2-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Slightly delayed due to the issue with printk() calling
  probe_kernel_read() interacting with our new user access prevention
  stuff, but all fixed now.

  The only out-of-area changes are the addition of a cpuhp_state, small
  additions to Documentation and MAINTAINERS updates.

  Highlights:

   - Support for Kernel Userspace Access/Execution Prevention (like
     SMAP/SMEP/PAN/PXN) on some 64-bit and 32-bit CPUs. This prevents
     the kernel from accidentally accessing userspace outside
     copy_to/from_user(), or ever executing userspace.

   - KASAN support on 32-bit.

   - Rework of where we map the kernel, vmalloc, etc. on 64-bit hash to
     use the same address ranges we use with the Radix MMU.

   - A rewrite into C of large parts of our idle handling code for
     64-bit Book3S (ie. power8 & power9).

   - A fast path entry for syscalls on 32-bit CPUs, for a 12-17% speedup
     in the null_syscall benchmark.

   - On 64-bit bare metal we have support for recovering from errors
     with the time base (our clocksource), however if that fails
     currently we hang in __delay() and never crash. We now have support
     for detecting that case and short circuiting __delay() so we at
     least panic() and reboot.

   - Add support for optionally enabling the DAWR on Power9, which had
     to be disabled by default due to a hardware erratum. This has the
     effect of enabling hardware breakpoints for GDB, the downside is a
     badly behaved program could crash the machine by pointing the DAWR
     at cache inhibited memory. This is opt-in obviously.

   - xmon, our crash handler, gets support for a read only mode where
     operations that could change memory or otherwise disturb the system
     are disabled.

  Plus many clean-ups, reworks and minor fixes etc.

  Thanks to: Christophe Leroy, Akshay Adiga, Alastair D'Silva, Alexey
  Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar,
  Anton Blanchard, Ben Hutchings, Bo YU, Breno Leitao, Cédric Le Goater,
  Christopher M. Riedl, Christoph Hellwig, Colin Ian King, David Gibson,
  Ganesh Goudar, Gautham R. Shenoy, George Spelvin, Greg Kroah-Hartman,
  Greg Kurz, Horia Geantă, Jagadeesh Pagadala, Joel Stanley, Joe
  Perches, Julia Lawall, Laurentiu Tudor, Laurent Vivier, Lukas Bulwahn,
  Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
  Neuling, Mukesh Ojha, Nathan Fontenot, Nathan Lynch, Nicholas Piggin,
  Nick Desaulniers, Oliver O'Halloran, Peng Hao, Qian Cai, Ravi
  Bangoria, Rick Lindsley, Russell Currey, Sachin Sant, Stewart Smith,
  Sukadev Bhattiprolu, Thomas Huth, Tobin C. Harding, Tyrel Datwyler,
  Valentin Schneider, Wei Yongjun, Wen Yang, YueHaibing"

* tag 'powerpc-5.2-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (205 commits)
  powerpc/64s: Use early_mmu_has_feature() in set_kuap()
  powerpc/book3s/64: check for NULL pointer in pgd_alloc()
  powerpc/mm: Fix hugetlb page initialization
  ocxl: Fix return value check in afu_ioctl()
  powerpc/mm: fix section mismatch for setup_kup()
  powerpc/mm: fix redundant inclusion of pgtable-frag.o in Makefile
  powerpc/mm: Fix makefile for KASAN
  powerpc/kasan: add missing/lost Makefile
  selftests/powerpc: Add a signal fuzzer selftest
  powerpc/booke64: set RI in default MSR
  ocxl: Provide global MMIO accessors for external drivers
  ocxl: move event_fd handling to frontend
  ocxl: afu_irq only deals with IRQ IDs, not offsets
  ocxl: Allow external drivers to use OpenCAPI contexts
  ocxl: Create a clear delineation between ocxl backend & frontend
  ocxl: Don't pass pci_dev around
  ocxl: Split pci.c
  ocxl: Remove some unused exported symbols
  ocxl: Remove superfluous 'extern' from headers
  ocxl: read_pasid never returns an error, so make it void
  ...
2019-05-10 05:29:27 -07:00
Linus Torvalds
601e6bcc4e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Several bug fixes, many are quick merge-window regression cures:

   - When NLM_F_EXCL is not set, allow same fib rule insertion. From
     Hangbin Liu.

   - Several cures in sja1105 DSA driver (while loop exit condition fix,
     return of negative u8, etc.) from Vladimir Oltean.

   - Handle tx/rx delays in realtek PHY driver properly, from Serge
     Semin.

   - Double free in cls_matchall, from Pieter Jansen van Vuuren.

   - Disable SIOCSHWTSTAMP in macvlan/vlan containers, from Hangbin Liu.

   - Endainness fixes in aqc111, from Oliver Neukum.

   - Handle errors in packet_init properly, from Haibing Yue.

   - Various W=1 warning fixes in kTLS, from Jakub Kicinski"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
  nfp: add missing kdoc
  net/tls: handle errors from padding_length()
  net/tls: remove set but not used variables
  docs/btf: fix the missing section marks
  nfp: bpf: fix static check error through tightening shift amount adjustment
  selftests: bpf: initialize bpf_object pointers where needed
  packet: Fix error path in packet_init
  net/tcp: use deferred jump label for TCP acked data hook
  net: aquantia: fix undefined devm_hwmon_device_register_with_info reference
  aqc111: fix double endianness swap on BE
  aqc111: fix writing to the phy on BE
  aqc111: fix endianness issue in aqc111_change_mtu
  vlan: disable SIOCSHWTSTAMP in container
  macvlan: disable SIOCSHWTSTAMP in container
  tipc: fix hanging clients using poll with EPOLLOUT flag
  tuntap: synchronize through tfiles array instead of tun->numqueues
  tuntap: fix dividing by zero in ebpf queue selection
  dwmac4_prog_mtl_tx_algorithms() missing write operation
  ptp_qoriq: fix NULL access if ptp dt node missing
  net/sched: avoid double free on matchall reoffload
  ...
2019-05-09 17:00:51 -07:00
Lorenz Bauer
07b619919d selftests: bpf: initialize bpf_object pointers where needed
There are a few tests which call bpf_object__close on uninitialized
bpf_object*, which may segfault. Explicitly zero-initialise these pointers
to avoid this.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-05-09 15:53:56 -07:00
Linus Torvalds
abde77eb5c Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
 "This includes Roman's cgroup2 freezer implementation.

  It's a separate machanism from cgroup1 freezer. Instead of blocking
  user tasks in arbitrary uninterruptible sleeps, the new implementation
  extends jobctl stop - frozen tasks are trapped in jobctl stop until
  thawed and can be killed and ptraced. Lots of thanks to Oleg for
  sheperding the effort.

  Other than that, there are a few trivial changes"

* 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: never call do_group_exit() with task->frozen bit set
  kernel: cgroup: fix misuse of %x
  cgroup: get rid of cgroup_freezer_frozen_exit()
  cgroup: prevent spurious transition into non-frozen state
  cgroup: Remove unused cgrp variable
  cgroup: document cgroup v2 freezer interface
  cgroup: add tracing points for cgroup v2 freezer
  cgroup: make TRACE_CGROUP_PATH irq-safe
  kselftests: cgroup: add freezer controller self-tests
  kselftests: cgroup: don't fail on cg_kill_all() error in cg_destroy()
  cgroup: cgroup v2 freezer
  cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
  cgroup: implement __cgroup_task_count() helper
  cgroup: rename freezer.c into legacy_freezer.c
  cgroup: remove extra cgroup_migrate_finish() call
2019-05-09 13:52:12 -07:00
Linus Torvalds
e7a1414f9d media updates for v5.1-rc1
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Merge tag 'media/v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - remove the deprecated Zoran driver from staging

 - new I2C driver: ST MIPID02 CSI-2 camera bridge

 - new platform driver: Amlogic Meson AO CEC G12A Controller

 - add support for USB audio via the media controller

 - au0828 driver is now supported via the media controller on both on
   media and on usbaudio

 - new kernel test for the media device allocator

 - add support for stateless decoder at vicodec driver

 - lots of other driver improvements fixes and cleanups

* tag 'media/v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (218 commits)
  media: dt-bindings: aspeed-video: Add missing memory-region property
  media: platform: Aspeed: Make reserved memory optional
  media: platform: Aspeed: Remove use of reset line
  media: stm32-dcmi: return appropriate error codes during probe
  media: vsp1: Add support for missing 16-bit RGB555 formats
  media: vsp1: Add support for missing 16-bit RGB444 formats
  media: vsp1: Add support for missing 32-bit RGB formats
  media: v4l: Add definitions for missing 16-bit RGB555 formats
  media: v4l: Add definitions for missing 16-bit RGB4444 formats
  media: v4l: Add definitions for missing 32-bit RGB formats
  media: zoran: remove deprecated driver
  media: MAINTAINERS: Update AO CEC with ao-cec-g12a driver
  media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver
  media: dt-bindings: media: meson-ao-cec: Add G12A AO-CEC-B Compatible
  media: cros-ec-cec: decrement HDMI device refcount
  media: seco-cec: decrement HDMI device refcount
  media: tegra_cec: use new cec_notifier_parse_hdmi_phandle helper
  media: stih_cec: use new cec_notifier_parse_hdmi_phandle helper
  media: s5p_cec: use new cec_notifier_parse_hdmi_phandle helper
  media: meson: ao-cec: use new cec_notifier_parse_hdmi_phandle helper
  ...
2019-05-08 11:13:17 -07:00
Linus Torvalds
80f232121b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "Highlights:

   1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.

   2) Add fib_sync_mem to control the amount of dirty memory we allow to
      queue up between synchronize RCU calls, from David Ahern.

   3) Make flow classifier more lockless, from Vlad Buslov.

   4) Add PHY downshift support to aquantia driver, from Heiner
      Kallweit.

   5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
      contention on SLAB spinlocks in heavy RPC workloads.

   6) Partial GSO offload support in XFRM, from Boris Pismenny.

   7) Add fast link down support to ethtool, from Heiner Kallweit.

   8) Use siphash for IP ID generator, from Eric Dumazet.

   9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
      entries, from David Ahern.

  10) Move skb->xmit_more into a per-cpu variable, from Florian
      Westphal.

  11) Improve eBPF verifier speed and increase maximum program size,
      from Alexei Starovoitov.

  12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
      spinlocks. From Neil Brown.

  13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.

  14) Improve link partner cap detection in generic PHY code, from
      Heiner Kallweit.

  15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
      Maguire.

  16) Remove SKB list implementation assumptions in SCTP, your's truly.

  17) Various cleanups, optimizations, and simplifications in r8169
      driver. From Heiner Kallweit.

  18) Add memory accounting on TX and RX path of SCTP, from Xin Long.

  19) Switch PHY drivers over to use dynamic featue detection, from
      Heiner Kallweit.

  20) Support flow steering without masking in dpaa2-eth, from Ioana
      Ciocoi.

  21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
      Pirko.

  22) Increase the strict parsing of current and future netlink
      attributes, also export such policies to userspace. From Johannes
      Berg.

  23) Allow DSA tag drivers to be modular, from Andrew Lunn.

  24) Remove legacy DSA probing support, also from Andrew Lunn.

  25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
      Haabendal.

  26) Add a generic tracepoint for TX queue timeouts to ease debugging,
      from Cong Wang.

  27) More indirect call optimizations, from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
  cxgb4: Fix error path in cxgb4_init_module
  net: phy: improve pause mode reporting in phy_print_status
  dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
  net: macb: Change interrupt and napi enable order in open
  net: ll_temac: Improve error message on error IRQ
  net/sched: remove block pointer from common offload structure
  net: ethernet: support of_get_mac_address new ERR_PTR error
  net: usb: smsc: fix warning reported by kbuild test robot
  staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
  net: dsa: support of_get_mac_address new ERR_PTR error
  net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
  vrf: sit mtu should not be updated when vrf netdev is the link
  net: dsa: Fix error cleanup path in dsa_init_module
  l2tp: Fix possible NULL pointer dereference
  taprio: add null check on sched_nest to avoid potential null pointer dereference
  net: mvpp2: cls: fix less than zero check on a u32 variable
  net_sched: sch_fq: handle non connected flows
  net_sched: sch_fq: do not assume EDT packets are ordered
  net: hns3: use devm_kcalloc when allocating desc_cb
  net: hns3: some cleanup for struct hns3_enet_ring
  ...
2019-05-07 22:03:58 -07:00
Linus Torvalds
67a2422239 for-5.2/block-20190507
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Merge tag 'for-5.2/block-20190507' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "Nothing major in this series, just fixes and improvements all over the
  map. This contains:

   - Series of fixes for sed-opal (David, Jonas)

   - Fixes and performance tweaks for BFQ (via Paolo)

   - Set of fixes for bcache (via Coly)

   - Set of fixes for md (via Song)

   - Enabling multi-page for passthrough requests (Ming)

   - Queue release fix series (Ming)

   - Device notification improvements (Martin)

   - Propagate underlying device rotational status in loop (Holger)

   - Removal of mtip32xx trim support, which has been disabled for years
     (Christoph)

   - Improvement and cleanup of nvme command handling (Christoph)

   - Add block SPDX tags (Christoph)

   - Cleanup/hardening of bio/bvec iteration (Christoph)

   - A few NVMe pull requests (Christoph)

   - Removal of CONFIG_LBDAF (Christoph)

   - Various little fixes here and there"

* tag 'for-5.2/block-20190507' of git://git.kernel.dk/linux-block: (164 commits)
  block: fix mismerge in bvec_advance
  block: don't drain in-progress dispatch in blk_cleanup_queue()
  blk-mq: move cancel of hctx->run_work into blk_mq_hw_sysfs_release
  blk-mq: always free hctx after request queue is freed
  blk-mq: split blk_mq_alloc_and_init_hctx into two parts
  blk-mq: free hw queue's resource in hctx's release handler
  blk-mq: move cancel of requeue_work into blk_mq_release
  blk-mq: grab .q_usage_counter when queuing request from plug code path
  block: fix function name in comment
  nvmet: protect discovery change log event list iteration
  nvme: mark nvme_core_init and nvme_core_exit static
  nvme: move command size checks to the core
  nvme-fabrics: check more command sizes
  nvme-pci: check more command sizes
  nvme-pci: remove an unneeded variable initialization
  nvme-pci: unquiesce admin queue on shutdown
  nvme-pci: shutdown on timeout during deletion
  nvme-pci: fix psdt field for single segment sgls
  nvme-multipath: don't print ANA group state by default
  nvme-multipath: split bios with the ns_head bio_set before submitting
  ...
2019-05-07 18:14:36 -07:00
David S. Miller
a9e41a5296 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor conflict with the DSA legacy code removal.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07 17:22:09 -07:00
Linus Torvalds
68253e718c Minor updates to ktest.pl
- Handle meta characters in grub memu
  - Use configurable reboot return code for handling ssh reboots
  - Display names and iteration number on error message
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Merge tag 'ktest-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest updates from Steven Rostedt:
 "Minor updates to ktest.pl

   - Handle meta characters in grub memu

   - Use configurable reboot return code for handling ssh reboots

   - Display names and iteration number on error message"

* tag 'ktest-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest: introduce REBOOT_RETURN_CODE to confirm the result of REBOOT
  ktest: Add support for meta characters in GRUB_MENU
  ktest: Show name and iteration on errors
2019-05-07 10:18:57 -07:00
David S. Miller
14cfbdac66 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-05-06

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Two AF_XDP libbpf fixes for socket teardown; first one an invalid
   munmap and the other one an invalid skmap cleanup, both from Björn.

2) More graceful CONFIG_DEBUG_INFO_BTF handling when pahole is not
   present in the system to generate vmlinux btf info, from Andrii.

3) Fix libbpf and thus fix perf build error with uClibc on arc
   architecture, from Vineet.

4) Fix missing libbpf_util.h header install in libbpf, from William.

5) Exclude bash-completion/bpftool from .gitignore pattern, from Masahiro.

6) Fix up rlimit in test_libbpf_open kselftest test case, from Yonghong.

7) Minor misc cleanups.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07 09:29:16 -07:00
David S. Miller
982e826d31 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2019-05-06

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Two x32 JIT fixes: one which has buggy signed comparisons in 64
   bit conditional jumps and another one for 64 bit negation, both
   from Wang.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-07 09:25:43 -07:00
Linus Torvalds
573de2a6e8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
Pull livepatching updates from Jiri Kosina:

 - livepatching kselftests improvements from Joe Lawrence and Miroslav
   Benes

 - making use of gcc's -flive-patching option when available, from
   Miroslav Benes

 - kobject handling cleanups, from Petr Mladek

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  livepatch: Remove duplicated code for early initialization
  livepatch: Remove custom kobject state handling
  livepatch: Convert error about unsupported reliable stacktrace into a warning
  selftests/livepatch: Add functions.sh to TEST_PROGS_EXTENDED
  kbuild: use -flive-patching when CONFIG_LIVEPATCH is enabled
  selftests/livepatch: use TEST_PROGS for test scripts
2019-05-07 08:56:04 -07:00
Linus Torvalds
71ae5fc87c linux-kselftest-5.2-rc1
This Kselftest update for Linux 5.2-rc1 consists of
 
 - fixes to seccomp test, and kselftest framework
 - cleanups to remove duplicate header defines
 - fixes to efivarfs "make clean" target
 - cgroup cleanup path
 - Moving the IMA kexec_load selftest to selftests/kexec work from
   Mimi Johar and Petr Vorel
 - A framework to kselftest for writing kernel test modules addition
   from Tobin C. Harding
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Merge tag 'linux-kselftest-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest updates from Shuah Khan:

 - fixes to seccomp test, and kselftest framework

 - cleanups to remove duplicate header defines

 - fixes to efivarfs "make clean" target

 - cgroup cleanup path

 - Moving the IMA kexec_load selftest to selftests/kexec work from Mimi
   Johar and Petr Vorel

 - A framework to kselftest for writing kernel test modules addition
   from Tobin C. Harding

* tag 'linux-kselftest-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
  selftests: build and run gpio when output directory is the src dir
  selftests/ipc: Fix msgque compiler warnings
  selftests/efivarfs: clean up test files from test_create*()
  selftests: fix headers_install circular dependency
  selftests/kexec: update get_secureboot_mode
  selftests/kexec: make kexec_load test independent of IMA being enabled
  selftests/kexec: check kexec_load and kexec_file_load are enabled
  selftests/kexec: Add missing '=y' to config options
  selftests/kexec: kexec_file_load syscall test
  selftests/kexec: define "require_root_privileges"
  selftests/kexec: define common logging functions
  selftests/kexec: define a set of common functions
  selftests/kexec: cleanup the kexec selftest
  selftests/kexec: move the IMA kexec_load selftest to selftests/kexec
  selftests/harness: Add 30 second timeout per test
  selftests/seccomp: Handle namespace failures gracefully
  selftests: cgroup: fix cleanup path in test_memcg_subtree_control()
  selftests: efivarfs: remove the test_create_read file if it was exist
  rseq/selftests: Adapt number of threads to the number of detected cpus
  lib: Add test module for strscpy_pad
  ...
2019-05-06 20:29:45 -07:00
Linus Torvalds
14be4c61c2 s390 updates for the 5.2 merge window
- Support for kernel address space layout randomization
 
  - Add support for kernel image signature verification
 
  - Convert s390 to the generic get_user_pages_fast code
 
  - Convert s390 to the stack unwind API analog to x86
 
  - Add support for CPU directed interrupts for PCI devices
 
  - Provide support for MIO instructions to the PCI base layer, this
    will allow the use of direct PCI mappings in user space code
 
  - Add the basic KVM guest ultravisor interface for protected VMs
 
  - Add AT_HWCAP bits for several new hardware capabilities
 
  - Update the CPU measurement facility counter definitions to SVN 6
 
  - Arnds cleanup patches for his quest to get LLVM compiles working
 
  - A vfio-ccw update with bug fixes and support for halt and clear
 
  - Improvements for the hardware TRNG code
 
  - Another round of cleanup for the QDIO layer
 
  - Numerous cleanups and bug fixes
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Merge tag 's390-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Martin Schwidefsky:

 - Support for kernel address space layout randomization

 - Add support for kernel image signature verification

 - Convert s390 to the generic get_user_pages_fast code

 - Convert s390 to the stack unwind API analog to x86

 - Add support for CPU directed interrupts for PCI devices

 - Provide support for MIO instructions to the PCI base layer, this will
   allow the use of direct PCI mappings in user space code

 - Add the basic KVM guest ultravisor interface for protected VMs

 - Add AT_HWCAP bits for several new hardware capabilities

 - Update the CPU measurement facility counter definitions to SVN 6

 - Arnds cleanup patches for his quest to get LLVM compiles working

 - A vfio-ccw update with bug fixes and support for halt and clear

 - Improvements for the hardware TRNG code

 - Another round of cleanup for the QDIO layer

 - Numerous cleanups and bug fixes

* tag 's390-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (98 commits)
  s390/vdso: drop unnecessary cc-ldoption
  s390: fix clang -Wpointer-sign warnigns in boot code
  s390: drop CONFIG_VIRT_TO_BUS
  s390: boot, purgatory: pass $(CLANG_FLAGS) where needed
  s390: only build for new CPUs with clang
  s390: simplify disabled_wait
  s390/ftrace: use HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
  s390/unwind: introduce stack unwind API
  s390/opcodes: add missing instructions to the disassembler
  s390/bug: add entry size to the __bug_table section
  s390: use proper expoline sections for .dma code
  s390/nospec: rename assembler generated expoline thunks
  s390: add missing ENDPROC statements to assembler functions
  locking/lockdep: check for freed initmem in static_obj()
  s390/kernel: add support for kernel address space layout randomization (KASLR)
  s390/kernel: introduce .dma sections
  s390/sclp: do not use static sccbs
  s390/kprobes: use static buffer for insn_page
  s390/kernel: convert SYSCALL and PGM_CHECK handlers to .quad
  s390/kernel: build a relocatable kernel
  ...
2019-05-06 16:42:54 -07:00
Linus Torvalds
5ba2a4b12f Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "This cycles's RCU changes include:

   - a couple of straggling RCU flavor consolidation updates

   - SRCU updates

   - RCU CPU stall-warning updates

   - torture-test updates

   - an LKMM commit adding support for synchronize_srcu_expedited()

   - documentation updates

   - miscellaneous fixes"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
  net/ipv4/netfilter: Update comment from call_rcu_bh() to call_rcu()
  tools/memory-model: Add support for synchronize_srcu_expedited()
  doc/kprobes: Update obsolete RCU update functions
  torture: Suppress false-positive CONFIG_INITRAMFS_SOURCE complaint
  locktorture: NULL cxt.lwsa and cxt.lrsa to allow bad-arg detection
  rcuperf: Fix cleanup path for invalid perf_type strings
  rcutorture: Fix cleanup path for invalid torture_type strings
  rcutorture: Fix expected forward progress duration in OOM notifier
  rcutorture: Remove ->ext_irq_conflict field
  rcutorture: Make rcutorture_extend_mask() comment match the code
  tools/.../rcutorture: Convert to SPDX license identifier
  torture: Don't try to offline the last CPU
  rcu: Fix nohz status in stall warning
  rcu: Move forward-progress checkers into tree_stall.h
  rcu: Move irq-disabled stall-warning checking to tree_stall.h
  rcu: Organize functions in tree_stall.h
  rcu: Move FAST_NO_HZ stall-warning code to tree_stall.h
  rcu: Inline RCU stall-warning info helper functions
  rcu: Move rcu_print_task_exp_stall() to tree_exp.h
  rcu: Inline RCU task stall-warning helper functions
  ...
2019-05-06 12:04:02 -07:00
Jiri Pirko
ad11340994 selftests: Add loopback test
Add selftest for loopback feature

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-05 21:56:57 -07:00
Yonghong Song
6cea33701e selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c
Test test_libbpf.sh failed on my development server with failure
  -bash-4.4$ sudo ./test_libbpf.sh
  [0] libbpf: Error in bpf_object__probe_name():Operation not permitted(1).
      Couldn't load basic 'r0 = 0' BPF program.
  test_libbpf: failed at file test_l4lb.o
  selftests: test_libbpf [FAILED]
  -bash-4.4$

The reason is because my machine has 64KB locked memory by default which
is not enough for this program to get locked memory.
Similar to other bpf selftests, let us increase RLIMIT_MEMLOCK
to infinity, which fixed the issue.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-05-04 23:23:51 -07:00
Linus Torvalds
aa1be08f52 * PPC and ARM bugfixes from submaintainers
* Fix old Windows versions on AMD (recent regression)
 * Fix old Linux versions on processors without EPT
 * Fixes for LAPIC timer optimizations
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:

 - PPC and ARM bugfixes from submaintainers

 - Fix old Windows versions on AMD (recent regression)

 - Fix old Linux versions on processors without EPT

 - Fixes for LAPIC timer optimizations

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
  KVM: nVMX: Fix size checks in vmx_set_nested_state
  KVM: selftests: make hyperv_cpuid test pass on AMD
  KVM: lapic: Check for in-kernel LAPIC before deferencing apic pointer
  KVM: fix KVM_CLEAR_DIRTY_LOG for memory slots of unaligned size
  x86/kvm/mmu: reset MMU context when 32-bit guest switches PAE
  KVM: x86: Whitelist port 0x7e for pre-incrementing %rip
  Documentation: kvm: fix dirty log ioctl arch lists
  KVM: VMX: Move RSB stuffing to before the first RET after VM-Exit
  KVM: arm/arm64: Don't emulate virtual timers on userspace ioctls
  kvm: arm: Skip stage2 huge mappings for unaligned ipa backed by THP
  KVM: arm/arm64: Ensure vcpu target is unset on reset failure
  KVM: lapic: Convert guest TSC to host time domain if necessary
  KVM: lapic: Allow user to disable adaptive tuning of timer advancement
  KVM: lapic: Track lapic timer advance per vCPU
  KVM: lapic: Disable timer advancement if adaptive tuning goes haywire
  x86: kvm: hyper-v: deal with buggy TLB flush requests from WS2012
  KVM: x86: Consider LAPIC TSC-Deadline timer expired if deadline too short
  KVM: PPC: Book3S: Protect memslots while validating user address
  KVM: PPC: Book3S HV: Perserve PSSCR FAKE_SUSPEND bit on guest exit
  KVM: arm/arm64: vgic-v3: Retire pending interrupts on disabling LPIs
  ...
2019-05-03 16:49:46 -07:00
David S. Miller
ff24e4980a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Three trivial overlapping conflicts.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-02 22:14:21 -04:00
Linus Torvalds
ea9866793d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Out of bounds access in xfrm IPSEC policy unlink, from Yue Haibing.

 2) Missing length check for esp4 UDP encap, from Sabrina Dubroca.

 3) Fix byte order of RX STBC access in mac80211, from Johannes Berg.

 4) Inifnite loop in bpftool map create, from Alban Crequy.

 5) Register mark fix in ebpf verifier after pkt/null checks, from Paul
    Chaignon.

 6) Properly use rcu_dereference_sk_user_data in L2TP code, from Eric
    Dumazet.

 7) Buffer overrun in marvell phy driver, from Andrew Lunn.

 8) Several crash and statistics handling fixes to bnxt_en driver, from
    Michael Chan and Vasundhara Volam.

 9) Several fixes to the TLS layer from Jakub Kicinski (copying negative
    amounts of data in reencrypt, reencrypt frag copying, blind nskb->sk
    NULL deref, etc).

10) Several UDP GRO fixes, from Paolo Abeni and Eric Dumazet.

11) PID/UID checks on ipv6 flow labels are inverted, from Willem de
    Bruijn.

12) Use after free in l2tp, from Eric Dumazet.

13) IPV6 route destroy races, also from Eric Dumazet.

14) SCTP state machine can erroneously run recursively, fix from Xin
    Long.

15) Adjust AF_PACKET msg_name length checks, add padding bytes if
    necessary. From Willem de Bruijn.

16) Preserve skb_iif, so that forwarded packets have consistent values
    even if fragmentation is involved. From Shmulik Ladkani.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
  udp: fix GRO packet of death
  ipv6: A few fixes on dereferencing rt->from
  rds: ib: force endiannes annotation
  selftests: fib_rule_tests: print the result and return 1 if any tests failed
  ipv4: ip_do_fragment: Preserve skb_iif during fragmentation
  net/tls: avoid NULL pointer deref on nskb->sk in fallback
  selftests: fib_rule_tests: Fix icmp proto with ipv6
  packet: validate msg_namelen in send directly
  packet: in recvmsg msg_name return at least sizeof sockaddr_ll
  sctp: avoid running the sctp state machine recursively
  stmmac: pci: Fix typo in IOT2000 comment
  Documentation: fix netdev-FAQ.rst markup warning
  ipv6: fix races in ip6_dst_destroy()
  l2ip: fix possible use-after-free
  appletalk: Set error code if register_snap_client failed
  net: dsa: bcm_sf2: fix buffer overflow doing set_rxnfc
  rxrpc: Fix net namespace cleanup
  ipv6/flowlabel: wait rcu grace period before put_pid()
  vrf: Use orig netdev to count Ip6InNoRoutes and a fresh route lookup when sending dest unreach
  tcp: add sanity tests in tcp_add_backlog()
  ...
2019-05-02 11:03:34 -07:00
Breno Leitao
83e367f9ad selftests/powerpc: Add a signal fuzzer selftest
This is a new selftest that raises SIGUSR1 signals and handles it in a
set of different ways, trying to create different scenario for testing
purpose.

This test works raising a signal and calling sigreturn interleaved
with TM operations, as starting, suspending and terminating a
transaction. The test depends on random numbers, and, based on them,
it sets different TM states.

Other than that, the test fills out the user context struct that is
passed to the sigreturn system call with random data, in order to make
sure that the signal handler syscall can handle different and invalid
states properly.

This selftest has command line parameters to control what kind of
tests the user wants to run, as for example, if a transaction should
be started prior to signal being raised, or, after the signal being
raised and before the sigreturn. If no parameter is given, the default
is enabling all options.

This test does not check if the user context is being read and set
properly by the kernel. Its purpose, at this time, is basically
guaranteeing that the kernel does not crash on invalid scenarios.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-05-03 02:55:02 +10:00
Christophe Leroy
26deb04342 powerpc: prepare string/mem functions for KASAN
CONFIG_KASAN implements wrappers for memcpy() memmove() and memset()
Those wrappers are doing the verification then call respectively
__memcpy() __memmove() and __memset(). The arches are therefore
expected to rename their optimised functions that way.

For files on which KASAN is inhibited, #defines are used to allow
them to directly call optimised versions of the functions without
going through the KASAN wrappers.

See commit 393f203f5f ("x86_64: kasan: add interceptors for
memset/memmove/memcpy functions") for details.

Other string / mem functions do not (yet) have kasan wrappers,
we therefore have to fallback to the generic versions when
KASAN is active, otherwise KASAN checks will be skipped.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Fixups to keep selftests working]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-05-03 01:20:25 +10:00
Christophe Leroy
47d99948ee powerpc/mm: Move book3s64 specifics in subdirectory mm/book3s64
Many files in arch/powerpc/mm are only for book3S64. This patch
creates a subdirectory for them.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Update the selftest sym links, shorten new filenames, cleanup some
      whitespace and formatting in the new files.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-05-03 01:18:38 +10:00
Wang YanQing
711aef1bbf bpf, x32: Fix bug for BPF_JMP | {BPF_JSGT, BPF_JSLE, BPF_JSLT, BPF_JSGE}
The current method to compare 64-bit numbers for conditional jump is:

1) Compare the high 32-bit first.

2) If the high 32-bit isn't the same, then goto step 4.

3) Compare the low 32-bit.

4) Check the desired condition.

This method is right for unsigned comparison, but it is buggy for signed
comparison, because it does signed comparison for low 32-bit too.

There is only one sign bit in 64-bit number, that is the MSB in the 64-bit
number, it is wrong to treat low 32-bit as signed number and do the signed
comparison for it.

This patch fixes the bug and adds a testcase in selftests/bpf for such bug.

Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-05-01 23:32:16 +02:00
Hangbin Liu
f68d7c44e7 selftests: fib_rule_tests: print the result and return 1 if any tests failed
Fixes: 65b2b4939a ("selftests: net: initial fib rule tests")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-01 14:30:23 -04:00
David Ahern
15d55bae4e selftests: fib_rule_tests: Fix icmp proto with ipv6
A recent commit returns an error if icmp is used as the ip-proto for
IPv6 fib rules. Update fib_rule_tests to send ipv6-icmp instead of icmp.

Fixes: 5e1a99eae8 ("ipv4: Add ICMPv6 support when parse route ipproto")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-01 11:30:17 -04:00
Vitaly Kuznetsov
eba3afde1c KVM: selftests: make hyperv_cpuid test pass on AMD
Enlightened VMCS is only supported on Intel CPUs but the test shouldn't
fail completely.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-04-30 21:22:16 +02:00
Paolo Bonzini
76d58e0f07 KVM: fix KVM_CLEAR_DIRTY_LOG for memory slots of unaligned size
If a memory slot's size is not a multiple of 64 pages (256K), then
the KVM_CLEAR_DIRTY_LOG API is unusable: clearing the final 64 pages
either requires the requested page range to go beyond memslot->npages,
or requires log->num_pages to be unaligned, and kvm_clear_dirty_log_protect
requires log->num_pages to be both in range and aligned.

To allow this case, allow log->num_pages not to be a multiple of 64 if
it ends exactly on the last page of the slot.

Reported-by: Peter Xu <peterx@redhat.com>
Fixes: 98938aa8ed ("KVM: validate userspace input in kvm_clear_dirty_log_protect()", 2019-01-02)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-04-30 21:22:15 +02:00
David S. Miller
a658a3f2ec Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2019-04-30

1) A lot of work to remove indirections from the xfrm code.
   From Florian Westphal.

2) Support ESP offload in combination with gso partial.
   From Boris Pismenny.

3) Remove some duplicated code from vti4.
   From Jeremy Sowden.

Please note that there is merge conflict

between commit:

8742dc86d0 ("xfrm4: Fix uninitialized memory read in _decode_session4")

from the ipsec tree and commit:

c53ac41e37 ("xfrm: remove decode_session indirection from afinfo_policy")

from the ipsec-next tree. The merge conflict will appear
when those trees get merged during the merge window.
The conflict can be solved as it is done in linux-next:

https://lkml.org/lkml/2019/4/25/1207

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-30 09:26:13 -04:00
Linus Torvalds
83a50840e7 seccomp use-after-free fix
- Add logic for making some seccomp flags exclusive (Tycho)
 - Update selftests for exclusivity testing (Kees)
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Merge tag 'seccomp-v5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp fixes from Kees Cook:
 "Syzbot found a use-after-free bug in seccomp due to flags that should
  not be allowed to be used together.

  Tycho fixed this, I updated the self-tests, and the syzkaller PoC has
  been running for several days without triggering KASan (before this
  fix, it would reproduce). These patches have also been in -next for
  almost a week, just to be sure.

   - Add logic for making some seccomp flags exclusive (Tycho)

   - Update selftests for exclusivity testing (Kees)"

* tag 'seccomp-v5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: Make NEW_LISTENER and TSYNC flags exclusive
  selftests/seccomp: Prepare for exclusive seccomp flags
2019-04-29 13:24:34 -07:00
David S. Miller
5f0d736e7f Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2019-04-28

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Introduce BPF socket local storage map so that BPF programs can store
   private data they associate with a socket (instead of e.g. separate hash
   table), from Martin.

2) Add support for bpftool to dump BTF types. This is done through a new
   `bpftool btf dump` sub-command, from Andrii.

3) Enable BPF-based flow dissector for skb-less eth_get_headlen() calls which
   was currently not supported since skb was used to lookup netns, from Stanislav.

4) Add an opt-in interface for tracepoints to expose a writable context
   for attached BPF programs, used here for NBD sockets, from Matt.

5) BPF xadd related arm64 JIT fixes and scalability improvements, from Daniel.

6) Change the skb->protocol for bpf_skb_adjust_room() helper in order to
   support tunnels such as sit. Add selftests as well, from Willem.

7) Various smaller misc fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-28 08:42:41 -04:00
Martin KaFai Lau
263d0b3533 bpf: Add ene-to-end test for bpf_sk_storage_* helpers
This patch rides on an existing BPF_PROG_TYPE_CGROUP_SKB test
(test_sock_fields.c) to do a TCP end-to-end test on the new
bpf_sk_storage_* helpers.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-27 09:07:05 -07:00
Martin KaFai Lau
51a0e301a5 bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps
This patch adds BPF_MAP_TYPE_SK_STORAGE test to test_maps.
The src file is rather long, so it is put into another dir map_tests/
and compile like the current prog_tests/ does.  Other existing
tests in test_maps can also be re-factored into map_tests/ in the
future.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-27 09:07:05 -07:00
Martin KaFai Lau
7a9bb9762d bpf: Add verifier tests for the bpf_sk_storage
This patch adds verifier tests for the bpf_sk_storage:
1. ARG_PTR_TO_MAP_VALUE_OR_NULL
2. Map and helper compatibility (e.g. disallow bpf_map_loookup_elem)

It also takes this chance to remove the unused struct btf_raw_data
and uses the BTF encoding macros from "test_btf.h".

Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-27 09:07:05 -07:00
Martin KaFai Lau
3f4d4c7410 bpf: Refactor BTF encoding macro to test_btf.h
Refactor common BTF encoding macros for other tests to use.
The libbpf may reuse some of them in the future  which requires
some more thoughts before publishing as a libbpf API.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-27 09:07:05 -07:00
Matt Mullins
e950e84336 selftests: bpf: test writable buffers in raw tps
This tests that:
  * a BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE cannot be attached if it
    uses either:
    * a variable offset to the tracepoint buffer, or
    * an offset beyond the size of the tracepoint buffer
  * a tracer can modify the buffer provided when attached to a writable
    tracepoint in bpf_prog_test_run

Signed-off-by: Matt Mullins <mmullins@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-26 19:04:19 -07:00
David S. Miller
ad759c9069 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2019-04-25

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) the bpf verifier fix to properly mark registers in all stack frames, from Paul.

2) preempt_enable_no_resched->preempt_enable fix, from Peter.

3) other misc fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 01:54:42 -04:00
Jiri Pirko
e05b2d141f netdevsim: move netdev creation/destruction to dev probe
Remove the existing way to create netdevsim over rtnetlink and move the
netdev creation/destruction to dev probe, so for every probed port,
a netdevsim-netdev instance is created.

Adjust selftests to work with new interface.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 01:52:03 -04:00
Jiri Pirko
ab1d0cc004 netdevsim: change debugfs tree topology
With the model where dev is represented by devlink and ports are
represented by devlink ports, make debugfs file names independent
on netdev names. Change the topology to the one illustrated
by the following example:

$ ls /sys/kernel/debug/netdevsim/
netdevsim1
$ ls /sys/kernel/debug/netdevsim/netdevsim1/
bpf_bind_accept  bpf_bind_verifier_delay  bpf_bound_progs  ports
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/
0  1
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/
bpf_map_accept  bpf_offloaded_id  bpf_tc_accept  bpf_tc_non_bound_accept  bpf_xdpdrv_accept  bpf_xdpoffload_accept  dev  ipsec
$ ls /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -l
lrwxrwxrwx 1 root root 0 Apr 13 15:58 /sys/kernel/debug/netdevsim/netdevsim1/ports/0/dev -> ../../../netdevsim1

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 01:52:02 -04:00
Jiri Pirko
d514f41e79 netdevsim: merge sdev into dev
As previously introduce dev which is mapped 1:1 to a bus device covers
the purpose of the original shared device, merge the sdev code into dev.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 01:52:02 -04:00
David S. Miller
8b44836583 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Two easy cases of overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-25 23:52:29 -04:00
Paul Chaignon
6dd7f14080 selftests/bpf: test cases for pkt/null checks in subprogs
The first test case, for pointer null checks, is equivalent to the
following pseudo-code.  It checks that the verifier does not complain on
line 6 and recognizes that ptr isn't null.

1: ptr = bpf_map_lookup_elem(map, &key);
2: ret = subprog(ptr) {
3:   return ptr != NULL;
4: }
5: if (ret)
6:   value = *ptr;

The second test case, for packet bound checks, is equivalent to the
following pseudo-code.  It checks that the verifier does not complain on
line 7 and recognizes that the packet is at least 1 byte long.

1: pkt_end = ctx.pkt_end;
2: ptr = ctx.pkt + 8;
3: ret = subprog(ptr, pkt_end) {
4:   return ptr <= pkt_end;
5: }
6: if (ret)
7:   value = *(u8 *)ctx.pkt;

Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-04-25 17:20:06 -07:00
Kees Cook
4ee0776760 selftests/seccomp: Prepare for exclusive seccomp flags
Some seccomp flags will become exclusive, so the selftest needs to
be adjusted to mask those out and test them individually for the "all
flags" tests.

Cc: stable@vger.kernel.org # v5.0+
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tycho Andersen <tycho@tycho.ws>
Acked-by: James Morris <jamorris@linux.microsoft.com>
2019-04-25 15:55:48 -07:00
Linus Torvalds
cd8dead0c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Just the usual assortment of small'ish fixes:

   1) Conntrack timeout is sometimes not initialized properly, from
      Alexander Potapenko.

   2) Add a reasonable range limit to tcp_min_rtt_wlen to avoid
      undefined behavior. From ZhangXiaoxu.

   3) des1 field of descriptor in stmmac driver is initialized with the
      wrong variable. From Yue Haibing.

   4) Increase mlxsw pci sw reset timeout a little bit more, from Ido
      Schimmel.

   5) Match IOT2000 stmmac devices more accurately, from Su Bao Cheng.

   6) Fallback refcount fix in TLS code, from Jakub Kicinski.

   7) Fix max MTU check when using XDP in mlx5, from Maxim Mikityanskiy.

   8) Fix recursive locking in team driver, from Hangbin Liu.

   9) Fix tls_set_device_offload_Rx() deadlock, from Jakub Kicinski.

  10) Don't use napi_alloc_frag() outside of softiq context of socionext
      driver, from Ilias Apalodimas.

  11) MAC address increment overflow in ncsi, from Tao Ren.

  12) Fix a regression in 8K/1M pool switching of RDS, from Zhu Yanjun.

  13) ipv4_link_failure has to validate the headers that are actually
      there because RAW sockets can pass in arbitrary garbage, from Eric
      Dumazet"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
  ipv4: add sanity checks in ipv4_link_failure()
  net/rose: fix unbound loop in rose_loopback_timer()
  rxrpc: fix race condition in rxrpc_input_packet()
  net: rds: exchange of 8K and 1M pool
  net: vrf: Fix operation not supported when set vrf mac
  net/ncsi: handle overflow when incrementing mac address
  net: socionext: replace napi_alloc_frag with the netdev variant on init
  net: atheros: fix spelling mistake "underun" -> "underrun"
  spi: ST ST95HF NFC: declare missing of table
  spi: Micrel eth switch: declare missing of table
  net: stmmac: move stmmac_check_ether_addr() to driver probe
  netfilter: fix nf_l4proto_log_invalid to log invalid packets
  netfilter: never get/set skb->tstamp
  netfilter: ebtables: CONFIG_COMPAT: drop a bogus WARN_ON
  Documentation: decnet: remove reference to CONFIG_DECNET_ROUTE_FWMARK
  dt-bindings: add an explanation for internal phy-mode
  net/tls: don't leak IV and record seq when offload fails
  net/tls: avoid potential deadlock in tls_set_device_offload_rx()
  selftests/net: correct the return value for run_afpackettests
  team: fix possible recursive locking when add slaves
  ...
2019-04-24 16:18:59 -07:00