142659 Commits

Author SHA1 Message Date
Linus Torvalds
5239ddeb48 Merge tag 'trace-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:

 - Fix polling to block on watermark like the reads do, as user space
   applications get confused when the select says read is available, and
   then the read blocks

 - Fix accounting of ring buffer dropped pages as it is what is used to
   determine if the buffer is empty or not

 - Fix memory leak in tracing_read_pipe()

 - Fix struct trace_array warning about being declared in parameters

 - Fix accounting of ftrace pages used in output at start up.

 - Fix allocation of dyn_ftrace pages by subtracting one from order
   instead of diving it by 2

 - Static analyzer found a case were a pointer being used outside of a
   NULL check (rb_head_page_deactivate())

 - Fix possible NULL pointer dereference if kstrdup() fails in
   ftrace_add_mod()

 - Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()

 - Fix bad pointer dereference in register_synth_event() on error path

 - Remove unused __bad_type_size() method

 - Fix possible NULL pointer dereference of entry in list 'tr->err_log'

 - Fix NULL pointer deference race if eprobe is called before the event
   setup

* tag 'trace-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix race where eprobes can be called before the event
  tracing: Fix potential null-pointer-access of entry in list 'tr->err_log'
  tracing: Remove unused __bad_type_size() method
  tracing: Fix wild-memory-access in register_synth_event()
  tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()
  ftrace: Fix null pointer dereference in ftrace_add_mod()
  ring_buffer: Do not deactivate non-existant pages
  ftrace: Optimize the allocation for mcount entries
  ftrace: Fix the possible incorrect kernel message
  tracing: Fix warning on variable 'struct trace_array'
  tracing: Fix memory leak in tracing_read_pipe()
  ring-buffer: Include dropped pages in counting dirty patches
  tracing/ring-buffer: Have polling block on watermark
2022-11-20 15:25:32 -08:00
Linus Torvalds
a66e4cbf7a Merge tag 'io_uring-6.1-2022-11-18' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
 "This is mostly fixing issues around the poll rework, but also two
  tweaks for the multishot handling for accept and receive.

  All stable material"

* tag 'io_uring-6.1-2022-11-18' of git://git.kernel.dk/linux:
  io_uring: disallow self-propelled ring polling
  io_uring: fix multishot recv request leaks
  io_uring: fix multishot accept request leaks
  io_uring: fix tw losing poll events
  io_uring: update res mask in io_poll_check_events
2022-11-18 14:59:53 -08:00
Linus Torvalds
f4408c3dfc Merge tag 'block-6.1-2022-11-18' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
      - Two more bogus nid quirks (Bean Huo, Tiago Dias Ferreira)
      - Memory leak fix in nvmet (Sagi Grimberg)

 - Regression fix for block cgroups pinning the wrong blkcg, causing
   leaks of cgroups and blkcgs (Chris)

 - UAF fix for drbd setup error handling (Dan)

 - Fix DMA alignment propagation in DM (Keith)

* tag 'block-6.1-2022-11-18' of git://git.kernel.dk/linux:
  dm-log-writes: set dma_alignment limit in io_hints
  dm-integrity: set dma_alignment limit in io_hints
  block: make blk_set_default_limits() private
  dm-crypt: provide dma_alignment limit in io_hints
  block: make dma_alignment a stacking queue_limit
  nvmet: fix a memory leak in nvmet_auth_set_key
  nvme-pci: add NVME_QUIRK_BOGUS_NID for Netac NV7000
  drbd: use after free in drbd_create_device()
  nvme-pci: add NVME_QUIRK_BOGUS_NID for Micron Nitro
  blk-cgroup: properly pin the parent in blkcg_css_online
2022-11-18 13:59:45 -08:00
Linus Torvalds
ae55826837 Merge tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "A fair amount of commits at this time due to ASoC PR merge, but all
  look small and easy, mostly device-specific fixes spanned in various
  drivers. Hopefully this should be the last big chunk for 6.1"

* tag 'sound-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
  ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book Pro 360
  ALSA: hda/realtek: fix speakers for Samsung Galaxy Book Pro
  ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open()
  ASoC: stm32: dfsdm: manage cb buffers cleanup
  ASoC: sof_es8336: reduce pop noise on speaker
  ASoC: SOF: topology: No need to assign core ID if token parsing failed
  ASoC: soc-utils: Remove __exit for snd_soc_util_exit()
  ASoC: rt5677: fix legacy dai naming
  ASoC: rt5514: fix legacy dai naming
  ASoC: SOF: ipc3-topology: use old pipeline teardown flow with SOF2.1 and older
  ASoC: hda: intel-dsp-config: add ES83x6 quirk for IceLake
  ASoC: Intel: soc-acpi: add ES83x6 support to IceLake
  ASoC: tas2780: Fix set_tdm_slot in case of single slot
  ASoC: tas2764: Fix set_tdm_slot in case of single slot
  ASoC: tas2770: Fix set_tdm_slot in case of single slot
  ASoC: fsl_asrc fsl_esai fsl_sai: allow CONFIG_PM=N
  ASoC: core: Fix use-after-free in snd_soc_exit()
  MAINTAINERS: update Tzung-Bi's email address
  ASoC: Intel: bytcht_es8316: Add quirk for the Nanote UMPC-01
  ASoC: amd: yc: Add Alienware m17 R5 AMD into DMI table
  ...
2022-11-18 09:52:10 -08:00
Linus Torvalds
84368d882b Merge tag 'soc-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
 "Another set of devicetree and code changes for SoC platforms, notably:

   - DT schema warning fixes for i.MX

   - Functional fixes for i.MX tqma8mqml-mba8mx USB and i.MX8M OCOTP

   - MAINTAINERS updates for Hisilicon and RISC-V, documenting which
     RISC-V SoC specific patches will now get merged through the SoC
     tree in the future.

   - A code fix for at91 suspend, to work around broken hardware

   - A devicetree fix for lan966x/pcb8291 LED support

   - Lots of DT fixes for Qualcomm SoCs, mostly fixing minor problems
     like incorrect register sizes and schema warnings. One fix makes
     the UFS controller work on sc8280xp, and six fixes address the same
     regulator problem in a variety of platforms"

* tag 'soc-fixes-6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (31 commits)
  MAINTAINERS: repair Microchip corei2c driver entry
  MAINTAINERS: add an entry for StarFive devicetrees
  MAINTAINERS: generify the Microchip RISC-V entry name
  MAINTAINERS: add entries for misc. RISC-V SoC drivers and devicetrees
  MAINTAINERS: git://github.com -> https://github.com for HiSilicon
  soc: imx8m: Enable OCOTP clock before reading the register
  arm64: dts: imx93-pinfunc: drop execution permission
  arm64: dts: imx8mn: Fix NAND controller size-cells
  arm64: dts: imx8mm: Fix NAND controller size-cells
  ARM: dts: imx7: Fix NAND controller size-cells
  arm64: dts: imx8mm-tqma8mqml-mba8mx: Fix USB DR
  ARM: at91: pm: avoid soft resetting AC DLL
  ARM: dts: lan966x: Enable sgpio on pcb8291
  arm64: dts: qcom: sm8250: Disable the not yet supported cluster idle state
  ARM: dts: at91: sama7g5: fix signal name of pin PB2
  arm64: dts: qcom: sc7280: Add the reset reg for lpass audiocc on SC7280
  arm64: dts: qcom: sc8280xp: fix UFS PHY serdes size
  arm64: dts: qcom: sc8280xp: drop broken DP PHY nodes
  arm64: dts: qcom: sc8280xp: fix USB PHY PCS registers
  arm64: dts: qcom: sc8280xp: fix USB1 PHY RX1 registers
  ...
2022-11-17 14:06:25 -08:00
Pavel Begunkov
9148286476 io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't guarantee that the request is
executed as a multishot from the polling path. Fortunately for us, if
the code thinks it's multishot issue when it's not, it can only ask to
skip completion so leaking the request. Use issue_flags to mark
multipoll issues.

Cc: stable@vger.kernel.org
Fixes: 390ed29b5e ("io_uring: add IORING_ACCEPT_MULTISHOT for accept")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7700ac57653f2823e30b34dc74da68678c0c5f13.1668710222.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-17 12:33:33 -07:00
Linus Torvalds
847ccab8fd Merge tag 'net-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
 "Including fixes from bpf.

  Current release - regressions:

   - tls: fix memory leak in tls_enc_skb() and tls_sw_fallback_init()

  Previous releases - regressions:

   - bridge: fix memory leaks when changing VLAN protocol

   - dsa: make dsa_master_ioctl() see through port_hwtstamp_get() shims

   - dsa: don't leak tagger-owned storage on switch driver unbind

   - eth: mlxsw: avoid warnings when not offloaded FDB entry with IPv6
     is removed

   - eth: stmmac: ensure tx function is not running in
     stmmac_xdp_release()

   - eth: hns3: fix return value check bug of rx copybreak

  Previous releases - always broken:

   - kcm: close race conditions on sk_receive_queue

   - bpf: fix alignment problem in bpf_prog_test_run_skb()

   - bpf: fix writing offset in case of fault in
     strncpy_from_kernel_nofault

   - eth: macvlan: use built-in RCU list checking

   - eth: marvell: add sleep time after enabling the loopback bit

   - eth: octeon_ep: fix potential memory leak in octep_device_setup()

  Misc:

   - tcp: configurable source port perturb table size

   - bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)"

* tag 'net-6.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
  net: use struct_group to copy ip/ipv6 header addresses
  net: usb: smsc95xx: fix external PHY reset
  net: usb: qmi_wwan: add Telit 0x103a composition
  netdevsim: Fix memory leak of nsim_dev->fa_cookie
  tcp: configurable source port perturb table size
  l2tp: Serialize access to sk_user_data with sk_callback_lock
  net: thunderbolt: Fix error handling in tbnet_init()
  net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()
  net: lan966x: Fix potential null-ptr-deref in lan966x_stats_init()
  net: dsa: don't leak tagger-owned storage on switch driver unbind
  net/x25: Fix skb leak in x25_lapb_receive_frame()
  net: ag71xx: call phylink_disconnect_phy if ag71xx_hw_enable() fail in ag71xx_open()
  bridge: switchdev: Fix memory leaks when changing VLAN protocol
  net: hns3: fix setting incorrect phy link ksettings for firmware in resetting process
  net: hns3: fix return value check bug of rx copybreak
  net: hns3: fix incorrect hw rss hash type of rx packet
  net: phy: marvell: add sleep time after enabling the loopback bit
  net: ena: Fix error handling in ena_init()
  kcm: close race conditions on sk_receive_queue
  net: ionic: Fix error handling in ionic_init_module()
  ...
2022-11-17 08:58:36 -08:00
Hangbin Liu
58e0be1ef6 net: use struct_group to copy ip/ipv6 header addresses
kernel test robot reported warnings when build bonding module with
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/bonding/:

                 from ../drivers/net/bonding/bond_main.c:35:
In function ‘fortify_memcpy_chk’,
    inlined from ‘iph_to_flow_copy_v4addrs’ at ../include/net/ip.h:566:2,
    inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3984:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
  413 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘fortify_memcpy_chk’,
    inlined from ‘iph_to_flow_copy_v6addrs’ at ../include/net/ipv6.h:900:2,
    inlined from ‘bond_flow_ip’ at ../drivers/net/bonding/bond_main.c:3994:3:
../include/linux/fortify-string.h:413:25: warning: call to ‘__read_overflow2_field’ declared with attribute warning: detected read beyond size of f
ield (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
  413 |                         __read_overflow2_field(q_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This is because we try to copy the whole ip/ip6 address to the flow_key,
while we only point the to ip/ip6 saddr. Note that since these are UAPI
headers, __struct_group() is used to avoid the compiler warnings.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: c3f8324188 ("net: Add full IPv6 addresses to flow_keys")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20221115142400.1204786-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-17 10:42:45 +01:00
Aashish Sharma
bedf06833b tracing: Fix warning on variable 'struct trace_array'
Move the declaration of 'struct trace_array' out of #ifdef
CONFIG_TRACING block, to fix the following warning when CONFIG_TRACING
is not set:

>> include/linux/trace.h:63:45: warning: 'struct trace_array' declared
inside parameter list will not be visible outside of this definition or
declaration

Link: https://lkml.kernel.org/r/20221107160556.2139463-1-shraash@google.com

Fixes: 1a77dd1c2b ("scsi: tracing: Fix compile error in trace_array calls when TRACING is disabled")
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Arun Easi <aeasi@marvell.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Aashish Sharma <shraash@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-11-16 21:52:05 -05:00
Keith Busch
b3228254bb block: make blk_set_default_limits() private
There are no external users of this function.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221110184501.2451620-4-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-16 15:58:11 -07:00
Keith Busch
c964d62f5c block: make dma_alignment a stacking queue_limit
Device mappers had always been getting the default 511 dma mask, but
the underlying device might have a larger alignment requirement. Since
this value is used to determine alloweable direct-io alignment, this
needs to be a stackable limit.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221110184501.2451620-2-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-16 15:58:11 -07:00
Steven Rostedt (Google)
42fb0a1e84 tracing/ring-buffer: Have polling block on watermark
Currently the way polling works on the ring buffer is broken. It will
return immediately if there's any data in the ring buffer whereas a read
will block until the watermark (defined by the tracefs buffer_percent file)
is hit.

That is, a select() or poll() will return as if there's data available,
but then the following read will block. This is broken for the way
select()s and poll()s are supposed to work.

Have the polling on the ring buffer also block the same way reads and
splice does on the ring buffer.

Link: https://lkml.kernel.org/r/20221020231427.41be3f26@gandalf.local.home

Cc: Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Primiano Tucci <primiano@google.com>
Cc: stable@vger.kernel.org
Fixes: 1e0d6714ac ("ring-buffer: Do not wake up a splice waiter when page is not full")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-11-16 17:13:04 -05:00
Jakub Sitnicki
b68777d54f l2tp: Serialize access to sk_user_data with sk_callback_lock
sk->sk_user_data has multiple users, which are not compatible with each
other. Writers must synchronize by grabbing the sk->sk_callback_lock.

l2tp currently fails to grab the lock when modifying the underlying tunnel
socket fields. Fix it by adding appropriate locking.

We err on the side of safety and grab the sk_callback_lock also inside the
sk_destruct callback overridden by l2tp, even though there should be no
refs allowing access to the sock at the time when sk_destruct gets called.

v4:
- serialize write to sk_user_data in l2tp sk_destruct

v3:
- switch from sock lock to sk_callback_lock
- document write-protection for sk_user_data

v2:
- update Fixes to point to origin of the bug
- use real names in Reported/Tested-by tags

Cc: Tom Parkin <tparkin@katalix.com>
Fixes: 3557baabf2 ("[L2TP]: PPP over L2TP driver core")
Reported-by: Haowei Yan <g1042620637@gmail.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-16 12:52:19 +00:00
Linus Torvalds
e01d50cbd6 Merge tag 'vfio-v6.1-rc6' of https://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:

 - Fixes for potential container registration leak for drivers not
   implementing a close callback, duplicate container de-registrations,
   and a regression in support for bus reset on last device close from
   a device set (Anthony DeRossi)

* tag 'vfio-v6.1-rc6' of https://github.com/awilliam/linux-vfio:
  vfio/pci: Check the device set open count on reset
  vfio: Export the device set open count
  vfio: Fix container device registration life cycle
2022-11-14 12:40:51 -08:00
Arnd Bergmann
e82b5b63c6 Merge tag 'at91-fixes-6.1' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/fixes
AT91 fixes for 6.1

It contains:
- signal name fix for a pin on SAMA7G5
- memory self-refresh fix for SAMA7G5 by avoid soft resetting AC
  DLL which can introduce glitches in RAM controller and lead to
  unexpected behavior
- led support fix for lan966x-pcb8291 board by enabling sgpio node

* tag 'at91-fixes-6.1' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: pm: avoid soft resetting AC DLL
  ARM: dts: lan966x: Enable sgpio on pcb8291
  ARM: dts: at91: sama7g5: fix signal name of pin PB2

Link: https://lore.kernel.org/r/20221110115411.180876-1-claudiu.beznea@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-11-14 10:22:41 +01:00
Linus Torvalds
ab57bc6f02 Merge tag 'efi-fixes-for-v6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:

 - Force the use of SetVirtualAddressMap() on Ampera Altra arm64
   machines, which crash in SetTime() if no virtual remapping is used

   This is the first time we've added an SMBIOS based quirk on arm64,
   but fortunately, we can just call a EFI protocol to grab the type #1
   SMBIOS record when running in the stub, so we don't need all the
   machinery we have in the kernel proper to parse SMBIOS data.

 - Drop a spurious warning on misaligned runtime regions when using 16k
   or 64k pages on arm64

* tag 'efi-fixes-for-v6.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  arm64: efi: Fix handling of misaligned runtime regions and drop warning
  arm64: efi: Force the use of SetVirtualAddressMap() on Altra machines
2022-11-13 07:52:22 -08:00
Takashi Iwai
5534bbb7c6 Merge tag 'asoc-fix-v6.2-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.1

A relatively large collection of fixes and new platform quirks here,
they're all fairly minor though - the widest possible impact is the fix
to the use of prefixes on regulator names which would have broken any
device that integrates regulators with DAPM and was used in a system
where it had a name prefix assigning to it.
2022-11-12 09:52:24 +01:00
Jakub Kicinski
c1754bf019 Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Andrii Nakryiko says:

====================
bpf 2022-11-11

We've added 11 non-merge commits during the last 8 day(s) which contain
a total of 11 files changed, 83 insertions(+), 74 deletions(-).

The main changes are:

1) Fix strncpy_from_kernel_nofault() to prevent out-of-bounds writes,
   from Alban Crequy.

2) Fix for bpf_prog_test_run_skb() to prevent wrong alignment,
   from Baisong Zhong.

3) Switch BPF_DISPATCHER to static_call() instead of ftrace infra, with
   a small build fix on top, from Peter Zijlstra and Nathan Chancellor.

4) Fix memory leak in BPF verifier in some error cases, from Wang Yufen.

5) 32-bit compilation error fixes for BPF selftests, from Pu Lehui and
   Yang Jihong.

6) Ensure even distribution of per-CPU free list elements, from Xu Kuohai.

7) Fix copy_map_value() to track special zeroed out areas properly,
   from Xu Kuohai.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf: Fix offset calculation error in __copy_map_value and zero_map_value
  bpf: Initialize same number of free nodes for each pcpu_freelist
  selftests: bpf: Add a test when bpf_probe_read_kernel_str() returns EFAULT
  maccess: Fix writing offset in case of fault in strncpy_from_kernel_nofault()
  selftests/bpf: Fix test_progs compilation failure in 32-bit arch
  selftests/bpf: Fix casting error when cross-compiling test_verifier for 32-bit platforms
  bpf: Fix memory leaks in __check_func_call
  bpf: Add explicit cast to 'void *' for __BPF_DISPATCHER_UPDATE()
  bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)
  bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")
  bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()
====================

Link: https://lore.kernel.org/r/20221111231624.938829-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-11 18:27:40 -08:00
Linus Torvalds
d7c2b1f64e Merge tag 'mm-hotfixes-stable-2022-11-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
 "22 hotfixes.

  Eight are cc:stable and the remainder address issues which were
  introduced post-6.0 or which aren't considered serious enough to
  justify a -stable backport"

* tag 'mm-hotfixes-stable-2022-11-11' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (22 commits)
  docs: kmsan: fix formatting of "Example report"
  mm/damon/dbgfs: check if rm_contexts input is for a real context
  maple_tree: don't set a new maximum on the node when not reusing nodes
  maple_tree: fix depth tracking in maple_state
  arch/x86/mm/hugetlbpage.c: pud_huge() returns 0 when using 2-level paging
  fs: fix leaked psi pressure state
  nilfs2: fix use-after-free bug of ns_writer on remount
  x86/traps: avoid KMSAN bugs originating from handle_bug()
  kmsan: make sure PREEMPT_RT is off
  Kconfig.debug: ensure early check for KMSAN in CONFIG_KMSAN_WARN
  x86/uaccess: instrument copy_from_user_nmi()
  kmsan: core: kmsan_in_runtime() should return true in NMI context
  mm: hugetlb_vmemmap: include missing linux/moduleparam.h
  mm/shmem: use page_mapping() to detect page cache for uffd continue
  mm/memremap.c: map FS_DAX device memory as decrypted
  Partly revert "mm/thp: carry over dirty bit when thp splits on pmd"
  nilfs2: fix deadlock in nilfs_count_free_blocks()
  mm/mmap: fix memory leak in mmap_region()
  hugetlbfs: don't delete error page from pagecache
  maple_tree: reorganize testing to restore module testing
  ...
2022-11-11 17:18:42 -08:00
Linus Torvalds
4e6b2b2e4f Merge tag 'io_uring-6.1-2022-11-11' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
 "Nothing major, just a few minor tweaks:

   - Tweak for the TCP zero-copy io_uring self test (Pavel)

   - Rather than use our internal cached value of number of CQ events
     available, use what the user can see (Dylan)

   - Fix a typo in a comment, added in this release (me)

   - Don't allow wrapping while adding provided buffers (me)

   - Fix a double poll race, and add a lockdep assertion for it too
     (Pavel)"

* tag 'io_uring-6.1-2022-11-11' of git://git.kernel.dk/linux:
  io_uring/poll: lockdep annote io_poll_req_insert_locked
  io_uring/poll: fix double poll req->flags races
  io_uring: check for rollover of buffer ID when providing buffers
  io_uring: calculate CQEs from the user visible value
  io_uring: fix typo in io_uring.h comment
  selftests/net: don't tests batched TCP io_uring zc
2022-11-11 14:02:44 -08:00
Xu Kuohai
1f6e04a1c7 bpf: Fix offset calculation error in __copy_map_value and zero_map_value
Function __copy_map_value and zero_map_value miscalculated copy offset,
resulting in possible copy of unwanted data to user or kernel.

Fix it.

Fixes: cc48755808 ("bpf: Add zero_map_value to zero map value with special fields")
Fixes: 4d7d7f69f4 ("bpf: Adapt copy_map_value for multiple offset case")
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/bpf/20221111125620.754855-1-xukuohai@huaweicloud.com
2022-11-11 12:35:07 -08:00
Linus Torvalds
df65494ffb Merge tag 'hardening-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening fix from Kees Cook:

 - Fix !SMP placement of '.data..decrypted' section (Nathan Chancellor)

* tag 'hardening-v6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  vmlinux.lds.h: Fix placement of '.data..decrypted' section
2022-11-11 11:41:02 -08:00
Linus Torvalds
5be07b3fb5 Merge tag 'hyperv-fixes-signed-20221110' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:

 - Fix TSC MSR write for root partition (Anirudh Rayabharam)

 - Fix definition of vector in pci-hyperv driver (Dexuan Cui)

 - A few other misc patches

* tag 'hyperv-fixes-signed-20221110' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  PCI: hv: Fix the definition of vector in hv_compose_msi_msg()
  MAINTAINERS: remove sthemmin
  x86/hyperv: fix invalid writes to MSRs during root partition kexec
  clocksource/drivers/hyperv: add data structure for reference TSC MSR
  Drivers: hv: fix repeated words in comments
  x86/hyperv: Remove BUG_ON() for kmap_local_page()
2022-11-11 09:24:03 -08:00
Linus Torvalds
91c77a6ec4 Merge tag 'dmaengine-fix-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine fixes from Vinod Koul:
 "Misc minor driver fixes and a big pile of at_hdmac driver fixes. More
  work on this driver is done and sitting in next:

   - Pile of at_hdmac driver rework which fixes many long standing
     issues for this driver.

   - couple of stm32 driver fixes for clearing structure and race fix

   - idxd fixes for RO device state and batch size

   - ti driver mem leak fix

   - apple fix for grabbing channels in xlate

   - resource leak fix in mv xor"

* tag 'dmaengine-fix-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (24 commits)
  dmaengine: at_hdmac: Check return code of dma_async_device_register
  dmaengine: at_hdmac: Fix impossible condition
  dmaengine: at_hdmac: Don't allow CPU to reorder channel enable
  dmaengine: at_hdmac: Fix completion of unissued descriptor in case of errors
  dmaengine: at_hdmac: Fix descriptor handling when issuing it to hardware
  dmaengine: at_hdmac: Fix concurrency over the active list
  dmaengine: at_hdmac: Free the memset buf without holding the chan lock
  dmaengine: at_hdmac: Fix concurrency over descriptor
  dmaengine: at_hdmac: Fix concurrency problems by removing atc_complete_all()
  dmaengine: at_hdmac: Protect atchan->status with the channel lock
  dmaengine: at_hdmac: Do not call the complete callback on device_terminate_all
  dmaengine: at_hdmac: Fix premature completion of desc in issue_pending
  dmaengine: at_hdmac: Start transfer for cyclic channels in issue_pending
  dmaengine: at_hdmac: Don't start transactions at tx_submit level
  dmaengine: at_hdmac: Fix at_lli struct definition
  dmaengine: stm32-dma: fix potential race between pause and resume
  dmaengine: ti: k3-udma-glue: fix memory leak when register device fail
  dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()
  dmaengine: apple-admac: Fix grabbing of channels in of_xlate
  dmaengine: idxd: fix RO device state error after been disabled/reset
  ...
2022-11-11 09:19:05 -08:00
Linus Torvalds
fd979ca691 Merge tag 'drm-fixes-2022-11-11' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Weekly pull request for graphics, mostly amdgpu and i915, with a
  couple of fixes for vc4 and panfrost, panel quirks and a kconfig
  change for rcar-du. Nothing seems to be too strange at this stage.

  amdgpu:
   - Fix s/r in amdgpu_vram_mgr_new
   - SMU 13.0.4 update
   - GPUVM TLB race fix
   - DCN 3.1.4 fixes
   - DCN 3.2.x fixes
   - Vega10 fan fix
   - BACO fix for Beige Goby board
   - PSR fix
   - GPU VM PT locking fixes

  amdkfd:
   - CRIU fixes

  vc4:
   - HDMI fixes to vc4.

  panfrost:
   - Make panfrost's uapi header compile with C++.
   - Handle 1 gb boundary correctly in panfrost mmu code.

  panel:
   - Add rotation quirks for 2 panels.

  rcar-du:
   - DSI Kconfig fix

  i915:
   - Fix sg_table handling in map_dma_buf
   - Send PSR update also on invalidate
   - Do not set cache_dirty for DGFX
   - Restore userptr probe_range behaviour"

* tag 'drm-fixes-2022-11-11' of git://anongit.freedesktop.org/drm/drm: (29 commits)
  drm/amd/display: only fill dirty rectangles when PSR is enabled
  drm/amdgpu: disable BACO on special BEIGE_GOBY card
  drm/amdgpu: Drop eviction lock when allocating PT BO
  drm/amdgpu: Unlock bo_list_mutex after error handling
  Revert "drm/amdgpu: Revert "drm/amdgpu: getting fan speed pwm for vega10 properly""
  drm/amd/display: Enforce minimum prefetch time for low memclk on DCN32
  drm/amd/display: Fix gpio port mapping issue
  drm/amd/display: Fix reg timeout in enc314_enable_fifo
  drm/amd/display: Fix FCLK deviation and tool compile issues
  drm/amd/display: Zeromem mypipe heap struct before using it
  drm/amd/display: Update SR watermarks for DCN314
  drm/amdgpu: workaround for TLB seq race
  drm/amdkfd: Fix error handling in criu_checkpoint
  drm/amdkfd: Fix error handling in kfd_criu_restore_events
  drm/amd/pm: update SMU IP v13.0.4 msg interface header
  drm: rcar-du: Fix Kconfig dependency between RCAR_DU and RCAR_MIPI_DSI
  drm/panfrost: Split io-pgtable requests properly
  drm/amdgpu: Fix the lpfn checking condition in drm buddy
  drm: panel-orientation-quirks: Add quirk for Acer Switch V 10 (SW5-017)
  drm: panel-orientation-quirks: Add quirk for Nanote UMPC-01
  ...
2022-11-11 08:50:36 -08:00
Linus Torvalds
4bbf3422df Merge tag 'net-6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, wifi, can and bpf.

  Current release - new code bugs:

   - can: af_can: can_exit(): add missing dev_remove_pack() of
     canxl_packet

  Previous releases - regressions:

   - bpf, sockmap: fix the sk->sk_forward_alloc warning

   - wifi: mac80211: fix general-protection-fault in
     ieee80211_subif_start_xmit()

   - can: af_can: fix NULL pointer dereference in can_rx_register()

   - can: dev: fix skb drop check, avoid o-o-b access

   - nfnetlink: fix potential dead lock in nfnetlink_rcv_msg()

  Previous releases - always broken:

   - bpf: fix wrong reg type conversion in release_reference()

   - gso: fix panic on frag_list with mixed head alloc types

   - wifi: brcmfmac: fix buffer overflow in brcmf_fweh_event_worker()

   - wifi: mac80211: set TWT Information Frame Disabled bit as 1

   - eth: macsec offload related fixes, make sure to clear the keys from
     memory

   - tun: fix memory leaks in the use of napi_get_frags

   - tun: call napi_schedule_prep() to ensure we own a napi

   - tcp: prohibit TCP_REPAIR_OPTIONS if data was already sent

   - ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to
     network

   - tipc: fix a msg->req tlv length check

   - sctp: clear out_curr if all frag chunks of current msg are pruned,
     avoid list corruption

   - mctp: fix an error handling path in mctp_init(), avoid leaks"

* tag 'net-6.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
  eth: sp7021: drop free_netdev() from spl2sw_init_netdev()
  MAINTAINERS: Move Vivien to CREDITS
  net: macvlan: fix memory leaks of macvlan_common_newlink
  ethernet: tundra: free irq when alloc ring failed in tsi108_open()
  net: mv643xx_eth: disable napi when init rxq or txq failed in mv643xx_eth_open()
  ethernet: s2io: disable napi when start nic failed in s2io_card_up()
  net: atlantic: macsec: clear encryption keys from the stack
  net: phy: mscc: macsec: clear encryption keys when freeing a flow
  stmmac: dwmac-loongson: fix missing of_node_put() while module exiting
  stmmac: dwmac-loongson: fix missing pci_disable_device() in loongson_dwmac_probe()
  stmmac: dwmac-loongson: fix missing pci_disable_msi() while module exiting
  cxgb4vf: shut down the adapter when t4vf_update_port_info() failed in cxgb4vf_open()
  mctp: Fix an error handling path in mctp_init()
  stmmac: intel: Update PCH PTP clock rate from 200MHz to 204.8MHz
  net: cxgb3_main: disable napi when bind qsets failed in cxgb_up()
  net: cpsw: disable napi in cpsw_ndo_open()
  iavf: Fix VF driver counting VLAN 0 filters
  ice: Fix spurious interrupt during removal of trusted VF
  net/mlx5e: TC, Fix slab-out-of-bounds in parse_tc_actions
  net/mlx5e: E-Switch, Fix comparing termination table instance
  ...
2022-11-10 17:31:15 -08:00
Ard Biesheuvel
550b33cfd4 arm64: efi: Force the use of SetVirtualAddressMap() on Altra machines
Ampere Altra machines are reported to misbehave when the SetTime() EFI
runtime service is called after ExitBootServices() but before calling
SetVirtualAddressMap(). Given that the latter is horrid, pointless and
explicitly documented as optional by the EFI spec, we no longer invoke
it at boot if the configured size of the VA space guarantees that the
EFI runtime memory regions can remain mapped 1:1 like they are at boot
time.

On Ampere Altra machines, this results in SetTime() calls issued by the
rtc-efi driver triggering synchronous exceptions during boot.  We can
now recover from those without bringing down the system entirely, due to
commit 23715a26c8 ("arm64: efi: Recover from synchronous
exceptions occurring in firmware"). However, it would be better to avoid
the issue entirely, given that the firmware appears to remain in a funny
state after this.

So attempt to identify these machines based on the 'family' field in the
type #1 SMBIOS record, and call SetVirtualAddressMap() unconditionally
in that case.

Tested-by: Alexandru Elisei <alexandru.elisei@gmail.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2022-11-10 23:14:14 +01:00
Dave Airlie
2e4b294576 Merge tag 'drm-misc-fixes-2022-11-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v6.1-rc5:
- HDMI fixes to vc4.
- Make panfrost's uapi header compile with C++.
- Add rotation quirks for 2 panels.
- Fix s/r in amdgpu_vram_mgr_new
- Handle 1 gb boundary correctly in panfrost mmu code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e02de501-4b85-28a0-3f6e-751ca13f5f9d@linux.intel.com
2022-11-11 06:31:38 +10:00
Anthony DeRossi
5cd189e410 vfio: Export the device set open count
The open count of a device set is the sum of the open counts of all
devices in the set. Drivers can use this value to determine whether
shared resources are in use without tracking them manually or accessing
the private open_count in vfio_device.

Signed-off-by: Anthony DeRossi <ajderossi@gmail.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20221110014027.28780-3-ajderossi@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2022-11-10 12:03:36 -07:00
Linus Torvalds
f67dd6ce07 Merge tag 'slab-for-6.1-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
 "Most are small fixups as described below.

  The !CONFIG_TRACING fix is a bit bigger and would normally be done in
  the next merge window as part of upcoming hardening changes. But we
  realized it can make the kmalloc waste tracking introduced in this
  window inaccurate, so decided to go with it now.

  Summary:

   - Remove !CONFIG_TRACING kmalloc() wrappers intended to save a
     function call, due to incompatilibity with recently introduced
     wasted space tracking and planned hardening changes.

   - A tracing parameter regression fix, by Kees Cook.

   - Two kernel-doc warning fixups, by Lukas Bulwahn and myself

* tag 'slab-for-6.1-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm, slab: remove duplicate kernel-doc comment for ksize()
  mm/slab_common: Restore passing "caller" for tracing
  mm/slab: remove !CONFIG_TRACING variants of kmalloc_[node_]trace()
  mm/slab_common: repair kernel-doc for __ksize()
2022-11-09 13:07:50 -08:00
Liam Howlett
120b116208 maple_tree: reorganize testing to restore module testing
Along the development cycle, the testing code support for module/in-kernel
compiles was removed.  Restore this functionality by moving any internal
API tests to the userspace side, as well as threading tests.  Fix the
lockdep issues and add a way to reduce memory usage so the tests can
complete with KASAN + memleak detection.  Make the tests work on 32 bit
hosts where possible and detect 32 bit hosts in the radix test suite.

[akpm@linux-foundation.org: fix module export]
[akpm@linux-foundation.org: fix it some more]
[liam.howlett@oracle.com: fix compile warnings on 32bit build in check_find()]
  Link: https://lkml.kernel.org/r/20221107203816.1260327-1-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20221028180415.3074673-1-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-11-08 15:57:22 -08:00
Linus Torvalds
f141df3713 Merge tag 'audit-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit fix from Paul Moore:
 "A small audit patch to fix an instance of undefined behavior in a
  shift operator caused when shifting a signed value too far, the same
  case as the lsm patch merged previously.

  While the fix is trivial and I can't imagine it causing a problem in a
  backport, I'm not explicitly marking it for stable on the off chance
  that there is some system out there which is relying on some wonky
  unexpected behavior which this patch could break; *if* it does break,
  IMO it's better that to happen in a minor or -rcX release and not in a
  stable backport"

* tag 'audit-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: fix undefined behavior in bit shift for AUDIT_BIT
2022-11-08 12:30:29 -08:00
Linus Torvalds
f49b2d89fb Merge tag 'lsm-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm fix from Paul Moore:
 "A small capability patch to fix an instance of undefined behavior in a
  shift operator caused when shifting a signed value too far.

  While the fix is trivial and I can't imagine it causing a problem in a
  backport, I'm not explicitly marking it for stable on the off chance
  that there is some system out there which is relying on some wonky
  unexpected behavior which this patch could break; *if* it does break,
  IMO it's better that to happen in a minor or -rcX release and not in a
  stable backport"

* tag 'lsm-pr-20221107' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  capabilities: fix undefined behavior in bit shift for CAP_TO_MASK
2022-11-08 12:22:02 -08:00
Nathan Chancellor
000f8870a4 vmlinux.lds.h: Fix placement of '.data..decrypted' section
Commit d4c6399900 ("vmlinux.lds.h: Avoid orphan section with !SMP")
fixed an orphan section warning by adding the '.data..decrypted' section
to the linker script under the PERCPU_DECRYPTED_SECTION define but that
placement introduced a panic with !SMP, as the percpu sections are not
instantiated with that configuration so attempting to access variables
defined with DEFINE_PER_CPU_DECRYPTED() will result in a page fault.

Move the '.data..decrypted' section to the DATA_MAIN define so that the
variables in it are properly instantiated at boot time with
CONFIG_SMP=n.

Cc: stable@vger.kernel.org
Fixes: d4c6399900 ("vmlinux.lds.h: Avoid orphan section with !SMP")
Link: https://lore.kernel.org/cbbd3548-880c-d2ca-1b67-5bb93b291d5f@huawei.com/
Debugged-by: Ard Biesheuvel <ardb@kernel.org>
Reported-by: Zhao Wenhui <zhaowenhui8@huawei.com>
Tested-by: xiafukun <xiafukun@huawei.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221108174934.3384275-1-nathan@kernel.org
2022-11-08 09:59:19 -08:00
Steven Price
c4299907c0 drm/panfrost: Remove type name from internal struct again
Commit 72655fb942 ("drm/panfrost: replace endian-specific types with
native ones") accidentally reverted part of the parent commit
7228d9d792 ("drm/panfrost: Remove type name from internal structs")
leading to the situation that the Panfrost UAPI header still doesn't
compile correctly in C++.

Revert the accidental revert and pass me a brown paper bag.

Reported-by: Alyssa Rosenzweig <alyssa@collabora.com>
Fixes: 72655fb942 ("drm/panfrost: replace endian-specific types with native ones")
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221103114036.1581854-1-steven.price@arm.com
2022-11-07 15:35:43 +00:00
Oliver Hartkopp
ae64438be1 can: dev: fix skb drop check
In commit a6d190f8c7 ("can: skb: drop tx skb if in listen only
mode") the priv->ctrlmode element is read even on virtual CAN
interfaces that do not create the struct can_priv at startup. This
out-of-bounds read may lead to CAN frame drops for virtual CAN
interfaces like vcan and vxcan.

This patch mainly reverts the original commit and adds a new helper
for CAN interface drivers that provide the required information in
struct can_priv.

Fixes: a6d190f8c7 ("can: skb: drop tx skb if in listen only mode")
Reported-by: Dariusz Stojaczyk <Dariusz.Stojaczyk@opensynergy.com>
Cc: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Cc: Max Staudt <max@enpas.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20221102095431.36831-1-socketcan@hartkopp.net
Cc: stable@vger.kernel.org # 6.0.x
[mkl: patch pch_can, too]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-11-07 14:00:27 +01:00
Jens Axboe
6dcabcd398 io_uring: fix typo in io_uring.h comment
Just a basic s/thig/this swap, fixing up a typo introduced by a commit
added in the 6.1 release.

Fixes: 9cda70f622 ("io_uring: introduce fixed buffer support for io_uring_cmd")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-06 13:17:27 -07:00
Gaosheng Cui
46653972e3 capabilities: fix undefined behavior in bit shift for CAP_TO_MASK
Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. The UBSAN warning calltrace like below:

UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2
left shift of 1 by 31 places cannot be represented in type 'int'
Call Trace:
 <TASK>
 dump_stack_lvl+0x7d/0xa5
 dump_stack+0x15/0x1b
 ubsan_epilogue+0xe/0x4e
 __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c
 cap_task_prctl+0x561/0x6f0
 security_task_prctl+0x5a/0xb0
 __x64_sys_prctl+0x61/0x8f0
 do_syscall_64+0x58/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
 </TASK>

Fixes: e338d263a7 ("Add 64-bit capability support to the kernel")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Acked-by: Andrew G. Morgan <morgan@kernel.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2022-11-05 01:25:57 -04:00
Peter Zijlstra
c86df29d11 bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)
The dispatcher function is currently abusing the ftrace __fentry__
call location for its own purposes -- this obviously gives trouble
when the dispatcher and ftrace are both in use.

A previous solution tried using __attribute__((patchable_function_entry()))
which works, except it is GCC-8+ only, breaking the build on the
earlier still supported compilers. Instead use static_call() -- which
has its own annotations and does not conflict with ftrace -- to
rewrite the dispatch function.

By using: return static_call()(ctx, insni, bpf_func) you get a perfect
forwarding tail call as function body (iow a single jmp instruction).
By having the default static_call() target be bpf_dispatcher_nop_func()
it retains the default behaviour (an indirect call to the argument
function). Only once a dispatcher program is attached is the target
rewritten to directly call the JIT'ed image.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Björn Töpel <bjorn@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lkml.kernel.org/r/Y1/oBlK0yFk5c/Im@hirez.programming.kicks-ass.net
Link: https://lore.kernel.org/bpf/20221103120647.796772565@infradead.org
2022-11-04 23:13:57 +01:00
Peter Zijlstra
18acb7fac2 bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")
Because __attribute__((patchable_function_entry)) is only available
since GCC-8 this solution fails to build on the minimum required GCC
version.

Undo these changes so we might try again -- without cluttering up the
patches with too many changes.

This is an almost complete revert of:

  dbe69b2998 ("bpf: Fix dispatcher patchable function entry to 5 bytes nop")
  ceea991a01 ("bpf: Move bpf_dispatcher function out of ftrace locations")

(notably the arch/x86/Kconfig hunk is kept).

Reported-by: David Laight <David.Laight@aculab.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Björn Töpel <bjorn@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lkml.kernel.org/r/439d8dc735bb4858875377df67f1b29a@AcuMS.aculab.com
Link: https://lore.kernel.org/bpf/20221103120647.728830733@infradead.org
2022-11-04 23:13:08 +01:00
Linus Torvalds
bd74502743 Merge tag 'hardening-v6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fix from Kees Cook:

 - Correctly report struct member size on memcpy overflow (Kees Cook)

* tag 'hardening-v6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  fortify: Capture __bos() results in const temp vars
2022-11-04 14:46:45 -07:00
Linus Torvalds
1caa2f182a Merge tag 'efi-fixes-for-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:

 - A pair of tweaks to the EFI random seed code so that externally
   provided version of this config table are handled more robustly

 - Another fix for the v6.0 EFI variable refactor that turned out to
   break Apple machines which don't provide QueryVariableInfo()

 - Add some guard rails to the EFI runtime service call wrapper so we
   can recover from synchronous exceptions caused by firmware

* tag 'efi-fixes-for-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  arm64: efi: Recover from synchronous exceptions occurring in firmware
  efi: efivars: Fix variable writes with unsupported query_variable_store()
  efi: random: Use 'ACPI reclaim' memory for random seed
  efi: random: reduce seed size to 32 bytes
  efi/tpm: Pass correct address to memblock_reserve
2022-11-04 14:37:25 -07:00
Vlastimil Babka
eb4940d4ad mm/slab: remove !CONFIG_TRACING variants of kmalloc_[node_]trace()
For !CONFIG_TRACING kernels, the kmalloc() implementation tries (in cases where
the allocation size is build-time constant) to save a function call, by
inlining kmalloc_trace() to a kmem_cache_alloc() call.

However since commit 6edf2576a6 ("mm/slub: enable debugging memory wasting of
kmalloc") this path now fails to pass the original request size to be
eventually recorded (for kmalloc caches with debugging enabled).

We could adjust the code to call __kmem_cache_alloc_node() as the
CONFIG_TRACING variant, but that would as a result inline a call with 5
parameters, bloating the kmalloc() call sites. The cost of extra function
call (to kmalloc_trace()) seems like a lesser evil.

It also appears that the !CONFIG_TRACING variant is incompatible with upcoming
hardening efforts [1] so it's easier if we just remove it now. Kernels with no
tracing are rare these days and the benefit is dubious anyway.

[1] https://lore.kernel.org/linux-mm/20221101222520.never.109-kees@kernel.org/T/#m20ecf14390e406247bde0ea9cce368f469c539ed

Link: https://lore.kernel.org/all/097d8fba-bd10-a312-24a3-a4068c4f424c@suse.cz/
Suggested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2022-11-04 14:57:21 +01:00
Jakub Kicinski
f2c24be55b Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
bpf 2022-11-04

We've added 8 non-merge commits during the last 3 day(s) which contain
a total of 10 files changed, 113 insertions(+), 16 deletions(-).

The main changes are:

1) Fix memory leak upon allocation failure in BPF verifier's stack state
   tracking, from Kees Cook.

2) Fix address leakage when BPF progs release reference to an object,
   from Youlin Li.

3) Fix BPF CI breakage from buggy in.h uapi header dependency,
   from Andrii Nakryiko.

4) Fix bpftool pin sub-command's argument parsing, from Pu Lehui.

5) Fix BPF sockmap lockdep warning by cancelling psock work outside
   of socket lock, from Cong Wang.

6) Follow-up for BPF sockmap to fix sk_forward_alloc accounting,
   from Wang Yufen.

bpf-for-netdev

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Add verifier test for release_reference()
  bpf: Fix wrong reg type conversion in release_reference()
  bpf, sock_map: Move cancel_work_sync() out of sock lock
  tools/headers: Pull in stddef.h to uapi to fix BPF selftests build in CI
  net/ipv4: Fix linux/in.h header dependencies
  bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
  bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues
  bpf, verifier: Fix memory leak in array reallocation for stack state
====================

Link: https://lore.kernel.org/r/20221104000445.30761-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-03 19:51:02 -07:00
Linus Torvalds
9521c9d6a5 Merge tag 'net-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
 "Including fixes from bluetooth and netfilter.

  Current release - regressions:

   - net: several zerocopy flags fixes

   - netfilter: fix possible memory leak in nf_nat_init()

   - openvswitch: add missing .resv_start_op

  Previous releases - regressions:

   - neigh: fix null-ptr-deref in neigh_table_clear()

   - sched: fix use after free in red_enqueue()

   - dsa: fall back to default tagger if we can't load the one from DT

   - bluetooth: fix use-after-free in l2cap_conn_del()

  Previous releases - always broken:

   - netfilter: netlink notifier might race to release objects

   - nfc: fix potential memory leak of skb

   - bluetooth: fix use-after-free caused by l2cap_reassemble_sdu

   - bluetooth: use skb_put to set length

   - eth: tun: fix bugs for oversize packet when napi frags enabled

   - eth: lan966x: fixes for when MTU is changed

   - eth: dwmac-loongson: fix invalid mdio_node"

* tag 'net-6.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
  vsock: fix possible infinite sleep in vsock_connectible_wait_data()
  vsock: remove the unused 'wait' in vsock_connectible_recvmsg()
  ipv6: fix WARNING in ip6_route_net_exit_late()
  bridge: Fix flushing of dynamic FDB entries
  net, neigh: Fix null-ptr-deref in neigh_table_clear()
  net/smc: Fix possible leaked pernet namespace in smc_init()
  stmmac: dwmac-loongson: fix invalid mdio_node
  ibmvnic: Free rwi on reset success
  net: mdio: fix undefined behavior in bit shift for __mdiobus_register
  Bluetooth: L2CAP: Fix attempting to access uninitialized memory
  Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
  Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
  Bluetooth: hci_conn: Fix not restoring ISO buffer count on disconnect
  Bluetooth: L2CAP: Fix memory leak in vhci_write
  Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
  Bluetooth: virtio_bt: Use skb_put to set length
  Bluetooth: hci_conn: Fix CIS connection dst_type handling
  Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
  netfilter: ipset: enforce documented limit to prevent allocating huge memory
  isdn: mISDN: netjet: fix wrong check of device registration
  ...
2022-11-03 10:51:59 -07:00
Linus Torvalds
4d74039149 Merge tag 'powerpc-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:

 - Fix an endian thinko in the asm-generic compat_arg_u64() which led to
   syscall arguments being swapped for some compat syscalls.

 - Fix syscall wrapper handling of syscalls with 64-bit arguments on
   32-bit kernels, which led to syscall arguments being misplaced.

 - A build fix for amdgpu on Book3E with AltiVec disabled.

Thanks to Andreas Schwab, Christian Zigotzky, and Arnd Bergmann.

* tag 'powerpc-6.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/32: Select ARCH_SPLIT_ARG64
  powerpc/32: fix syscall wrappers with 64-bit arguments
  asm-generic: compat: fix compat_arg_u64() and compat_arg_u64_dual()
  powerpc/64e: Fix amdgpu build on Book3E w/o AltiVec
2022-11-03 10:27:28 -07:00
Anirudh Rayabharam
4ad1aa5712 clocksource/drivers/hyperv: add data structure for reference TSC MSR
Add a data structure to represent the reference TSC MSR similar to
other MSRs. This simplifies the code for updating the MSR.

Signed-off-by: Anirudh Rayabharam <anrayabh@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20221027095729.1676394-2-anrayabh@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
2022-11-03 15:50:28 +00:00
Cong Wang
8bbabb3fdd bpf, sock_map: Move cancel_work_sync() out of sock lock
Stanislav reported a lockdep warning, which is caused by the
cancel_work_sync() called inside sock_map_close(), as analyzed
below by Jakub:

psock->work.func = sk_psock_backlog()
  ACQUIRE psock->work_mutex
    sk_psock_handle_skb()
      skb_send_sock()
        __skb_send_sock()
          sendpage_unlocked()
            kernel_sendpage()
              sock->ops->sendpage = inet_sendpage()
                sk->sk_prot->sendpage = tcp_sendpage()
                  ACQUIRE sk->sk_lock
                    tcp_sendpage_locked()
                  RELEASE sk->sk_lock
  RELEASE psock->work_mutex

sock_map_close()
  ACQUIRE sk->sk_lock
  sk_psock_stop()
    sk_psock_clear_state(psock, SK_PSOCK_TX_ENABLED)
    cancel_work_sync()
      __cancel_work_timer()
        __flush_work()
          // wait for psock->work to finish
  RELEASE sk->sk_lock

We can move the cancel_work_sync() out of the sock lock protection,
but still before saved_close() was called.

Fixes: 799aa7f98d ("skmsg: Avoid lock_sock() in sk_psock_backlog()")
Reported-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20221102043417.279409-1-xiyou.wangcong@gmail.com
2022-11-03 13:51:06 +01:00
Andrii Nakryiko
aec1dc972d net/ipv4: Fix linux/in.h header dependencies
__DECLARE_FLEX_ARRAY is defined in include/uapi/linux/stddef.h but
doesn't seem to be explicitly included from include/uapi/linux/in.h,
which breaks BPF selftests builds (once we sync linux/stddef.h into
tools/include directory in the next patch). Fix this by explicitly
including linux/stddef.h.

Given this affects BPF CI and bpf tree, targeting this for bpf tree.

Fixes: 5854a09b49 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/20221102182517.2675301-1-andrii@kernel.org
2022-11-03 13:44:46 +01:00
Florian Westphal
ecaf75ffd5 netlink: introduce bigendian integer types
Jakub reported that the addition of the "network_byte_order"
member in struct nla_policy increases size of 32bit platforms.

Instead of scraping the bit from elsewhere Johannes suggested
to add explicit NLA_BE types instead, so do this here.

NLA_POLICY_MAX_BE() macro is removed again, there is no need
for it: NLA_POLICY_MAX(NLA_BE.., ..) will do the right thing.

NLA_BE64 can be added later.

Fixes: 08724ef699 ("netlink: introduce NLA_POLICY_MAX_BE")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Suggested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20221031123407.9158-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-11-01 21:29:06 -07:00