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  1. Apr 02, 2022
  3. Apr 01, 2022
    • Linus Torvalds's avatar
      Merge tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml · e8b767f5
      Linus Torvalds authored 
      Pull UML updates from Richard Weinberger:

 - Devicetree support (for testing)

 - Various cleanups and fixes: UBD, port_user, uml_mconsole

 - Maintainer update

* tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: run_helper: Write error message to kernel log on exec failure on host
  um: port_user: Improve error handling when port-helper is not found
  um: port_user: Allow setting path to port-helper using UML_PORT_HELPER envvar
  um: port_user: Search for in.telnetd in PATH
  um: clang: Strip out -mno-global-merge from USER_CFLAGS
  docs: UML: Mention telnetd for port channel
  um: Remove unused timeval_to_ns() function
  um: Fix uml_mconsole stop/go
  um: Cleanup syscall_handler_t definition/cast, fix warning
  uml: net: vector: fix const issue
  um: Fix WRITE_ZEROES in the UBD Driver
  um: Migrate vector drivers to NAPI
  um: Fix order of dtb unflatten/early init
  um: fix and optimize xor select template for CONFIG64 and timetravel mode
  um: Document dtb command line option
  lib/logic_iomem: correct fallback config references
  um: Remove duplicated include in syscalls_64.c
  MAINTAINERS: Update UserModeLinux entry
      e8b767f5
    • Linus Torvalds's avatar
      Merge tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs · a87a08e3
      Linus Torvalds authored 
      Pull JFFS2, UBI and UBIFS updates from Richard Weinberger:
 "JFFS2:
   - Fixes for various memory issues

  UBI:
   - Fix for a race condition in cdev ioctl handler

  UBIFS:
   - Fixes for O_TMPFILE and whiteout handling

   - Fixes for various memory issues"

* tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubifs: rename_whiteout: correct old_dir size computing
  jffs2: fix memory leak in jffs2_scan_medium
  jffs2: fix memory leak in jffs2_do_mount_fs
  jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
  fs/jffs2: fix comments mentioning i_mutex
  ubi: fastmap: Return error code if memory allocation fails in add_aeb()
  ubifs: Fix to add refcount once page is set private
  ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
  ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
  ubifs: Rectify space amount budget for mkdir/tmpfile operations
  ubifs: Fix 'ui->dirty' race between do_tmpfile() and writeback work
  ubifs: Rename whiteout atomically
  ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
  ubifs: Fix wrong number of inodes locked by ui_mutex in ubifs_inode comment
  ubifs: Fix deadlock in concurrent rename whiteout and inode writeback
  ubifs: rename_whiteout: Fix double free for whiteout_ui->data
  ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl
      a87a08e3
    • Linus Torvalds's avatar
      Merge tag 'gfs2-v5.17-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 · 3d198e42
      Linus Torvalds authored 
      Pull gfs2 fixes from Andreas Gruenbacher:

 - To avoid deadlocks, actively cancel dlm locking requests when we give
   up on them.

   Further dlm operations on the same lock will return -EBUSY until the
   cancel has been completed, so in that case, wait and repeat. (This is
   rare.)

 - Lock inversion fixes in gfs2_inode_lookup() and gfs2_create_inode().

 - Some more fallout from the gfs2 mmap + page fault deadlock fixes
   (merged in commit c03098d4: "Merge tag 'gfs2-v5.15-rc5-mmap-fault'").

 - Various other minor bug fixes and cleanups.

* tag 'gfs2-v5.17-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: Make sure FITRIM minlen is rounded up to fs block size
  gfs2: Make sure not to return short direct writes
  gfs2: Remove dead code in gfs2_file_read_iter
  gfs2: Fix gfs2_file_buffered_write endless loop workaround
  gfs2: Minor retry logic cleanup
  gfs2: Disable page faults during lockless buffered reads
  gfs2: Fix should_fault_in_pages() logic
  gfs2: Remove return value for gfs2_indirect_init
  gfs2: Initialize gh_error in gfs2_glock_nq
  gfs2: Make use of list_is_first
  gfs2: Switch lock order of inode and iopen glock
  gfs2: cancel timed-out glock requests
  gfs2: Expect -EBUSY after canceling dlm locking requests
  gfs2: gfs2_setattr_size error path fix
  gfs2: assign rgrp glock before compute_bitstructs
      3d198e42
    • Linus Torvalds's avatar
      Merge tag 'netfs-prep-20220318' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · f008b1d6
      Linus Torvalds authored 
      Pull netfs updates from David Howells:
 "Netfs prep for write helpers.

  Having had a go at implementing write helpers and content encryption
  support in netfslib, it seems that the netfs_read_{,sub}request
  structs and the equivalent write request structs were almost the same
  and so should be merged, thereby requiring only one set of
  alloc/get/put functions and a common set of tracepoints.

  Merging the structs also has the advantage that if a bounce buffer is
  added to the request struct, a read operation can be performed to fill
  the bounce buffer, the contents of the buffer can be modified and then
  a write operation can be performed on it to send the data wherever it
  needs to go using the same request structure all the way through. The
  I/O handlers would then transparently perform any required crypto.
  This should make it easier to perform RMW cycles if needed.

  The potentially common functions and structs, however, by their names
  all proclaim themselves to be associated with the read side of things.

  The bulk of these changes alter this in the following ways:

   - Rename struct netfs_read_{,sub}request to netfs_io_{,sub}request.

   - Rename some enums, members and flags to make them more appropriate.

   - Adjust some comments to match.

   - Drop "read"/"rreq" from the names of common functions. For
     instance, netfs_get_read_request() becomes netfs_get_request().

   - The ->init_rreq() and ->issue_op() methods become ->init_request()
     and ->issue_read(). I've kept the latter as a read-specific
     function and in another branch added an ->issue_write() method.

  The driver source is then reorganised into a number of files:

        fs/netfs/buffered_read.c        Create read reqs to the pagecache
        fs/netfs/io.c                   Dispatchers for read and write reqs
        fs/netfs/main.c                 Some general miscellaneous bits
        fs/netfs/objects.c              Alloc, get and put functions
        fs/netfs/stats.c                Optional procfs statistics.

  and future development can be fitted into this scheme, e.g.:

        fs/netfs/buffered_write.c       Modify the pagecache
        fs/netfs/buffered_flush.c       Writeback from the pagecache
        fs/netfs/direct_read.c          DIO read support
        fs/netfs/direct_write.c         DIO write support
        fs/netfs/unbuffered_write.c     Write modifications directly back

  Beyond the above changes, there are also some changes that affect how
  things work:

   - Make fscache_end_operation() generally available.

   - In the netfs tracing header, generate enums from the symbol ->
     string mapping tables rather than manually coding them.

   - Add a struct for filesystems that uses netfslib to put into their
     inode wrapper structs to hold extra state that netfslib is
     interested in, such as the fscache cookie. This allows netfslib
     functions to be set in filesystem operation tables and jumped to
     directly without having to have a filesystem wrapper.

   - Add a member to the struct added above to track the remote inode
     length as that may differ if local modifications are buffered. We
     may need to supply an appropriate EOF pointer when storing data (in
     AFS for example).

   - Pass extra information to netfs_alloc_request() so that the
     ->init_request() hook can access it and retain information to
     indicate the origin of the operation.

   - Make the ->init_request() hook return an error, thereby allowing a
     filesystem that isn't allowed to cache an inode (ceph or cifs, for
     example) to skip readahead.

   - Switch to using refcount_t for subrequests and add tracepoints to
     log refcount changes for the request and subrequest structs.

   - Add a function to consolidate dispatching a read request. Similar
     code is used in three places and another couple are likely to be
     added in the future"

Link: https://lore.kernel.org/all/2639515.1648483225@warthog.procyon.org.uk/

* tag 'netfs-prep-20220318' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Maintain netfs_i_context::remote_i_size
  netfs: Keep track of the actual remote file size
  netfs: Split some core bits out into their own file
  netfs: Split fs/netfs/read_helper.c
  netfs: Rename read_helper.c to io.c
  netfs: Prepare to split read_helper.c
  netfs: Add a function to consolidate beginning a read
  netfs: Add a netfs inode context
  ceph: Make ceph_init_request() check caps on readahead
  netfs: Change ->init_request() to return an error code
  netfs: Refactor arguments for netfs_alloc_read_request
  netfs: Adjust the netfs_failure tracepoint to indicate non-subreq lines
  netfs: Trace refcounting on the netfs_io_subrequest struct
  netfs: Trace refcounting on the netfs_io_request struct
  netfs: Adjust the netfs_rreq tracepoint slightly
  netfs: Split netfs_io_* object handling out
  netfs: Finish off rename of netfs_read_request to netfs_io_request
  netfs: Rename netfs_read_*request to netfs_io_*request
  netfs: Generate enums from trace symbol mapping lists
  fscache: export fscache_end_operation()
      f008b1d6
    • Linus Torvalds's avatar
      Merge tag 'random-5.18-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random · 478f74a3
      Linus Torvalds authored 
      Pull random number generator fixes from Jason Donenfeld:

 - If a hardware random number generator passes a sufficiently large
   chunk of entropy to random.c during early boot, we now skip the
   "fast_init" business and let it initialize the RNG.

   This makes CONFIG_RANDOM_TRUST_BOOTLOADER=y actually useful.

 - We already have the command line `random.trust_cpu=0/1` option for
   RDRAND, which let distros enable CONFIG_RANDOM_TRUST_CPU=y while
   placating concerns of more paranoid users.

   Now we add `random.trust_bootloader=0/1` so that distros can
   similarly enable CONFIG_RANDOM_TRUST_BOOTLOADER=y.

 - Re-add a comment that got removed by accident in the recent revert.

 - Add the spec-compliant ACPI CID for vmgenid, which Microsoft added to
   the vmgenid spec at Ard's request during earlier review.

 - Restore build-time randomness via the latent entropy plugin, which
   was lost when we transitioned to using a hash function.

* tag 'random-5.18-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  random: mix build-time latent entropy into pool at init
  virt: vmgenid: recognize new CID added by Hyper-V
  random: re-add removed comment about get_random_{u32,u64} reseeding
  random: treat bootloader trust toggle the same way as cpu trust toggle
  random: skip fast_init if hwrng provides large chunk of entropy
      478f74a3
    • Linus Torvalds's avatar
      Merge tag 'linux-watchdog-5.18-rc1' of git://www.linux-watchdog.org/linux-watchdog · 354b8bf2
      Linus Torvalds authored 
      Pull watchdog updates from Wim Van Sebroeck:

 - add support for BCM4908

 - renesas_wdt: add R-Car Gen4 support

 - improve watchdog_dev function documentation

 - sp5100_tco: replace the cd6h/cd7h port I/O with MMIO accesses during
   initialization

 - several other small improvements and fixes

* tag 'linux-watchdog-5.18-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  Watchdog: sp5100_tco: Enable Family 17h+ CPUs
  Watchdog: sp5100_tco: Add initialization using EFCH MMIO
  Watchdog: sp5100_tco: Refactor MMIO base address initialization
  Watchdog: sp5100_tco: Move timer initialization into function
  watchdog: ixp4xx: Implement restart
  watchdog: orion_wdt: support pretimeout on Armada-XP
  watchdog: allow building BCM7038_WDT for BCM4908
  watchdog: renesas_wdt: Add R-Car Gen4 support
  dt-bindings: watchdog: renesas-wdt: Document r8a779f0 support
  watchdog: Improve watchdog_dev function documentation
  watchdog: aspeed: add nowayout support
  watchdog: rti-wdt: Add missing pm_runtime_disable() in probe function
  watchdog: imx2_wdg: Alow ping on suspend
      354b8bf2
    • Linus Torvalds's avatar
      Merge tag 'auxdisplay-for-linus-v5.18-rc1' of https://github.com/ojeda/linux · d4f1db77
      Linus Torvalds authored 
      Pull auxdisplay updates from Miguel Ojeda:
 "A few auxdisplay lcd2s improvements from Andy Shevchenko"

* tag 'auxdisplay-for-linus-v5.18-rc1' of https://github.com/ojeda/linux:
  auxdisplay: lcd2s: Use array size explicitly in lcd2s_gotoxy()
  auxdisplay: lcd2s: Switch to i2c ->probe_new()
  auxdisplay: lcd2s: use module_i2c_driver to simplify the code
  auxdisplay: lcd2s: make use of device property API
  auxdisplay: lcd2s: Fix multi-line comment style
      d4f1db77
    • Linus Torvalds's avatar
      Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost · f4f5d7cf
      Linus Torvalds authored 
      Pull virtio updates from Michael Tsirkin:

 - vdpa generic device type support

 - more virtio hardening for broken devices (but on the same theme,
   revert some virtio hotplug hardening patches - they were misusing
   some interrupt flags and had to be reverted)

 - RSS support in virtio-net

 - max device MTU support in mlx5 vdpa

 - akcipher support in virtio-crypto

 - shared IRQ support in ifcvf vdpa

 - a minor performance improvement in vhost

 - enable virtio mem for ARM64

 - beginnings of advance dma support

 - cleanups, fixes all over the place

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (33 commits)
  vdpa/mlx5: Avoid processing works if workqueue was destroyed
  vhost: handle error while adding split ranges to iotlb
  vdpa: support exposing the count of vqs to userspace
  vdpa: change the type of nvqs to u32
  vdpa: support exposing the config size to userspace
  vdpa/mlx5: re-create forwarding rules after mac modified
  virtio: pci: check bar values read from virtio config space
  Revert "virtio_pci: harden MSI-X interrupts"
  Revert "virtio-pci: harden INTX interrupts"
  drivers/net/virtio_net: Added RSS hash report control.
  drivers/net/virtio_net: Added RSS hash report.
  drivers/net/virtio_net: Added basic RSS support.
  drivers/net/virtio_net: Fixed padded vheader to use v1 with hash.
  virtio: use virtio_device_ready() in virtio_device_restore()
  tools/virtio: compile with -pthread
  tools/virtio: fix after premapped buf support
  virtio_ring: remove flags check for unmap packed indirect desc
  virtio_ring: remove flags check for unmap split indirect desc
  virtio_ring: rename vring_unmap_state_packed() to vring_unmap_extra_packed()
  net/mlx5: Add support for configuring max device MTU
  ...
      f4f5d7cf
    • Jason A. Donenfeld's avatar
      random: mix build-time latent entropy into pool at init · 1754abb3
      Jason A. Donenfeld authored 
      Prior, the "input_pool_data" array needed no real initialization, and so
it was easy to mark it with __latent_entropy to populate it during
compile-time. In switching to using a hash function, this required us to
specifically initialize it to some specific state, which means we
dropped the __latent_entropy attribute. An unfortunate side effect was
this meant the pool was no longer seeded using compile-time random data.
In order to bring this back, we declare an array in rand_initialize()
with __latent_entropy and call mix_pool_bytes() on that at init, which
accomplishes the same thing as before. We make this __initconst, so that
it doesn't take up space at runtime after init.

Fixes: 6e8ec255

 ("random: use computational hash for entropy extraction")
Reviewed-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
Reviewed-by: default avatarTheodore Ts'o <tytso@mit.edu>
Signed-off-by: default avatarJason A. Donenfeld <Jason@zx2c4.com>
      1754abb3
    • Linus Torvalds's avatar
      Merge tag 'acpi-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · e729dbe8
      Linus Torvalds authored 
      Pull more ACPI updates from Rafael Wysocki:
 "These are fixes and cleanup on top of the previously merged ACPI
  material.

  Specifics:

   - Avoid out-of-bounds access when parsing _CPC data (Rafael Wysocki)

   - Change default error code and clean up debug messages in ACPI CPPC
     probe (Rafael Wysocki)

   - Replace usage of found with dedicated list iterator variable in the
     ACPI IPMI driver (Jakob Koschel)

   - Clean up variable name confusion in APEI (Jakob Koschel)

   - Make LAPIC_ADDR_OVR address readable in a message parsed during
     MADT parsing (Vasant Hegde)"

* tag 'acpi-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Change default error code and clean up debug messages in probe
  ACPI: CPPC: Avoid out of bounds access when parsing _CPC data
  ACPI: tables: Make LAPIC_ADDR_OVR address readable in message
  ACPI: IPMI: replace usage of found with dedicated list iterator variable
  ACPI, APEI: Use the correct variable for sizeof()
      e729dbe8
    • Linus Torvalds's avatar
      Merge tag 'docs-5.18-2' of git://git.lwn.net/linux · b4a5ea09
      Linus Torvalds authored 
      Pull more documentation updates from Jonathan Corbet:
 "Some late-arriving documentation improvements.

  This is mostly build-system fixes from Mauro and Akira; I also took
  the liberty of dropping in my 'messy diffstat' document"

* tag 'docs-5.18-2' of git://git.lwn.net/linux:
  docs: Add a document on how to fix a messy diffstat
  docs: sphinx/requirements: Limit jinja2<3.1
  Documentation: kunit: Fix cross-referencing warnings
  scripts/kernel-doc: change the line number meta info
  scripts/get_abi: change the file/line number meta info
  docs: kernel_include.py: add sphinx build dependencies
  docs: kernel_abi.py: add sphinx build dependencies
  docs: kernel_feat.py: add build dependencies
  scripts/get_feat.pl: allow output the parsed file names
  docs: kfigure.py: Don't warn of missing PDF converter in 'make htmldocs'
  Documentation: Fix duplicate statement about raw_spinlock_t type
      b4a5ea09
    • Linus Torvalds's avatar
      Merge tag 'kbuild-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild · b8321ed4
      Linus Torvalds authored 
      Pull Kbuild updates from Masahiro Yamada:

 - Add new environment variables, USERCFLAGS and USERLDFLAGS to allow
   additional flags to be passed to user-space programs.

 - Fix missing fflush() bugs in Kconfig and fixdep

 - Fix a minor bug in the comment format of the .config file

 - Make kallsyms ignore llvm's local labels, .L*

 - Fix UAPI compile-test for cross-compiling with Clang

 - Extend the LLVM= syntax to support LLVM=<suffix> form for using a
   particular version of LLVm, and LLVM=<prefix> form for using custom
   LLVM in a particular directory path.

 - Clean up Makefiles

* tag 'kbuild-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: Make $(LLVM) more flexible
  kbuild: add --target to correctly cross-compile UAPI headers with Clang
  fixdep: use fflush() and ferror() to ensure successful write to files
  arch: syscalls: simplify uapi/kapi directory creation
  usr/include: replace extra-y with always-y
  certs: simplify empty certs creation in certs/Makefile
  certs: include certs/signing_key.x509 unconditionally
  kallsyms: ignore all local labels prefixed by '.L'
  kconfig: fix missing '# end of' for empty menu
  kconfig: add fflush() before ferror() check
  kbuild: replace $(if A,A,B) with $(or A,B)
  kbuild: Add environment variables for userprogs flags
  kbuild: unify cmd_copy and cmd_shipped
      b8321ed4
    • Linus Torvalds's avatar
      Merge tag 'hardening-v5.18-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux · f87cbd05
      Linus Torvalds authored 
      Pull hardening updates from Kees Cook:
 "This addresses an -Warray-bounds warning found under a few ARM
  defconfigs, and disables long-broken HARDENED_USERCOPY_PAGESPAN"

* tag 'hardening-v5.18-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  ARM/dma-mapping: Remove CMA code when not built with CMA
  usercopy: Disable CONFIG_HARDENED_USERCOPY_PAGESPAN
      f87cbd05
    • Andrew Price's avatar
      gfs2: Make sure FITRIM minlen is rounded up to fs block size · 27ca8273
      Andrew Price authored 
      Per fstrim(8) we must round up the minlen argument to the fs block size.
The current calculation doesn't take into account devices that have a
discard granularity and requested minlen less than 1 fs block, so the
value can get shifted away to zero in the translation to fs blocks.

The zero minlen passed to gfs2_rgrp_send_discards() then allows
sb_issue_discard() to be called with nr_sects == 0 which returns -EINVAL
and results in gfs2_rgrp_send_discards() returning -EIO.

Make sure minlen is never < 1 fs block by taking the max of the
requested minlen and the fs block size before comparing to the device's
discard granularity and shifting to fs blocks.

Fixes: 076f0faa

 ("GFS2: Fix FITRIM argument handling")
Signed-off-by: default avatarAndrew Price <anprice@redhat.com>
Signed-off-by: default avatarAndreas Gruenbacher <agruenba@redhat.com>
      27ca8273
    • Linus Torvalds's avatar
      Merge tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 2975dbdc
      Linus Torvalds authored 
      Pull more networking updates from Jakub Kicinski:
 "Networking fixes and rethook patches.

  Features:

   - kprobes: rethook: x86: replace kretprobe trampoline with rethook

  Current release - regressions:

   - sfc: avoid null-deref on systems without NUMA awareness in the new
     queue sizing code

  Current release - new code bugs:

   - vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices

   - eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl when
     interface is down

  Previous releases - always broken:

   - openvswitch: correct neighbor discovery target mask field in the
     flow dump

   - wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak

   - rxrpc: fix call timer start racing with call destruction

   - rxrpc: fix null-deref when security type is rxrpc_no_security

   - can: fix UAF bugs around echo skbs in multiple drivers

  Misc:

   - docs: move netdev-FAQ to the 'process' section of the
     documentation"

* tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
  vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices
  openvswitch: Add recirc_id to recirc warning
  rxrpc: fix some null-ptr-deref bugs in server_key.c
  rxrpc: Fix call timer start racing with call destruction
  net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware
  net: hns3: fix the concurrency between functions reading debugfs
  docs: netdev: move the netdev-FAQ to the process pages
  docs: netdev: broaden the new vs old code formatting guidelines
  docs: netdev: call out the merge window in tag checking
  docs: netdev: add missing back ticks
  docs: netdev: make the testing requirement more stringent
  docs: netdev: add a question about re-posting frequency
  docs: netdev: rephrase the 'should I update patchwork' question
  docs: netdev: rephrase the 'Under review' question
  docs: netdev: shorten the name and mention msgid for patch status
  docs: netdev: note that RFC postings are allowed any time
  docs: netdev: turn the net-next closed into a Warning
  docs: netdev: move the patch marking section up
  docs: netdev: minor reword
  docs: netdev: replace references to old archives
  ...
      2975dbdc
    • Kees Cook's avatar
      ARM/dma-mapping: Remove CMA code when not built with CMA · 229a08a4
      Kees Cook authored 
      The MAX_CMA_AREAS could be set to 0, which would result in code that would
attempt to operate beyond the end of a zero-sized array. If CONFIG_CMA
is disabled, just remove this code entirely. Found when building arm
on GCC 10.x for several defconfigs (e.g. axm55xx_defconfig) under
-Warray-bounds:

arch/arm/mm/dma-mapping.c:396:22: warning: array subscript <unknown> is outside array bounds of 'struct dma_contig_early_reserve[0]' [-Warray-bounds]
  396 |         dma_mmu_remap[dma_mmu_remap_num].size = size;
      |         ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
arch/arm/mm/dma-mapping.c:389:40: note: while referencing 'dma_mmu_remap'
  389 | static struct dma_contig_early_reserve dma_mmu_remap[MAX_CMA_AREAS] __initdata;
      |                                        ^~~~~~~~~~~~~

Cc: Russell King <linux@armlinux.org.uk>
Cc: Logan Gunthorpe <logang@deltatee.com>
Cc: Martin Oliveira <martin.oliveira@eideticom.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/all/6243ee60.1c69fb81.16de6.7dbf@mx.google.com/


Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/lkml/20220310070041.GA24874@lst.de


Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/lkml/9059fa71-330f-f04f-b155-2850abb72a71@redhat.com
      229a08a4
    • Linus Torvalds's avatar
      Merge tag 'v5.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 93235e3d
      Linus Torvalds authored 
      Pull crypto fixes from Herbert Xu:

 - Missing Kconfig dependency on arm that leads to boot failure

 - x86 SLS fixes

 - Reference leak in the stm32 driver

* tag 'v5.18-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: x86/sm3 - Fixup SLS
  crypto: x86/poly1305 - Fixup SLS
  crypto: x86/chacha20 - Avoid spurious jumps to other functions
  crypto: stm32 - fix reference leak in stm32_crc_remove
  crypto: arm/aes-neonbs-cbc - Select generic cbc and aes
      93235e3d
    • Rafael J. Wysocki's avatar
      Merge branches 'acpi-ipmi', 'acpi-tables' and 'acpi-apei' · 4a13e559
      Rafael J. Wysocki authored 
      Merge IMPI driver changes, ACPI tables parsing code changes and
additional APEI changes for v5.18-rc1:

 - Replace usage of found with dedicated list iterator variable
   in the ACPI IPMI driver (Jakob Koschel).

 - Make LAPIC_ADDR_OVR address readable in a message parsed during
   MADT parsing (Vasant Hegde).

 - Clean up variable name confusion in APEI (Jakob Koschel).

* acpi-ipmi:
  ACPI: IPMI: replace usage of found with dedicated list iterator variable

* acpi-tables:
  ACPI: tables: Make LAPIC_ADDR_OVR address readable in message

* acpi-apei:
  ACPI, APEI: Use the correct variable for sizeof()
      4a13e559
  5. Mar 31, 2022
    • Eric Dumazet's avatar
      vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices · 9d570741
      Eric Dumazet authored 
      vxlan_vnifilter_dump_dev() assumes it is called only
for vxlan devices. Make sure it is the case.

BUG: KASAN: slab-out-of-bounds in vxlan_vnifilter_dump_dev+0x9a0/0xb40 drivers/net/vxlan/vxlan_vnifilter.c:349
Read of size 4 at addr ffff888060d1ce70 by task syz-executor.3/17662

CPU: 0 PID: 17662 Comm: syz-executor.3 Tainted: G        W         5.17.0-syzkaller-12888-g77c9387c0c5b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0xeb/0x495 mm/kasan/report.c:313
 print_report mm/kasan/report.c:429 [inline]
 kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491
 vxlan_vnifilter_dump_dev+0x9a0/0xb40 drivers/net/vxlan/vxlan_vnifilter.c:349
 vxlan_vnifilter_dump+0x3ff/0x650 drivers/net/vxlan/vxlan_vnifilter.c:428
 netlink_dump+0x4b5/0xb70 net/netlink/af_netlink.c:2270
 __netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2375
 netlink_dump_start include/linux/netlink.h:245 [inline]
 rtnetlink_rcv_msg+0x70c/0xb80 net/core/rtnetlink.c:5953
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x6e2/0x800 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f87b8e89049

Fixes: f9c4bb0b

 ("vxlan: vni filtering support on collect metadata device")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
Acked-by: default avatarRoopa Prabhu <roopa@nvidia.com>
Link: https://lore.kernel.org/r/20220330194643.2706132-1-eric.dumazet@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      9d570741
    • Stéphane Graber's avatar
      openvswitch: Add recirc_id to recirc warning · ea07af2e
      Stéphane Graber authored 
      

When hitting the recirculation limit, the kernel would currently log
something like this:

[   58.586597] openvswitch: ovs-system: deferred action limit reached, drop recirc action

Which isn't all that useful to debug as we only have the interface name
to go on but can't track it down to a specific flow.

With this change, we now instead get:

[   58.586597] openvswitch: ovs-system: deferred action limit reached, drop recirc action (recirc_id=0x9e)

Which can now be correlated with the flow entries from OVS.

Suggested-by: default avatarFrode Nordahl <frode.nordahl@canonical.com>
Signed-off-by: default avatarStéphane Graber <stgraber@ubuntu.com>
Tested-by: default avatarStephane Graber <stgraber@ubuntu.com>
Acked-by: default avatarEelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/20220330194244.3476544-1-stgraber@ubuntu.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      ea07af2e
    • Jakub Kicinski's avatar
      Merge tag 'linux-can-fixes-for-5.18-20220331' of... · 46b55620
      Jakub Kicinski authored 
      Merge tag 'linux-can-fixes-for-5.18-20220331' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2022-03-31

The first patch is by Oliver Hartkopp and fixes MSG_PEEK feature in
the CAN ISOTP protocol (broken in net-next for v5.18 only).

Tom Rix's patch for the mcp251xfd driver fixes the propagation of an
error value in case of an error.

A patch by me for the m_can driver fixes a use-after-free in the xmit
handler for m_can IP cores v3.0.x.

Hangyu Hua contributes 3 patches fixing the same double free in the
error path of the xmit handler in the ems_usb, usb_8dev and mcba_usb
USB CAN driver.

Pavel Skripkin contributes a patch for the mcba_usb driver to properly
check the endpoint type.

The last patch is by me and fixes a mem leak in the gs_usb, which was
introduced in net-next for v5.18.

* tag 'linux-can-fixes-for-5.18-20220331' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: gs_usb: gs_make_candev(): fix memory leak for devices with extended bit timing configuration
  can: mcba_usb: properly check endpoint type
  can: mcba_usb: mcba_usb_start_xmit(): fix double dev_kfree_skb in error path
  can: usb_8dev: usb_8dev_start_xmit(): fix double dev_kfree_skb() in error path
  can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
  can: m_can: m_can_tx_handler(): fix use after free of skb
  can: mcp251xfd: mcp251xfd_register_get_dev_id(): fix return of error value
  can: isotp: restore accidentally removed MSG_PEEK feature
====================

Link: https://lore.kernel.org/r/


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      46b55620
    • Xiaolong Huang's avatar
      rxrpc: fix some null-ptr-deref bugs in server_key.c · ff8376ad
      Xiaolong Huang authored 
      

Some function calls are not implemented in rxrpc_no_security, there are
preparse_server_key, free_preparse_server_key and destroy_server_key.
When rxrpc security type is rxrpc_no_security, user can easily trigger a
null-ptr-deref bug via ioctl. So judgment should be added to prevent it

The crash log:
user@syzkaller:~$ ./rxrpc_preparse_s
[   37.956878][T15626] BUG: kernel NULL pointer dereference, address: 0000000000000000
[   37.957645][T15626] #PF: supervisor instruction fetch in kernel mode
[   37.958229][T15626] #PF: error_code(0x0010) - not-present page
[   37.958762][T15626] PGD 4aadf067 P4D 4aadf067 PUD 4aade067 PMD 0
[   37.959321][T15626] Oops: 0010 [#1] PREEMPT SMP
[   37.959739][T15626] CPU: 0 PID: 15626 Comm: rxrpc_preparse_ Not tainted 5.17.0-01442-gb47d5a4f6b8d #43
[   37.960588][T15626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014
[   37.961474][T15626] RIP: 0010:0x0
[   37.961787][T15626] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   37.962480][T15626] RSP: 0018:ffffc9000d9abdc0 EFLAGS: 00010286
[   37.963018][T15626] RAX: ffffffff84335200 RBX: ffff888012a1ce80 RCX: 0000000000000000
[   37.963727][T15626] RDX: 0000000000000000 RSI: ffffffff84a736dc RDI: ffffc9000d9abe48
[   37.964425][T15626] RBP: ffffc9000d9abe48 R08: 0000000000000000 R09: 0000000000000002
[   37.965118][T15626] R10: 000000000000000a R11: f000000000000000 R12: ffff888013145680
[   37.965836][T15626] R13: 0000000000000000 R14: ffffffffffffffec R15: ffff8880432aba80
[   37.966441][T15626] FS:  00007f2177907700(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000
[   37.966979][T15626] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.967384][T15626] CR2: ffffffffffffffd6 CR3: 000000004aaf1000 CR4: 00000000000006f0
[   37.967864][T15626] Call Trace:
[   37.968062][T15626]  <TASK>
[   37.968240][T15626]  rxrpc_preparse_s+0x59/0x90
[   37.968541][T15626]  key_create_or_update+0x174/0x510
[   37.968863][T15626]  __x64_sys_add_key+0x139/0x1d0
[   37.969165][T15626]  do_syscall_64+0x35/0xb0
[   37.969451][T15626]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[   37.969824][T15626] RIP: 0033:0x43a1f9

Signed-off-by: default avatarXiaolong Huang <butterflyhuangxx@gmail.com>
Tested-by: default avatarXiaolong Huang <butterflyhuangxx@gmail.com>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Acked-by: default avatarMarc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: http://lists.infradead.org/pipermail/linux-afs/2022-March/005069.html
Fixes: 12da59fc ("rxrpc: Hand server key parsing off to the security class")
Link: https://lore.kernel.org/r/164865013439.2941502.8966285221215590921.stgit@warthog.procyon.org.uk


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      ff8376ad
    • David Howells's avatar
      rxrpc: Fix call timer start racing with call destruction · 4a7f62f9
      David Howells authored 
      The rxrpc_call struct has a timer used to handle various timed events
relating to a call.  This timer can get started from the packet input
routines that are run in softirq mode with just the RCU read lock held.
Unfortunately, because only the RCU read lock is held - and neither ref or
other lock is taken - the call can start getting destroyed at the same time
a packet comes in addressed to that call.  This causes the timer - which
was already stopped - to get restarted.  Later, the timer dispatch code may
then oops if the timer got deallocated first.

Fix this by trying to take a ref on the rxrpc_call struct and, if
successful, passing that ref along to the timer.  If the timer was already
running, the ref is discarded.

The timer completion routine can then pass the ref along to the call's work
item when it queues it.  If the timer or work item where already
queued/running, the extra ref is discarded.

Fixes: a158bdd3

 ("rxrpc: Fix call timeouts")
Reported-by: default avatarMarc Dionne <marc.dionne@auristor.com>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Reviewed-by: default avatarMarc Dionne <marc.dionne@auristor.com>
Tested-by: default avatarMarc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: http://lists.infradead.org/pipermail/linux-afs/2022-March/005073.html
Link: https://lore.kernel.org/r/164865115696.2943015.11097991776647323586.stgit@warthog.procyon.org.uk


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      4a7f62f9
    • Paolo Abeni's avatar
      Merge branch 'net-hns3-add-two-fixes-for-net' · e74e0244
      Paolo Abeni authored 
      Guangbin Huang says:

====================
net: hns3: add two fixes for -net

This series adds two fixes for the HNS3 ethernet driver.
====================

Link: https://lore.kernel.org/r/20220330134506.36635-1-huangguangbin2@huawei.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      e74e0244