Pull cgroup fixes from Tejun Heo:
 "This contains the cgroup.procs permission check fixes so that they use
  the credentials at the time of open rather than write, which also
  fixes the cgroup namespace lifetime bug"

* 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  selftests: cgroup: Test open-time cgroup namespace usage for migration checks
  selftests: cgroup: Test open-time credential usage for migration checks
  selftests: cgroup: Make cg_create() use 0755 for permission instead of 0644
  cgroup: Use open-time cgroup namespace for process migration perm checks
  cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv
  cgroup: Use open-time credentials for process migraton perm checks

Pull block fix from Jens Axboe:
 "Just the md bitmap regression this time"

* tag 'block-5.16-2022-01-07' of git://git.kernel.dk/linux-block:
  md/raid1: fix missing bitmap update w/o WriteMostly devices

Pull EDAC fix from Tony Luck:
 "Fix 10nm EDAC driver to release and unmap resources on systems without
  HBM"

* tag 'edac_urgent_for_v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/i10nm: Release mdev/mbase when failing to detect HBM

Pull kvm fixes from Paolo Bonzini:
 "Two small fixes for x86:

   - lockdep WARN due to missing lock nesting annotation

   - NULL pointer dereference when accessing debugfs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Check for rmaps allocation
  KVM: SEV: Mark nested locking of kvm->lock

Pull drm fixes from Dave Airlie:
 "There is only the amdgpu runtime pm regression fix in here:

  amdgpu:

   - suspend/resume fix

   - fix runtime PM regression"

* tag 'drm-fixes-2022-01-07' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: disable runpm if we are the primary adapter
  fbdev: fbmem: add a helper to determine if an aperture is used by a fw fb
  drm/amd/pm: keep the BACO feature enabled for suspend

With TDP MMU being the default now, access to mmu_rmaps_stat debugfs
file causes following oops:

BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 7 PID: 3185 Comm: cat Not tainted 5.16.0-rc4+ #204
RIP: 0010:pte_list_count+0x6/0x40
 Call Trace:
  <TASK>
  ? kvm_mmu_rmaps_stat_show+0x15e/0x320
  seq_read_iter+0x126/0x4b0
  ? aa_file_perm+0x124/0x490
  seq_read+0xf5/0x140
  full_proxy_read+0x5c/0x80
  vfs_read+0x9f/0x1a0
  ksys_read+0x67/0xe0
  __x64_sys_read+0x19/0x20
  do_syscall_64+0x3b/0xc0
  entry_SYSCALL_64_after_hwframe+0x44/0xae
 RIP: 0033:0x7fca6fc13912

Return early when rmaps are not present.
Reported-by: Vasant Hegde <vasant.hegde@amd.com>
Tested-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Nikunj A Dadhania <nikunj@amd.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220105040337.4234-1-nikunj@amd.com>
Cc: stable@vger.kernel.org
Fixes: 3bcd0662 ("KVM: X86: Introduce mmu_rmaps_stat per-vm debugfs file")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Both source and dest vms' kvm->locks are held in sev_lock_two_vms.
Mark one with a different subtype to avoid false positives from lockdep.

Fixes: c9d61dcb (KVM: SEV: accept signals in sev_lock_two_vms)
Reported-by: Yiru Xu <xyru1999@gmail.com>
Tested-by: Jinrong Liang <cloudliang@tencent.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1641364863-26331-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Pull rdma fixes from Jason Gunthorpe:
 "Last pull for 5.16, the reversion has been known for a while now but
  didn't get a proper fix in time. Looks like we will have several
  info-leak bugs to take care of going foward.

   - Revert the patch fixing the DM related crash causing a widespread
     regression for kernel ULPs. A proper fix just didn't appear this
     cycle due to the holidays

   - Missing NULL check on alloc in uverbs

   - Double free in rxe error paths

   - Fix a new kernel-infoleak report when forming ah_attr's without
     GRH's in ucma"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/core: Don't infoleak GRH fields
  RDMA/uverbs: Check for null return of kmalloc_array
  Revert "RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow"
  RDMA/rxe: Prevent double freeing rxe_map_set()

Pull tracing fixes from Steven Rostedt:
 "Three minor tracing fixes:

   - Fix missing prototypes in sample module for direct functions

   - Fix check of valid buffer in get_trace_buf()

   - Fix annotations of percpu pointers"

* tag 'trace-v5.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Tag trace_percpu_buffer as a percpu pointer
  tracing: Fix check for trace_percpu_buffer validity in get_trace_buf()
  ftrace/samples: Add missing prototypes direct functions

When a task is writing to an fd opened by a different task, the perm check
should use the cgroup namespace of the latter task. Add a test for it.
Tested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

When a task is writing to an fd opened by a different task, the perm check
should use the credentials of the latter task. Add a test for it.
Tested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

0644 is an odd perm to create a cgroup which is a directory. Use the regular
0755 instead. This is necessary for euid switching test case.
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

cgroup process migration permission checks are performed at write time as
whether a given operation is allowed or not is dependent on the content of
the write - the PID. This currently uses current's cgroup namespace which is
a potential security weakness as it may allow scenarios where a less
privileged process tricks a more privileged one into writing into a fd that
it created.

This patch makes cgroup remember the cgroup namespace at the time of open
and uses it for migration permission checks instad of current's. Note that
this only applies to cgroup2 as cgroup1 doesn't have namespace support.

This also fixes a use-after-free bug on cgroupns reported in

 https://lore.kernel.org/r/00000000000048c15c05d0083397@google.com

Note that backporting this fix also requires the preceding patch.
Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Michal Koutný <mkoutny@suse.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Reported-by: syzbot+50f5cf33a284ce738b62@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/00000000000048c15c05d0083397@google.com
Fixes: 5136f636 ("cgroup: implement "nsdelegate" mount option")
Signed-off-by: Tejun Heo <tj@kernel.org>

of->priv is currently used by each interface file implementation to store
private information. This patch collects the current two private data usages
into struct cgroup_file_ctx which is allocated and freed by the common path.
This allows generic private data which applies to multiple files, which will
be used to in the following patch.

Note that cgroup_procs iterator is now embedded as procs.iter in the new
cgroup_file_ctx so that it doesn't need to be allocated and freed
separately.

v2: union dropped from cgroup_file_ctx and the procs iterator is embedded in
    cgroup_file_ctx as suggested by Linus.

v3: Michal pointed out that cgroup1's procs pidlist uses of->priv too.
    Converted. Didn't change to embedded allocation as cgroup1 pidlists get
    stored for caching.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Michal Koutný <mkoutny@suse.com>

cgroup process migration permission checks are performed at write time as
whether a given operation is allowed or not is dependent on the content of
the write - the PID. This currently uses current's credentials which is a
potential security weakness as it may allow scenarios where a less
privileged process tricks a more privileged one into writing into a fd that
it created.

This patch makes both cgroup2 and cgroup1 process migration interfaces to
use the credentials saved at the time of open (file->f_cred) instead of
current's.
Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Fixes: 187fe840 ("cgroup: require write perm on common ancestor when moving processes on the default hierarchy")
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Merge tag 'amd-drm-fixes-5.16-2021-12-31' of ssh://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.16-2021-12-31:

amdgpu:
- Suspend/resume fix
- Restore runtime pm behavior with efifb
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211231143825.11479-1-alexander.deucher@amd.com

Tag trace_percpu_buffer as a percpu pointer to resolve warnings
reported by sparse:
  /linux/kernel/trace/trace.c:3218:46: warning: incorrect type in initializer (different address spaces)
  /linux/kernel/trace/trace.c:3218:46:    expected void const [noderef] __percpu *__vpp_verify
  /linux/kernel/trace/trace.c:3218:46:    got struct trace_buffer_struct *
  /linux/kernel/trace/trace.c:3234:9: warning: incorrect type in initializer (different address spaces)
  /linux/kernel/trace/trace.c:3234:9:    expected void const [noderef] __percpu *__vpp_verify
  /linux/kernel/trace/trace.c:3234:9:    got int *

Link: https://lkml.kernel.org/r/ebabd3f23101d89cb75671b68b6f819f5edc830b.1640255304.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 07d777fe ("tracing: Add percpu buffers for trace_printk()")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

With the new osnoise tracer, we are seeing the below splat:
    Kernel attempted to read user page (c7d880000) - exploit attempt? (uid: 0)
    BUG: Unable to handle kernel data access on read at 0xc7d880000
    Faulting instruction address: 0xc0000000002ffa10
    Oops: Kernel access of bad area, sig: 11 [#1]
    LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
    ...
    NIP [c0000000002ffa10] __trace_array_vprintk.part.0+0x70/0x2f0
    LR [c0000000002ff9fc] __trace_array_vprintk.part.0+0x5c/0x2f0
    Call Trace:
    [c0000008bdd73b80] [c0000000001c49cc] put_prev_task_fair+0x3c/0x60 (unreliable)
    [c0000008bdd73be0] [c000000000301430] trace_array_printk_buf+0x70/0x90
    [c0000008bdd73c00] [c0000000003178b0] trace_sched_switch_callback+0x250/0x290
    [c0000008bdd73c90] [c000000000e70d60] __schedule+0x410/0x710
    [c0000008bdd73d40] [c000000000e710c0] schedule+0x60/0x130
    [c0000008bdd73d70] [c000000000030614] interrupt_exit_user_prepare_main+0x264/0x270
    [c0000008bdd73de0] [c000000000030a70] syscall_exit_prepare+0x150/0x180
    [c0000008bdd73e10] [c00000000000c174] system_call_vectored_common+0xf4/0x278

osnoise tracer on ppc64le is triggering osnoise_taint() for negative
duration in get_int_safe_duration() called from
trace_sched_switch_callback()->thread_exit().

The problem though is that the check for a valid trace_percpu_buffer is
incorrect in get_trace_buf(). The check is being done after calculating
the pointer for the current cpu, rather than on the main percpu pointer.
Fix the check to be against trace_percpu_buffer.

Link: https://lkml.kernel.org/r/a920e4272e0b0635cf20c444707cbce1b2c8973d.1640255304.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Fixes: e2ace001 ("tracing: Choose static tp_printk buffer by explicit nesting count")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

There's another compilation fail (first here [1]) reported by kernel
test robot for W=1 clang build:

  >> samples/ftrace/ftrace-direct-multi-modify.c:7:6: warning: no previous
  prototype for function 'my_direct_func1' [-Wmissing-prototypes]
     void my_direct_func1(unsigned long ip)

Direct functions in ftrace direct sample modules need to have prototypes
defined. They are already global in order to be visible for the inline
assembly, so there's no problem.

The kernel test robot reported just error for ftrace-direct-multi-modify,
but I got same errors also for the rest of the modules touched by this patch.

[1] 67d4f6e3 ftrace/samples: Add missing prototype for my_direct_func

Link: https://lkml.kernel.org/r/20211219135317.212430-1-jolsa@kernel.orgReported-by: kernel test robot <lkp@intel.com>
Fixes: e1067a07 ("ftrace/samples: Add module to test multi direct modify interface")
Fixes: ae0cc3b7 ("ftrace/samples: Add a sample module that implements modify_ftrace_direct()")
Fixes: 156473a0 ("ftrace: Add another example of register_ftrace_direct() use case")
Fixes: b06457c8 ("ftrace: Add sample module that uses register_ftrace_direct()")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Pull networking fixes from Jakub Kicinski"
 "Networking fixes, including fixes from bpf, and WiFi. One last pull
  request, turns out some of the recent fixes did more harm than good.

  Current release - regressions:

   - Revert "xsk: Do not sleep in poll() when need_wakeup set", made the
     problem worse

   - Revert "net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in
     __fixed_phy_register", broke EPROBE_DEFER handling

   - Revert "net: usb: r8152: Add MAC pass-through support for more
     Lenovo Docks", broke setups without a Lenovo dock

  Current release - new code bugs:

   - selftests: set amt.sh executable

  Previous releases - regressions:

   - batman-adv: mcast: don't send link-local multicast to mcast routers

  Previous releases - always broken:

   - ipv4/ipv6: check attribute length for RTA_FLOW / RTA_GATEWAY

   - sctp: hold endpoint before calling cb in
     sctp_transport_lookup_process

   - mac80211: mesh: embed mesh_paths and mpp_paths into
     ieee80211_if_mesh to avoid complicated handling of sub-object
     allocation failures

   - seg6: fix traceroute in the presence of SRv6

   - tipc: fix a kernel-infoleak in __tipc_sendmsg()"

* tag 'net-5.16-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits)
  selftests: set amt.sh executable
  Revert "net: usb: r8152: Add MAC passthrough support for more Lenovo Docks"
  sfc: The RX page_ring is optional
  iavf: Fix limit of total number of queues to active queues of VF
  i40e: Fix incorrect netdev's real number of RX/TX queues
  i40e: Fix for displaying message regarding NVM version
  i40e: fix use-after-free in i40e_sync_filters_subtask()
  i40e: Fix to not show opcode msg on unsuccessful VF MAC change
  ieee802154: atusb: fix uninit value in atusb_set_extended_addr
  mac80211: mesh: embedd mesh_paths and mpp_paths into ieee80211_if_mesh
  mac80211: initialize variable have_higher_than_11mbit
  sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc
  netrom: fix copying in user data in nr_setsockopt
  udp6: Use Segment Routing Header for dest address if present
  icmp: ICMPV6: Examine invoking packet for Segment Route Headers.
  seg6: export get_srh() for ICMP handling
  Revert "net: phy: fixed_phy: Fix NULL vs IS_ERR() checking in __fixed_phy_register"
  ipv6: Do cleanup if attribute validation fails in multipath route
  ipv6: Continue processing multipath route even if gateway attribute is invalid
  net/fsl: Remove leftover definition in xgmac_mdio
  ...

If dst->is_global field is not set, the GRH fields are not cleared
and the following infoleak is reported.

=====================================================
BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_user+0x1c9/0x270 lib/usercopy.c:33
 instrument_copy_to_user include/linux/instrumented.h:121 [inline]
 _copy_to_user+0x1c9/0x270 lib/usercopy.c:33
 copy_to_user include/linux/uaccess.h:209 [inline]
 ucma_init_qp_attr+0x8c7/0xb10 drivers/infiniband/core/ucma.c:1242
 ucma_write+0x637/0x6c0 drivers/infiniband/core/ucma.c:1732
 vfs_write+0x8ce/0x2030 fs/read_write.c:588
 ksys_write+0x28b/0x510 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __ia32_sys_write+0xdb/0x120 fs/read_write.c:652
 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline]
 __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180
 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205
 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Local variable resp created at:
 ucma_init_qp_attr+0xa4/0xb10 drivers/infiniband/core/ucma.c:1214
 ucma_write+0x637/0x6c0 drivers/infiniband/core/ucma.c:1732

Bytes 40-59 of 144 are uninitialized
Memory access of size 144 starts at ffff888167523b00
Data copied to user address 0000000020000100

CPU: 1 PID: 25910 Comm: syz-executor.1 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================

Fixes: 4ba66093 ("IB/core: Check for global flag when using ah_attr")
Link: https://lore.kernel.org/r/0e9dd51f93410b7b2f4f5562f52befc878b71afa.1641298868.git.leonro@nvidia.com
Reported-by: syzbot+6d532fa8f9463da290bc@syzkaller.appspotmail.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

amt.sh test script will not work because it doesn't have execution
permission. So, it adds execution permission.
Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Fixes: c08e8bae ("selftests: add amt interface selftest script")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Link: https://lore.kernel.org/r/20220105144436.13415-1-ap420073@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Because of the possible failure of the allocation, data might be NULL
pointer and will cause the dereference of the NULL pointer later.
Therefore, it might be better to check it and return -ENOMEM.

Fixes: 6884c6c4 ("RDMA/verbs: Store the write/write_ex uapi entry points in the uverbs_api")
Link: https://lore.kernel.org/r/20211231093315.1917667-1-jiasheng@iscas.ac.cnSigned-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

This reverts commit f77b83b5.

This change breaks multiple usb to ethernet dongles attached on Lenovo
USB hub.

Fixes: f77b83b5 ("net: usb: r8152: Add MAC passthrough support for more Lenovo Docks")
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Link: https://lore.kernel.org/r/20220105155102.8557-1-aaron.ma@canonical.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Pull gpio fixes from Bartosz Golaszewski:
 "Here are two last fixes for this release cycle from the GPIO
  subsystem:

   - fix irq offset calculation in gpio-aspeed-sgpio

   - update the MAINTAINERS entry for gpio-brcmstb"

* tag 'gpio-fixes-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  MAINTAINERS: update gpio-brcmstb maintainers
  gpio: gpio-aspeed-sgpio: Fix wrong hwirq base in irq handler

Merge tag 'ieee802154-for-net-2022-01-05' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan

Stefan Schmidt says:

====================
pull-request: ieee802154 for net 2022-01-05

Below I have a last minute fix for the atusb driver.

Pavel fixes a KASAN uninit report for the driver. This version is the
minimal impact fix to ease backporting. A bigger rework of the driver to
avoid potential similar problems is ongoing and will come through net-next
when ready.

* tag 'ieee802154-for-net-2022-01-05' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan:
  ieee802154: atusb: fix uninit value in atusb_set_extended_addr
====================

Link: https://lore.kernel.org/r/20220105153914.512305-1-stefan@datenfreihafen.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

This patch is not the full fix and still causes to call traces
during mlx5_ib_dereg_mr().

This reverts commit f0ae4afe.

Fixes: f0ae4afe ("RDMA/mlx5: Fix releasing unallocated memory in dereg MR flow")
Link: https://lore.kernel.org/r/20211222101312.1358616-1-maorg@nvidia.comSigned-off-by: Maor Gottlieb <maorg@nvidia.com>
Acked-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2022-01-04

This series contains updates to i40e and iavf drivers.

Mateusz adjusts displaying of failed VF MAC message when the failure is
expected as well as modifying an NVM info message to not confuse the user
for i40e.

Di Zhu fixes a use-after-free issue MAC filters for i40e.

Jedrzej fixes an issue with misreporting of Rx and Tx queues during
reinitialization for i40e.

Karen correct checking of channel queue configuration to occur against
active queues for iavf.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

The RX page_ring is an optional feature that improves
performance. When allocation fails the driver can still
function, but possibly with a lower bandwidth.
Guard against dereferencing a NULL page_ring.

Fixes: 2768935a ("sfc: reuse pages to avoid DMA mapping/unmapping costs")
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Reported-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/164111288276.5798.10330502993729113868.stgit@palantir17.mph.netSigned-off-by: Jakub Kicinski <kuba@kernel.org>

In the absence of this validation, if the user requests to
configure queues more than the enabled queues, it results in
sending the requested number of queues to the kernel stack
(due to the asynchronous nature of VF response), in which
case the stack might pick a queue to transmit that is not
enabled and result in Tx hang. Fix this bug by
limiting the total number of queues allocated for VF to
active queues of VF.

Fixes: d5b33d02 ("i40evf: add ndo_setup_tc callback to i40evf")
Signed-off-by: Ashwin Vijayavel <ashwin.vijayavel@intel.com>
Signed-off-by: Karen Sornek <karen.sornek@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

There was a wrong queues representation in sysfs during
driver's reinitialization in case of online cpus number is
less than combined queues. It was caused by stopped
NetworkManager, which is responsible for calling vsi_open
function during driver's initialization.
In specific situation (ex. 12 cpus online) there were 16 queues
in /sys/class/net/<iface>/queues. In case of modifying queues with
value higher, than number of online cpus, then it caused write
errors and other errors.
Add updating of sysfs's queues representation during driver
initialization.

Fixes: 41c445ff ("i40e: main driver core")
Signed-off-by: Lukasz Cieplicki <lukaszx.cieplicki@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

When loading the i40e driver, it prints a message like: 'The driver for the
device detected a newer version of the NVM image v1.x than expected v1.y.
Please install the most recent version of the network driver.' This is
misleading as the driver is working as expected.

Fix that by removing the second part of message and changing it from
dev_info to dev_dbg.

Fixes: 4fb29bdd ("i40e: The driver now prints the API version in error message")
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Using ifconfig command to delete the ipv6 address will cause
the i40e network card driver to delete its internal mac_filter and
i40e_service_task kernel thread will concurrently access the mac_filter.
These two processes are not protected by lock
so causing the following use-after-free problems.

 print_address_description+0x70/0x360
 ? vprintk_func+0x5e/0xf0
 kasan_report+0x1b2/0x330
 i40e_sync_vsi_filters+0x4f0/0x1850 [i40e]
 i40e_sync_filters_subtask+0xe3/0x130 [i40e]
 i40e_service_task+0x195/0x24c0 [i40e]
 process_one_work+0x3f5/0x7d0
 worker_thread+0x61/0x6c0
 ? process_one_work+0x7d0/0x7d0
 kthread+0x1c3/0x1f0
 ? kthread_park+0xc0/0xc0
 ret_from_fork+0x35/0x40

Allocated by task 2279810:
 kasan_kmalloc+0xa0/0xd0
 kmem_cache_alloc_trace+0xf3/0x1e0
 i40e_add_filter+0x127/0x2b0 [i40e]
 i40e_add_mac_filter+0x156/0x190 [i40e]
 i40e_addr_sync+0x2d/0x40 [i40e]
 __hw_addr_sync_dev+0x154/0x210
 i40e_set_rx_mode+0x6d/0xf0 [i40e]
 __dev_set_rx_mode+0xfb/0x1f0
 __dev_mc_add+0x6c/0x90
 igmp6_group_added+0x214/0x230
 __ipv6_dev_mc_inc+0x338/0x4f0
 addrconf_join_solict.part.7+0xa2/0xd0
 addrconf_dad_work+0x500/0x980
 process_one_work+0x3f5/0x7d0
 worker_thread+0x61/0x6c0
 kthread+0x1c3/0x1f0
 ret_from_fork+0x35/0x40

Freed by task 2547073:
 __kasan_slab_free+0x130/0x180
 kfree+0x90/0x1b0
 __i40e_del_filter+0xa3/0xf0 [i40e]
 i40e_del_mac_filter+0xf3/0x130 [i40e]
 i40e_addr_unsync+0x85/0xa0 [i40e]
 __hw_addr_sync_dev+0x9d/0x210
 i40e_set_rx_mode+0x6d/0xf0 [i40e]
 __dev_set_rx_mode+0xfb/0x1f0
 __dev_mc_del+0x69/0x80
 igmp6_group_dropped+0x279/0x510
 __ipv6_dev_mc_dec+0x174/0x220
 addrconf_leave_solict.part.8+0xa2/0xd0
 __ipv6_ifa_notify+0x4cd/0x570
 ipv6_ifa_notify+0x58/0x80
 ipv6_del_addr+0x259/0x4a0
 inet6_addr_del+0x188/0x260
 addrconf_del_ifaddr+0xcc/0x130
 inet6_ioctl+0x152/0x190
 sock_do_ioctl+0xd8/0x2b0
 sock_ioctl+0x2e5/0x4c0
 do_vfs_ioctl+0x14e/0xa80
 ksys_ioctl+0x7c/0xa0
 __x64_sys_ioctl+0x42/0x50
 do_syscall_64+0x98/0x2c0
 entry_SYSCALL_64_after_hwframe+0x65/0xca

Fixes: 41c445ff ("i40e: main driver core")
Signed-off-by: Di Zhu <zhudi2@huawei.com>
Signed-off-by: Rui Zhang <zhangrui182@huawei.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Hide i40e opcode information sent during response to VF in case when
untrusted VF tried to change MAC on the VF interface.

This is implemented by adding an additional parameter 'hide' to the
response sent to VF function that hides the display of error
information, but forwards the error code to VF.

Previously it was not possible to send response with some error code
to VF without displaying opcode information.

Fixes: 5c3c48ac ("i40e: implement virtual device interface")
Signed-off-by: Grzegorz Szczurek <grzegorzx.szczurek@intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski@intel.com>
Reviewed-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Tony Brelinski <tony.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

Alexander reported a use of uninitialized value in
atusb_set_extended_addr(), that is caused by reading 0 bytes via
usb_control_msg().

Fix it by validating if the number of bytes transferred is actually
correct, since usb_control_msg() may read less bytes, than was requested
by caller.

Fail log:

BUG: KASAN: uninit-cmp in ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
BUG: KASAN: uninit-cmp in atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
BUG: KASAN: uninit-cmp in atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
Uninit value used in comparison: 311daa649a2003bd stack handle: 000000009a2003bd
 ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
 atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
 atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
 usb_probe_interface+0x314/0x7f0 drivers/usb/core/driver.c:396

Fixes: 7490b008 ("ieee802154: add support for atusb transceiver")
Reported-by: Alexander Potapenko <glider@google.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20220104182806.7188-1-paskripkin@gmail.comSigned-off-by: Stefan Schmidt <stefan@datenfreihafen.org>

On systems without HBM (High Bandwidth Memory) mdev/mbase are not
released/unmapped.

Add the code to release mdev/mbase when failing to detect HBM.

[Tony: re-word commit message]

Cc: <stable@vger.kernel.org>
Fixes: c9450883 ("EDAC/i10nm: Add support for high bandwidth memory")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20211224091126.1246-1-qiuxu.zhuo@intel.com

Merge tag 'mac80211-for-net-2022-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
Two more changes:
 - mac80211: initialize a variable to avoid using it uninitialized
 - mac80211 mesh: put some data structures into the container to
   fix bugs with and not have to deal with allocation failures

* tag 'mac80211-for-net-2022-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211:
  mac80211: mesh: embedd mesh_paths and mpp_paths into ieee80211_if_mesh
  mac80211: initialize variable have_higher_than_11mbit
====================

Link: https://lore.kernel.org/r/20220104144449.64937-1-johannes@sipsolutions.netSigned-off-by: Jakub Kicinski <kuba@kernel.org>

The same rxe_map_set could be freed twice:

rxe_reg_user_mr()
  -> rxe_mr_init_user()
    -> rxe_mr_free_map_set() # 1st

  -> rxe_drop_ref()
   ...
    -> rxe_mr_cleanup()
      -> rxe_mr_free_map_set() # 2nd

Follow normal convection and put resource cleanup either in the error
unwind of the allocator, or the overall free function. Leave the object
unchanged with a NULL cur_map_set on failure and remove the unncessary
free in rxe_mr_init_user().

Link: https://lore.kernel.org/r/20211228014406.1033444-1-lizhijian@cn.fujitsu.comSigned-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Acked-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Syzbot hit NULL deref in rhashtable_free_and_destroy(). The problem was
in mesh_paths and mpp_paths being NULL.

mesh_pathtbl_init() could fail in case of memory allocation failure, but
nobody cared, since ieee80211_mesh_init_sdata() returns void. It led to
leaving 2 pointers as NULL. Syzbot has found null deref on exit path,
but it could happen anywhere else, because code assumes these pointers are
valid.

Since all ieee80211_*_setup_sdata functions are void and do not fail,
let's embedd mesh_paths and mpp_paths into parent struct to avoid
adding error handling on higher levels and follow the pattern of others
setup_sdata functions

Fixes: 60854fd9 ("mac80211: mesh: convert path table to rhashtable")
Reported-and-tested-by: syzbot+860268315ba86ea6b96b@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20211230195547.23977-1-paskripkin@gmail.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>

Clang static analysis reports this warnings

mlme.c:5332:7: warning: Branch condition evaluates to a
  garbage value
    have_higher_than_11mbit)
    ^~~~~~~~~~~~~~~~~~~~~~~

have_higher_than_11mbit is only set to true some of the time in
ieee80211_get_rates() but is checked all of the time.  So
have_higher_than_11mbit needs to be initialized to false.

Fixes: 5d6a1b06 ("mac80211: set basic rates earlier")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20211223162848.3243702-1-trix@redhat.comSigned-off-by: Johannes Berg <johannes.berg@intel.com>