Commit Graph

872829 Commits

Author SHA1 Message Date
Linus Torvalds 372bf6c1c8 NFS Client Bugfixes for Linux 5.4-rc6
Stable bugfixes:
 - Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
 
 Other fixes:
 - The TCP back channel mustn't disappear while requests are outstanding
 - The RDMA back channel mustn't disappear while requests are outstanding
 - Destroy the back channel when we destroy the host transport
 - Don't allow a cached open with a revoked delegation
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Merge tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client bugfixes from Anna Schumaker:
 "This contains two delegation fixes (with the RCU lock leak fix marked
  for stable), and three patches to fix destroying the the sunrpc back
  channel.

  Stable bugfixes:

   - Fix an RCU lock leak in nfs4_refresh_delegation_stateid()

  Other fixes:

   - The TCP back channel mustn't disappear while requests are
     outstanding

   - The RDMA back channel mustn't disappear while requests are
     outstanding

   - Destroy the back channel when we destroy the host transport

   - Don't allow a cached open with a revoked delegation"

* tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
  NFSv4: Don't allow a cached open with a revoked delegation
  SUNRPC: Destroy the back channel when we destroy the host transport
  SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding
  SUNRPC: The TCP back channel mustn't disappear while requests are outstanding
2019-11-01 17:37:44 -07:00
Linus Torvalds 0821de2896 for-linus-20191101
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Merge tag 'for-linus-20191101' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Two small nvme fixes, one is a fabrics connection fix, the other one
   a cleanup made possible by that fix (Anton, via Keith)

 - Fix requeue handling in umb ubd (Anton)

 - Fix spin_lock_irq() nesting in blk-iocost (Dan)

 - Three small io_uring fixes:
     - Install io_uring fd after done with ctx (me)
     - Clear ->result before every poll issue (me)
     - Fix leak of shadow request on error (Pavel)

* tag 'for-linus-20191101' of git://git.kernel.dk/linux-block:
  iocost: don't nest spin_lock_irq in ioc_weight_write()
  io_uring: ensure we clear io_kiocb->result before each issue
  um-ubd: Entrust re-queue to the upper layers
  nvme-multipath: remove unused groups_only mode in ana log
  nvme-multipath: fix possible io hang after ctrl reconnect
  io_uring: don't touch ctx in setup after ring fd install
  io_uring: Fix leaked shadow_req
2019-11-01 17:33:12 -07:00
Linus Torvalds e5897c7d2e RISC-V updates for v5.4-rc6
One fix for PCIe users:
 
 - Fix legacy PCI I/O port access emulation
 
 One set of cleanups:
 
 - Resolve most of the warnings generated by sparse across arch/riscv.
   No functional changes
 
 And one MAINTAINERS update:
 
 - Update Palmer's E-mail address
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Merge tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "One fix for PCIe users:

   - Fix legacy PCI I/O port access emulation

  One set of cleanups:

   - Resolve most of the warnings generated by sparse across arch/riscv.
     No functional changes

  And one MAINTAINERS update:

   - Update Palmer's E-mail address"

* tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  MAINTAINERS: Change to my personal email address
  RISC-V: Add PCIe I/O BAR memory mapping
  riscv: for C functions called only from assembly, mark with __visible
  riscv: fp: add missing __user pointer annotations
  riscv: add missing header file includes
  riscv: mark some code and data as file-static
  riscv: init: merge split string literals in preprocessor directive
  riscv: add prototypes for assembly language functions from head.S
2019-11-01 17:20:53 -07:00
Linus Torvalds 31408fbe33 Merge branch 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fix from Helge Deller:
 "Fix a parisc kernel crash with ftrace functions when compiled without
  frame pointers"

* 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix frame pointer in ftrace_regs_caller()
2019-11-01 15:16:25 -07:00
David S. Miller aeb1b85c34 Merge branch 'fix-BPF-offload-related-bugs'
Jakub Kicinski says:

====================
fix BPF offload related bugs

test_offload.py catches some recently added bugs.

First of a bug in test_offload.py itself after recent changes
to netdevsim is fixed.

Second patch fixes a bug in cls_bpf, and last one addresses
a problem with the recently added XDP installation optimization.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:16:01 -07:00
Jakub Kicinski aefc3e723a net: fix installing orphaned programs
When netdevice with offloaded BPF programs is destroyed
the programs are orphaned and removed from the program
IDA - their IDs get released (the programs may remain
accessible via existing open file descriptors and pinned
files). After IDs are released they are set to 0.

This confuses dev_change_xdp_fd() because it compares
the __dev_xdp_query() result where 0 means no program
with prog->aux->id where 0 means orphaned.

dev_change_xdp_fd() would have incorrectly returned success
even though it had not installed the program.

Since drivers already catch this case via bpf_offload_dev_match()
let them handle this case. The error message drivers produce in
this case ("program loaded for a different device") is in fact
correct as the orphaned program must had to be loaded for a
different device.

Fixes: c14a9f633d ("net: Don't call XDP_SETUP_PROG when nothing is changed")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:16:01 -07:00
Jakub Kicinski 41aa29a58b net: cls_bpf: fix NULL deref on offload filter removal
Commit 4011921137 ("net: sched: refactor block offloads counter
usage") missed the fact that either new prog or old prog may be
NULL.

Fixes: 4011921137 ("net: sched: refactor block offloads counter usage")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:16:01 -07:00
Jakub Kicinski 8101e06941 selftests: bpf: Skip write only files in debugfs
DebugFS for netdevsim now contains some "action trigger" files
which are write only. Don't try to capture the contents of those.

Note that we can't use os.access() because the script requires
root.

Fixes: 4418f862d6 ("netdevsim: implement support for devlink region and snapshots")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:16:01 -07:00
Wei Wang d64479a3e3 selftests: net: reuseport_dualstack: fix uninitalized parameter
This test reports EINVAL for getsockopt(SOL_SOCKET, SO_DOMAIN)
occasionally due to the uninitialized length parameter.
Initialize it to fix this, and also use int for "test_family" to comply
with the API standard.

Fixes: d6a61f80b8 ("soreuseport: test mixed v4/v6 sockets")
Reported-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Cc: Craig Gallek <cgallek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:11:02 -07:00
Heiner Kallweit 62bdc8fd1c r8169: fix wrong PHY ID issue with RTL8168dp
As reported in [0] at least one RTL8168dp version has problems
establishing a link. This chip version has an integrated RTL8211b PHY,
however the chip seems to report a wrong PHY ID, resulting in a wrong
PHY driver (for Generic Realtek PHY) being loaded.
Work around this issue by adding a hook to r8168dp_2_mdio_read()
for returning the correct PHY ID.

[0] https://bbs.archlinux.org/viewtopic.php?id=246508

Fixes: 242cd9b586 ("r8169: use phy_resume/phy_suspend")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:09:40 -07:00
Florian Fainelli 5fc0f21246 net: dsa: bcm_sf2: Fix IMP setup for port different than 8
Since it became possible for the DSA core to use a CPU port different
than 8, our bcm_sf2_imp_setup() function was broken because it assumes
that registers are applicable to port 8. In particular, the port's MAC
is going to stay disabled, so make sure we clear the RX_DIS and TX_DIS
bits if we are not configured for port 8.

Fixes: 9f91484f6f ("net: dsa: make "label" property optional for dsa2")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:08:21 -07:00
Florian Fainelli 9d68db5092 net: phylink: Fix phylink_dbg() macro
The phylink_dbg() macro does not follow dynamic debug or defined(DEBUG)
and as a result, it spams the kernel log since a PR_DEBUG level is
currently used. Fix it to be defined appropriately whether
CONFIG_DYNAMIC_DEBUG or defined(DEBUG) are set.

Fixes: 17091180b1 ("net: phylink: Add phylink_{printk, err, warn, info, dbg} macros")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:06:46 -07:00
Yangchun Fu 9cfeeb576d gve: Fixes DMA synchronization.
Synces the DMA buffer properly in order for CPU and device to see
the most up-to-data data.

Signed-off-by: Yangchun Fu <yangchun@google.com>
Reviewed-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 15:00:05 -07:00
Eric Dumazet a904a0693c inet: stop leaking jiffies on the wire
Historically linux tried to stick to RFC 791, 1122, 2003
for IPv4 ID field generation.

RFC 6864 made clear that no matter how hard we try,
we can not ensure unicity of IP ID within maximum
lifetime for all datagrams with a given source
address/destination address/protocol tuple.

Linux uses a per socket inet generator (inet_id), initialized
at connection startup with a XOR of 'jiffies' and other
fields that appear clear on the wire.

Thiemo Nagel pointed that this strategy is a privacy
concern as this provides 16 bits of entropy to fingerprint
devices.

Let's switch to a random starting point, this is just as
good as far as RFC 6864 is concerned and does not leak
anything critical.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Thiemo Nagel <tnagel@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 14:57:52 -07:00
David S. Miller c8c2cd8102 Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2019-11-01

This series contains updates to e1000, igb, igc, ixgbe, i40e and driver
documentation.

Lyude Paul fixes an issue where a fatal read error occurs when the
device is unplugged from the machine.  So change the read error into a
warn while the device is still present.

Manfred Rudigier found that the i350 device was not apart of the "Media
Auto Sense" feature, yet the device supports it.  So add the missing
i350 device to the check and fix an issue where the media auto sense
would flip/flop when no cable was connected to the port causing spurious
kernel log messages.

I fixed an issue where the fix to resolve receive buffer starvation was
applied in more than one place in the driver, one being the incorrect
location in the i40e driver.

Wenwen Wang fixes a potential memory leak in e1000 where allocated
memory is not properly cleaned up in one of the error paths.

Jonathan Neuschäfer cleans up the driver documentation to be consistent
and remove the footnote reference, since the footnote no longer exists in
the documentation.

Igor Pylypiv cleans up a duplicate clearing of a bit, no need to clear
it twice.

v2: Fixed alignment issue in patch 3 of the series based on community
    feedback.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 14:50:27 -07:00
Igor Pylypiv 451fe015b2 ixgbe: Remove duplicate clear_bit() call
__IXGBE_RX_BUILD_SKB_ENABLED bit is already cleared.

Signed-off-by: Igor Pylypiv <igor.pylypiv@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-01 13:20:50 -07:00
Jonathan Neuschäfer 17df5ae1b3 Documentation: networking: device drivers: Remove stray asterisks
These asterisks were once references to a line that said:
  "* Other names and brands may be claimed as the property of others."
But now, they serve no purpose; they can only irritate the reader.

Fixes: de3edab427 ("e1000: update README for e1000")
Fixes: a3fb65680f ("e100.txt: Cleanup license info in kernel doc")
Fixes: da8c01c450 ("e1000e.txt: Add e1000e documentation")
Fixes: f12a84a9f6 ("Documentation: fm10k: Add kernel documentation")
Fixes: b55c52b193 ("igb.txt: Add igb documentation")
Fixes: c4e9b56e24 ("igbvf.txt: Add igbvf Documentation")
Fixes: d7064f4c19 ("Documentation/networking/: Update Intel wired LAN driver documentation")
Fixes: c4b8c01112 ("ixgbevf.txt: Update ixgbevf documentation")
Fixes: 1e06edcc2f ("Documentation: i40e: Prepare documentation for RST conversion")
Fixes: 105bf2fe6b ("i40evf: add driver to kernel build system")
Fixes: 1fae869bcf ("Documentation: ice: Prepare documentation for RST conversion")
Fixes: df69ba4321 ("ionic: Add basic framework for IONIC Network device driver")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-01 13:20:43 -07:00
Wenwen Wang 8472ba6215 e1000: fix memory leaks
In e1000_set_ringparam(), 'tx_old' and 'rx_old' are not deallocated if
e1000_up() fails, leading to memory leaks. Refactor the code to fix this
issue.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-01 13:20:33 -07:00
Jeff Kirsher 2c19e395e0 i40e: Fix receive buffer starvation for AF_XDP
Magnus's fix to resolve a potential receive buffer starvation for AF_XDP
got applied to both the i40e_xsk_umem_enable/disable() functions, when it
should have only been applied to the "enable".  So clean up the undesired
code in the disable function.

CC: Magnus Karlsson <magnus.karlsson@intel.com>
Fixes: 1f459bdc20 ("i40e: fix potential RX buffer starvation for AF_XDP")
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
2019-11-01 13:20:18 -07:00
Manfred Rudigier 8d5cfd7f76 igb: Fix constant media auto sense switching when no cable is connected
At least on the i350 there is an annoying behavior that is maybe also
present on 82580 devices, but was probably not noticed yet as MAS is not
widely used.

If no cable is connected on both fiber/copper ports the media auto sense
code will constantly swap between them as part of the watchdog task and
produce many unnecessary kernel log messages.

The swap code responsible for this behavior (switching to fiber) should
not be executed if the current media type is copper and there is no signal
detected on the fiber port. In this case we can safely wait until the
AUTOSENSE_EN bit is cleared.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-11-01 13:20:00 -07:00
Linus Torvalds 0dbe6cb8f7 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Fix two scheduler topology bugs/oversights on Juno r0 2+4 big.LITTLE
  systems"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/topology: Allow sched_asym_cpucapacity to be disabled
  sched/topology: Don't try to build empty sched domains
2019-11-01 11:49:54 -07:00
Linus Torvalds 355f83c1d0 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc fixes: an ABI fix for a reserved field, AMD IBS fixes, an Intel
  uncore PMU driver fix and a header typo fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/headers: Fix spelling s/EACCESS/EACCES/, s/privilidge/privilege/
  perf/x86/uncore: Fix event group support
  perf/x86/amd/ibs: Handle erratum #420 only on the affected CPU family (10h)
  perf/x86/amd/ibs: Fix reading of the IBS OpData register and thus precise RIP validity
  perf/core: Start rejecting the syscall with attr.__reserved_2 set
2019-11-01 11:40:47 -07:00
Linus Torvalds b2a18c25c7 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "Various fixes all over the map: prevent boot crashes on HyperV,
  classify UEFI randomness as bootloader randomness, fix EFI boot for
  the Raspberry Pi2, fix efi_test permissions, etc"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
  x86, efi: Never relocate kernel below lowest acceptable address
  efi: libstub/arm: Account for firmware reserved memory at the base of RAM
  efi/random: Treat EFI_RNG_PROTOCOL output as bootloader randomness
  efi/tpm: Return -EINVAL when determining tpm final events log size fails
  efi: Make CONFIG_EFI_RCI2_TABLE selectable on x86 only
2019-11-01 11:32:50 -07:00
David S. Miller 33e4980532 wireless-drivers fixes for 5.4
Third set of fixes for 5.4. Most of them are for iwlwifi but important
 fixes also for rtlwifi and mt76, the overflow fix for rtlwifi being
 most important.
 
 iwlwifi
 
 * fix merge damage on earlier patch
 
 * various fixes to device id handling
 
 * fix scan config command handling which caused firmware asserts
 
 rtlwifi
 
 * fix overflow on P2P IE handling
 
 * don't deliver too small frames to mac80211
 
 mt76
 
 * disable PCIE_ASPM
 
 * fix buffer DMA unmap on certain cases
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Merge tag 'wireless-drivers-2019-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 5.4

Third set of fixes for 5.4. Most of them are for iwlwifi but important
fixes also for rtlwifi and mt76, the overflow fix for rtlwifi being
most important.

iwlwifi

* fix merge damage on earlier patch

* various fixes to device id handling

* fix scan config command handling which caused firmware asserts

rtlwifi

* fix overflow on P2P IE handling

* don't deliver too small frames to mac80211

mt76

* disable PCIE_ASPM

* fix buffer DMA unmap on certain cases
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 10:36:46 -07:00
Chuhong Yuan 4202e219ed net: ethernet: arc: add the missed clk_disable_unprepare
The remove misses to disable and unprepare priv->macclk like what is done
when probe fails.
Add the missed call in remove.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-01 10:25:39 -07:00
Linus Torvalds d540c398db arm64 fixes for -rc6
- Enable CPU errata workarounds for Broadcom Brahma-B53
 
 - Enable CPU errata workarounds for Qualcomm Hydra/Kryo CPUs
 
 - Fix initial dirty status of writeable, shared mappings
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "These are almost exclusively related to CPU errata in CPUs from
  Broadcom and Qualcomm where the workarounds were either not being
  enabled when they should have been or enabled when they shouldn't have
  been.

  The only "interesting" fix is ensuring that writeable, shared mappings
  are initially mapped as clean since we inadvertently broke the logic
  back in v4.14 and then noticed the problem via code inspection the
  other day.

  The only critical issue we have outstanding is a sporadic NULL
  dereference in the scheduler, which doesn't appear to be
  arm64-specific and PeterZ is tearing his hair out over it at the
  moment.

  Summary:

   - Enable CPU errata workarounds for Broadcom Brahma-B53

   - Enable CPU errata workarounds for Qualcomm Hydra/Kryo CPUs

   - Fix initial dirty status of writeable, shared mappings"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core
  arm64: Brahma-B53 is SSB and spectre v2 safe
  arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core
  arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo
  arm64: cpufeature: Enable Qualcomm Falkor/Kryo errata 1003
  arm64: Ensure VM_WRITE|VM_SHARED ptes are clean by default
2019-11-01 10:03:46 -07:00
Linus Torvalds b88866b60d Generic: fix memory leak failure to create VM.
x86: fix MMU corner case with AMD nested paging disabled.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "generic:
   - fix memory leak on failure to create VM

  x86:
   - fix MMU corner case with AMD nested paging disabled"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
  kvm: call kvm_arch_destroy_vm if vm creation fails
  kvm: Allocate memslots and buses before calling kvm_arch_init_vm
2019-11-01 09:54:38 -07:00
Linus Torvalds 1461624491 drm fixes for 5.4-rc6
amdgpu:
 - clang alignment fixes
 - Updated golden settings
 - navi: gpuvm, sdma and display fixes
 - Freesync fix
 - Gamma fix for DCN
 - DP dongle detection fix
 - vega10: Fix for undervolting
 
 radeon:
 - reenable kexec fix for ppc
 
 scheduler:
 - set an error if hw job failed
 
 i915:
 - fix PCH reference clock for HSW/BDW
 - TGL display PLL doc fix
 
 panfrost:
 - warning fix
 - runtime pm fix
 - bad pointer dereference fix
 
 v3d:
 - memleak fix
 
 etnaviv:
 - memory corruption fix
 - deadlock fix
 - reintroduce lost debug message
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Merge tag 'drm-fixes-2019-11-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "This is the regular drm fixes pull request for 5.4-rc6. It's a bit
  larger than I'd like but then last week was quieter than usual.

  The main fixes are amdgpu, and the two bigger area are navi fixes
  which are the newest GPU range so still getting actively fixed up, but
  also a bunch of clang stack alignment fixes (as amdgpu uses double in
  some places).

  Otherwise it's all fairly run of the mill fixes, i915, panfrost,
  etnaviv, v3d and radeon, along with a core scheduler fix.

  Summary:

  amdgpu:
   - clang alignment fixes
   - Updated golden settings
   - navi: gpuvm, sdma and display fixes
   - Freesync fix
   - Gamma fix for DCN
   - DP dongle detection fix
   - vega10: Fix for undervolting

  radeon:
   - reenable kexec fix for ppc

  scheduler:
   - set an error if hw job failed

  i915:
   - fix PCH reference clock for HSW/BDW
   - TGL display PLL doc fix

  panfrost:
   - warning fix
   - runtime pm fix
   - bad pointer dereference fix

  v3d:
   - memleak fix

  etnaviv:
   - memory corruption fix
   - deadlock fix
   - reintroduce lost debug message"

* tag 'drm-fixes-2019-11-01' of git://anongit.freedesktop.org/drm/drm: (29 commits)
  drm/amdgpu: enable -msse2 for GCC 7.1+ users
  drm/amdgpu: fix stack alignment ABI mismatch for GCC 7.1+
  drm/amdgpu: fix stack alignment ABI mismatch for Clang
  drm/radeon: Fix EEH during kexec
  drm/amdgpu/gmc10: properly set BANK_SELECT and FRAGMENT_SIZE
  drm/amdgpu/powerplay/vega10: allow undervolting in p7
  dc.c:use kzalloc without test
  drm/amd/display: setting the DIG_MODE to the correct value.
  drm/amd/display: Passive DP->HDMI dongle detection fix
  drm/amd/display: add 50us buffer as WA for pstate switch in active
  drm/amd/display: Allow inverted gamma
  drm/amd/display: do not synchronize "drr" displays
  drm/amdgpu: If amdgpu_ib_schedule fails return back the error.
  drm/sched: Set error to s_fence if HW job submission failed.
  drm/amdgpu/gfx10: update gfx golden settings for navi12
  drm/amdgpu/gfx10: update gfx golden settings for navi14
  drm/amdgpu/gfx10: update gfx golden settings
  drm/amd/display: Change Navi14's DWB flag to 1
  drm/amdgpu/sdma5: do not execute 0-sized IBs (v2)
  drm/amdgpu: Fix SDMA hang when performing VKexample test
  ...
2019-11-01 09:41:08 -07:00
Linus Torvalds 65a5bf1c79 Power management fix for 5.4-rc6
Fix a recently introduced (mostly theoretical) issue that the requests
 to confine the maximum CPU frequency coming from the platform firmware
 may not be taken into account if multiple CPUs are covered by one
 cpufreq policy on a system with ACPI.
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Merge tag 'pm-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a recently introduced (mostly theoretical) issue that the requests
  to confine the maximum CPU frequency coming from the platform firmware
  may not be taken into account if multiple CPUs are covered by one
  cpufreq policy on a system with ACPI"

* tag 'pm-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: processor: Add QoS requests for all CPUs
2019-11-01 09:30:48 -07:00
Linus Torvalds 4252a1a9b0 RDMA subsystem updates for 5.4-rc
A number of bug fixes and a regression fix:
 
 - Various issues from static analysis in hfi1, uverbs, hns, and cxgb4
 
 - Fix for deadlock in a case when the new auto RDMA module loading is
   used
 
 - Missing _irq notation in a prior -rc patch found by lockdep
 
 - Fix a locking and lifetime issue in siw
 
 - Minor functional bug fixes in cxgb4, mlx5, qedr
 
 - Fix a regression where vlan interfaces no longer worked with RDMA CM in
   some cases
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "A number of bug fixes and a regression fix:

   - Various issues from static analysis in hfi1, uverbs, hns, and cxgb4

   - Fix for deadlock in a case when the new auto RDMA module loading is
     used

   - Missing _irq notation in a prior -rc patch found by lockdep

   - Fix a locking and lifetime issue in siw

   - Minor functional bug fixes in cxgb4, mlx5, qedr

   - Fix a regression where vlan interfaces no longer worked with RDMA
     CM in some cases"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Prevent memory leaks of eq->buf_list
  RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
  RDMA/mlx5: Use irq xarray locking for mkey_table
  IB/core: Avoid deadlock during netlink message handling
  RDMA/nldev: Skip counter if port doesn't match
  RDMA/uverbs: Prevent potential underflow
  IB/core: Use rdma_read_gid_l2_fields to compare GID L2 fields
  RDMA/qedr: Fix reported firmware version
  RDMA/siw: free siw_base_qp in kref release routine
  RDMA/iwcm: move iw_rem_ref() calls out of spinlock
  iw_cxgb4: fix ECN check on the passive accept
  IB/hfi1: Use a common pad buffer for 9B and 16B packets
  IB/hfi1: Avoid excessive retry for TID RDMA READ request
  RDMA/mlx5: Clear old rate limit when closing QP
2019-11-01 09:21:48 -07:00
Linus Torvalds 2858598006 sound fixes for 5.4-rc6
A copule of regression fixes and a fix for mutex deadlock at
 hog-unplug, as well as other device-specific fixes:
 
 - A commit for avoiding the spurious unsolicited interrupt on HD-
   audio bus caused a stall at shutdown, so it's reverted now.
 
 - The recent support of AMD/Nvidia audio component binding caused
   a mutex deadlock; fixed by splitting to another mutex
 
 - The device hot-unplug and the ALSA timer close combo may lead to
   another mutex deadlock; fixed by moving put_device() calls
 
 - Usual device-specific small quirks for HD- and USB-audio drivers
 
 - An old error check fix in FireWire driver
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Merge tag 'sound-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A couple of regression fixes and a fix for mutex deadlock at
  hog-unplug, as well as other device-specific fixes:

   - A commit to avoid the spurious unsolicited interrupt on HD-audio
     bus caused a stall at shutdown, so it's reverted now.

   - The recent support of AMD/Nvidia audio component binding caused a
     mutex deadlock; fixed by splitting to another mutex

   - The device hot-unplug and the ALSA timer close combo may lead to
     another mutex deadlock; fixed by moving put_device() calls

   - Usual device-specific small quirks for HD- and USB-audio drivers

   - An old error check fix in FireWire driver"

* tag 'sound-5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: timer: Fix mutex deadlock at releasing card
  ALSA: hda - Fix mutex deadlock in HDMI codec driver
  Revert "ALSA: hda: Flush interrupts on disabling"
  ALSA: bebob: Fix prototype of helper function to return negative value
  ALSA: hda/realtek - Fix 2 front mics of codec 0x623
  ALSA: hda/realtek - Add support for ALC623
  ALSA: usb-audio: Add DSD support for Gustard U16/X26 USB Interface
2019-11-01 09:18:00 -07:00
Trond Myklebust 79cc55422c NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid()
A typo in nfs4_refresh_delegation_stateid() means we're leaking an
RCU lock, and always returning a value of 'false'. As the function
description states, we were always supposed to return 'true' if a
matching delegation was found.

Fixes: 12f275cdd1 ("NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID.")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-11-01 11:03:56 -04:00
Trond Myklebust be3df3dd4c NFSv4: Don't allow a cached open with a revoked delegation
If the delegation is marked as being revoked, we must not use it
for cached opens.

Fixes: 869f9dfa4d ("NFSv4: Fix races between nfs_remove_bad_delegation() and delegation return")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-11-01 10:59:26 -04:00
Florian Fainelli 1cf45b8fdb arm64: apply ARM64_ERRATUM_843419 workaround for Brahma-B53 core
The Broadcom Brahma-B53 core is susceptible to the issue described by
ARM64_ERRATUM_843419 so this commit enables the workaround to be applied
when executing on that core.

Since there are now multiple entries to match, we must convert the
existing ARM64_ERRATUM_843419 into an erratum list and use
cpucap_multi_entry_cap_matches to match our entries.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-11-01 10:47:37 +00:00
Florian Fainelli e059770cb1 arm64: Brahma-B53 is SSB and spectre v2 safe
Add the Brahma-B53 CPU (all versions) to the whitelists of CPUs for the
SSB and spectre v2 mitigations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-11-01 10:47:37 +00:00
Doug Berger bfc97f9f19 arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core
The Broadcom Brahma-B53 core is susceptible to the issue described by
ARM64_ERRATUM_845719 so this commit enables the workaround to be applied
when executing on that core.

Since there are now multiple entries to match, we must convert the
existing ARM64_ERRATUM_845719 into an erratum list.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
2019-11-01 10:47:37 +00:00
Dave Airlie e54de91a24 Merge tag 'drm-fixes-5.4-2019-10-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.4-2019-10-30:

amdgpu:
- clang fixes
- Updated golden settings
- GPUVM fixes for navi
- Navi sdma fix
- Navi display fixes
- Freesync fix
- Gamma fix for DCN
- DP dongle detection fix
- Fix for undervolting on vega10

radeon:
- enable kexec fix for PPC

scheduler:
- set an error on fence if hw job failed

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030162339.44366-1-alexander.deucher@amd.com
2019-11-01 11:27:39 +10:00
Dave Airlie 2cac8c4480 - Fix PCH reference clock for FDI on HSW/BDW which was causing users blank screen
- Small documentation fix for TGL display PLLs
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Merge tag 'drm-intel-fixes-2019-10-31' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix PCH reference clock for FDI on HSW/BDW which was causing users blank screen
- Small documentation fix for TGL display PLLs

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031171209.GA6586@intel.com
2019-11-01 11:14:43 +10:00
Dave Airlie ec26530c8c - three fixes for panfrost, one to silence a warning, one to fix
runtime_pm and one to prevent bogus pointer dereferences
  - one fix for a memleak in v3d
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Merge tag 'drm-misc-fixes-2019-10-30-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 - three fixes for panfrost, one to silence a warning, one to fix
   runtime_pm and one to prevent bogus pointer dereferences
 - one fix for a memleak in v3d

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030182207.evrscl7lnv42u5zu@hendrix
2019-11-01 11:10:08 +10:00
Dave Airlie 6f966213fe Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes
One memory corruption fix in the MMUv2 GPU coredump code, a deadlock
fix also in the coredump code and reintroduction of a helpful message,
which got dropped by accident in this cycle.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/b0d640267662e3ce5e0089d0afedc1baba55058d.camel@pengutronix.de
2019-11-01 11:09:05 +10:00
Manfred Rudigier fb2308ba16 igb: Enable media autosense for the i350.
This patch enables the hardware feature "Media Auto Sense" also on the
i350. It works in the same way as on the 82850 devices. Hardware designs
using dual PHYs (fiber/copper) can enable this feature by setting the MAS
enable bits in the NVM_COMPAT register (0x03) in the EEPROM.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-31 14:03:16 -07:00
Lyude Paul 94bc1e522b igb/igc: Don't warn on fatal read failures when the device is removed
Fatal read errors are worth warning about, unless of course the device
was just unplugged from the machine - something that's a rather normal
occurrence when the igb/igc adapter is located on a Thunderbolt dock. So,
let's only WARN() if there's a fatal read error while the device is
still present.

This fixes the following WARN splat that's been appearing whenever I
unplug my Caldigit TS3 Thunderbolt dock from my laptop:

  igb 0000:09:00.0 enp9s0: PCIe link lost
  ------------[ cut here ]------------
  igb: Failed to read reg 0x18!
  WARNING: CPU: 7 PID: 516 at
  drivers/net/ethernet/intel/igb/igb_main.c:756 igb_rd32+0x57/0x6a [igb]
  Modules linked in: igb dca thunderbolt fuse vfat fat elan_i2c mei_wdt
  mei_hdcp i915 wmi_bmof intel_wmi_thunderbolt iTCO_wdt
  iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp joydev
  coretemp crct10dif_pclmul crc32_pclmul i2c_algo_bit ghash_clmulni_intel
  intel_cstate drm_kms_helper intel_uncore syscopyarea sysfillrect
  sysimgblt fb_sys_fops intel_rapl_perf intel_xhci_usb_role_switch mei_me
  drm roles idma64 i2c_i801 ucsi_acpi typec_ucsi mei intel_lpss_pci
  processor_thermal_device typec intel_pch_thermal intel_soc_dts_iosf
  intel_lpss int3403_thermal thinkpad_acpi wmi int340x_thermal_zone
  ledtrig_audio int3400_thermal acpi_thermal_rel acpi_pad video
  pcc_cpufreq ip_tables serio_raw nvme nvme_core crc32c_intel uas
  usb_storage e1000e i2c_dev
  CPU: 7 PID: 516 Comm: kworker/u16:3 Not tainted 5.2.0-rc1Lyude-Test+ #14
  Hardware name: LENOVO 20L8S2N800/20L8S2N800, BIOS N22ET35W (1.12 ) 04/09/2018
  Workqueue: kacpi_hotplug acpi_hotplug_work_fn
  RIP: 0010:igb_rd32+0x57/0x6a [igb]
  Code: 87 b8 fc ff ff 48 c7 47 08 00 00 00 00 48 c7 c6 33 42 9b c0 4c 89
  c7 e8 47 45 cd dc 89 ee 48 c7 c7 43 42 9b c0 e8 c1 94 71 dc <0f> 0b eb
  08 8b 00 ff c0 75 b0 eb c8 44 89 e0 5d 41 5c c3 0f 1f 44
  RSP: 0018:ffffba5801cf7c48 EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff9e7956608840 RCX: 0000000000000007
  RDX: 0000000000000000 RSI: ffffba5801cf7b24 RDI: ffff9e795e3d6a00
  RBP: 0000000000000018 R08: 000000009dec4a01 R09: ffffffff9e61018f
  R10: 0000000000000000 R11: ffffba5801cf7ae5 R12: 00000000ffffffff
  R13: ffff9e7956608840 R14: ffff9e795a6f10b0 R15: 0000000000000000
  FS:  0000000000000000(0000) GS:ffff9e795e3c0000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000564317bc4088 CR3: 000000010e00a006 CR4: 00000000003606e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
   igb_release_hw_control+0x1a/0x30 [igb]
   igb_remove+0xc5/0x14b [igb]
   pci_device_remove+0x3b/0x93
   device_release_driver_internal+0xd7/0x17e
   pci_stop_bus_device+0x36/0x75
   pci_stop_bus_device+0x66/0x75
   pci_stop_bus_device+0x66/0x75
   pci_stop_and_remove_bus_device+0xf/0x19
   trim_stale_devices+0xc5/0x13a
   ? __pm_runtime_resume+0x6e/0x7b
   trim_stale_devices+0x103/0x13a
   ? __pm_runtime_resume+0x6e/0x7b
   trim_stale_devices+0x103/0x13a
   acpiphp_check_bridge+0xd8/0xf5
   acpiphp_hotplug_notify+0xf7/0x14b
   ? acpiphp_check_bridge+0xf5/0xf5
   acpi_device_hotplug+0x357/0x3b5
   acpi_hotplug_work_fn+0x1a/0x23
   process_one_work+0x1a7/0x296
   worker_thread+0x1a8/0x24c
   ? process_scheduled_works+0x2c/0x2c
   kthread+0xe9/0xee
   ? kthread_destroy_worker+0x41/0x41
   ret_from_fork+0x35/0x40
  ---[ end trace 252bf10352c63d22 ]---

Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: 47e16692b2 ("igb/igc: warn when fatal read failure happens")
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Acked-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2019-10-31 14:03:16 -07:00
Eric Dumazet 623d0c2db0 tcp: increase tcp_max_syn_backlog max value
tcp_max_syn_backlog default value depends on memory size
and TCP ehash size. Before this patch, the max value
was 2048 [1], which is considered too small nowadays.

Increase it to 4096 to match the recent SOMAXCONN change.

[1] This is with TCP ehash size being capped to 524288 buckets.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Yue Cao <ycao009@ucr.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 14:02:01 -07:00
Eric Dumazet 19f92a030c net: increase SOMAXCONN to 4096
SOMAXCONN is /proc/sys/net/core/somaxconn default value.

It has been defined as 128 more than 20 years ago.

Since it caps the listen() backlog values, the very small value has
caused numerous problems over the years, and many people had
to raise it on their hosts after beeing hit by problems.

Google has been using 1024 for at least 15 years, and we increased
this to 4096 after TCP listener rework has been completed, more than
4 years ago. We got no complain of this change breaking any
legacy application.

Many applications indeed setup a TCP listener with listen(fd, -1);
meaning they let the system select the backlog.

Raising SOMAXCONN lowers chance of the port being unavailable under
even small SYNFLOOD attack, and reduces possibilities of side channel
vulnerabilities.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Yue Cao <ycao009@ucr.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 14:01:40 -07:00
Rafael J. Wysocki e82b745790 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  ACPI: processor: Add QoS requests for all CPUs
2019-10-31 21:41:37 +01:00
Ido Schimmel 6d6f0383b6 netdevsim: Fix use-after-free during device dismantle
Commit da58f90f11 ("netdevsim: Add devlink-trap support") added
delayed work to netdevsim that periodically iterates over the registered
netdevsim ports and reports various packet traps via devlink.

While the delayed work takes the 'port_list_lock' mutex to protect
against concurrent addition / deletion of ports, during device creation
/ dismantle ports are added / deleted without this lock, which can
result in a use-after-free [1].

Fix this by making sure that the ports list is always modified under the
lock.

[1]
[   59.205543] ==================================================================
[   59.207748] BUG: KASAN: use-after-free in nsim_dev_trap_report_work+0xa67/0xad0
[   59.210247] Read of size 8 at addr ffff8883cbdd3398 by task kworker/3:1/38
[   59.212584]
[   59.213148] CPU: 3 PID: 38 Comm: kworker/3:1 Not tainted 5.4.0-rc3-custom-16119-ge6abb5f0261e #2013
[   59.215896] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20180724_192412-buildhw-07.phx2.fedoraproject.org-1.fc29 04/01/2014
[   59.218384] Workqueue: events nsim_dev_trap_report_work
[   59.219428] Call Trace:
[   59.219924]  dump_stack+0xa9/0x10e
[   59.220623]  print_address_description.constprop.4+0x21/0x340
[   59.221976]  ? vprintk_func+0x66/0x240
[   59.222752]  __kasan_report.cold.8+0x78/0x91
[   59.223602]  ? nsim_dev_trap_report_work+0xa67/0xad0
[   59.224603]  kasan_report+0xe/0x20
[   59.225296]  nsim_dev_trap_report_work+0xa67/0xad0
[   59.226435]  ? rcu_read_lock_sched_held+0xaf/0xe0
[   59.227512]  ? trace_event_raw_event_rcu_quiescent_state_report+0x360/0x360
[   59.228851]  process_one_work+0x98f/0x1760
[   59.229684]  ? pwq_dec_nr_in_flight+0x330/0x330
[   59.230656]  worker_thread+0x91/0xc40
[   59.231587]  ? process_one_work+0x1760/0x1760
[   59.232451]  kthread+0x34a/0x410
[   59.233104]  ? __kthread_queue_delayed_work+0x240/0x240
[   59.234141]  ret_from_fork+0x3a/0x50
[   59.234982]
[   59.235371] Allocated by task 187:
[   59.236189]  save_stack+0x19/0x80
[   59.236853]  __kasan_kmalloc.constprop.5+0xc1/0xd0
[   59.237822]  kmem_cache_alloc_trace+0x14c/0x380
[   59.238769]  __nsim_dev_port_add+0xaf/0x5c0
[   59.239627]  nsim_dev_probe+0x4fc/0x1140
[   59.240550]  really_probe+0x264/0xc00
[   59.241418]  driver_probe_device+0x208/0x2e0
[   59.242255]  __device_attach_driver+0x215/0x2d0
[   59.243150]  bus_for_each_drv+0x154/0x1d0
[   59.243944]  __device_attach+0x1ba/0x2b0
[   59.244923]  bus_probe_device+0x1dd/0x290
[   59.245805]  device_add+0xbac/0x1550
[   59.246528]  new_device_store+0x1f4/0x400
[   59.247306]  bus_attr_store+0x7b/0xa0
[   59.248047]  sysfs_kf_write+0x10f/0x170
[   59.248941]  kernfs_fop_write+0x283/0x430
[   59.249843]  __vfs_write+0x81/0x100
[   59.250546]  vfs_write+0x1ce/0x510
[   59.251190]  ksys_write+0x104/0x200
[   59.251873]  do_syscall_64+0xa4/0x4e0
[   59.252642]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   59.253837]
[   59.254203] Freed by task 187:
[   59.254811]  save_stack+0x19/0x80
[   59.255463]  __kasan_slab_free+0x125/0x170
[   59.256265]  kfree+0x100/0x440
[   59.256870]  nsim_dev_remove+0x98/0x100
[   59.257651]  nsim_bus_remove+0x16/0x20
[   59.258382]  device_release_driver_internal+0x20b/0x4d0
[   59.259588]  bus_remove_device+0x2e9/0x5a0
[   59.260551]  device_del+0x410/0xad0
[   59.263777]  device_unregister+0x26/0xc0
[   59.264616]  nsim_bus_dev_del+0x16/0x60
[   59.265381]  del_device_store+0x2d6/0x3c0
[   59.266295]  bus_attr_store+0x7b/0xa0
[   59.267192]  sysfs_kf_write+0x10f/0x170
[   59.267960]  kernfs_fop_write+0x283/0x430
[   59.268800]  __vfs_write+0x81/0x100
[   59.269551]  vfs_write+0x1ce/0x510
[   59.270252]  ksys_write+0x104/0x200
[   59.270910]  do_syscall_64+0xa4/0x4e0
[   59.271680]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   59.272812]
[   59.273211] The buggy address belongs to the object at ffff8883cbdd3200
[   59.273211]  which belongs to the cache kmalloc-512 of size 512
[   59.275838] The buggy address is located 408 bytes inside of
[   59.275838]  512-byte region [ffff8883cbdd3200, ffff8883cbdd3400)
[   59.278151] The buggy address belongs to the page:
[   59.279215] page:ffffea000f2f7400 refcount:1 mapcount:0 mapping:ffff8883ecc0ce00 index:0x0 compound_mapcount: 0
[   59.281449] flags: 0x200000000010200(slab|head)
[   59.282356] raw: 0200000000010200 ffffea000f2f3a08 ffffea000f2fd608 ffff8883ecc0ce00
[   59.283949] raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
[   59.285608] page dumped because: kasan: bad access detected
[   59.286981]
[   59.287337] Memory state around the buggy address:
[   59.288310]  ffff8883cbdd3280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.289763]  ffff8883cbdd3300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.291452] >ffff8883cbdd3380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   59.292945]                             ^
[   59.293815]  ffff8883cbdd3400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   59.295220]  ffff8883cbdd3480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   59.296872] ==================================================================

Fixes: da58f90f11 ("netdevsim: Add devlink-trap support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: syzbot+9ed8f68ab30761f3678e@syzkaller.appspotmail.com
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 12:35:14 -07:00
David Howells f9c32435ab rxrpc: Fix handling of last subpacket of jumbo packet
When rxrpc_recvmsg_data() sets the return value to 1 because it's drained
all the data for the last packet, it checks the last-packet flag on the
whole packet - but this is wrong, since the last-packet flag is only set on
the final subpacket of the last jumbo packet.  This means that a call that
receives its last packet in a jumbo packet won't complete properly.

Fix this by having rxrpc_locate_data() determine the last-packet state of
the subpacket it's looking at and passing that back to the caller rather
than having the caller look in the packet header.  The caller then needs to
cache this in the rxrpc_call struct as rxrpc_locate_data() isn't then
called again for this packet.

Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Fixes: e2de6c4048 ("rxrpc: Use info in skbuff instead of reparsing a jumbo packet")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 12:23:09 -07:00
David S. Miller 5a7ec66782 Just two fixes:
* HT operation is not allowed on channel 14 (Japan only)
  * netlink policy for nexthop attribute was wrong
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Merge tag 'mac80211-for-net-2019-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Just two fixes:
 * HT operation is not allowed on channel 14 (Japan only)
 * netlink policy for nexthop attribute was wrong
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-31 11:43:36 -07:00
Felipe Balbi d8eca64eec usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
When disabling an endpoint which has cancelled requests, we should
make sure to giveback requests that are currently pending in the
cancelled list, otherwise we may fall into a situation where command
completion interrupt fires after endpoint has been disabled, therefore
causing a splat.

Fixes: fec9095bde "usb: dwc3: gadget: remove wait_end_transfer"
Reported-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Link: https://lore.kernel.org/r/20191031090713.1452818-1-felipe.balbi@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-31 18:57:54 +01:00
Dan Carpenter 41591a51f0 iocost: don't nest spin_lock_irq in ioc_weight_write()
This code causes a static analysis warning:

    block/blk-iocost.c:2113 ioc_weight_write() error: double lock 'irq'

We disable IRQs in blkg_conf_prep() and re-enable them in
blkg_conf_finish().  IRQ disable/enable should not be nested because
that means the IRQs will be enabled at the first unlock instead of the
second one.

Fixes: 7caa47151a ("blkcg: implement blk-iocost")
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-31 11:40:57 -06:00