Commit Graph

1043246 Commits

Author SHA1 Message Date
Linus Torvalds
bb19237bf6 Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "Thirty-three fixes, I'm afraid.

  Essentially the build up from the last couple of weeks while I've been
  dealling with Linux Plumbers conference infrastructure issues. It's
  mostly the usual assortment of spelling fixes and minor corrections.

  The only core relevant changes are to the sd driver to reduce the spin
  up message spew and fix a small memory leak on the freeing path"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (33 commits)
  scsi: ses: Retry failed Send/Receive Diagnostic commands
  scsi: target: Fix spelling mistake "CONFLIFT" -> "CONFLICT"
  scsi: lpfc: Fix gcc -Wstringop-overread warning, again
  scsi: lpfc: Use correct scnprintf() limit
  scsi: lpfc: Fix sprintf() overflow in lpfc_display_fpin_wwpn()
  scsi: core: Remove 'current_tag'
  scsi: acornscsi: Remove tagged queuing vestiges
  scsi: fas216: Kill scmd->tag
  scsi: qla2xxx: Restore initiator in dual mode
  scsi: ufs: core: Unbreak the reset handler
  scsi: sd_zbc: Support disks with more than 2**32 logical blocks
  scsi: ufs: core: Revert "scsi: ufs: Synchronize SCSI and UFS error handling"
  scsi: bsg: Fix device unregistration
  scsi: sd: Make sd_spinup_disk() less noisy
  scsi: ufs: ufs-pci: Fix Intel LKF link stability
  scsi: mpt3sas: Clean up some inconsistent indenting
  scsi: megaraid: Clean up some inconsistent indenting
  scsi: sr: Fix spelling mistake "does'nt" -> "doesn't"
  scsi: Remove SCSI CDROM MAINTAINERS entry
  scsi: megaraid: Fix Coccinelle warning
  ...
2021-09-25 16:05:56 -07:00
Linus Torvalds
f6f360aef0 Merge tag 'io_uring-5.15-2021-09-25' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
 "This one looks a bit bigger than it is, but that's mainly because 2/3
  of it is enabling IORING_OP_CLOSE to close direct file descriptors.

  We've had a few folks using them and finding it confusing that the way
  to close them is through using -1 for file update, this just brings
  API symmetry for direct descriptors. Hence I think we should just do
  this now and have a better API for 5.15 release. There's some room for
  de-duplicating the close code, but we're leaving that for the next
  merge window.

  Outside of that, just small fixes:

   - Poll race fixes (Hao)

   - io-wq core dump exit fix (me)

   - Reschedule around potentially intensive tctx and buffer iterators
     on teardown (me)

   - Fix for always ending up punting files update to io-wq (me)

   - Put the provided buffer meta data under memcg accounting (me)

   - Tweak for io_write(), removing dead code that was added with the
     iterator changes in this release (Pavel)"

* tag 'io_uring-5.15-2021-09-25' of git://git.kernel.dk/linux-block:
  io_uring: make OP_CLOSE consistent with direct open
  io_uring: kill extra checks in io_write()
  io_uring: don't punt files update to io-wq unconditionally
  io_uring: put provided buffer meta data under memcg accounting
  io_uring: allow conditional reschedule for intensive iterators
  io_uring: fix potential req refcount underflow
  io_uring: fix missing set of EPOLLONESHOT for CQ ring overflow
  io_uring: fix race between poll completion and cancel_hash insertion
  io-wq: ensure we exit if thread group is exiting
2021-09-25 15:51:08 -07:00
Linus Torvalds
2d70de4ee5 Merge tag 'block-5.15-2021-09-25' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
      - keep ctrl->namespaces ordered (Christoph Hellwig)
      - fix incorrect h2cdata pdu offset accounting in nvme-tcp (Sagi
        Grimberg)
      - handled updated hw_queues in nvme-fc more carefully (Daniel
        Wagner, James Smart)

 - md lock order fix (Christoph)

 - fallocate locking fix (Ming)

 - blktrace UAF fix (Zhihao)

 - rq-qos bio tracking fix (Ming)

* tag 'block-5.15-2021-09-25' of git://git.kernel.dk/linux-block:
  block: hold ->invalidate_lock in blkdev_fallocate
  blktrace: Fix uaf in blk_trace access after removing by sysfs
  block: don't call rq_qos_ops->done_bio if the bio isn't tracked
  md: fix a lock order reversal in md_alloc
  nvme: keep ctrl->namespaces ordered
  nvme-tcp: fix incorrect h2cdata pdu offset accounting
  nvme-fc: remove freeze/unfreeze around update_nr_hw_queues
  nvme-fc: avoid race between time out and tear down
  nvme-fc: update hardware queues before using them
2021-09-25 15:44:05 -07:00
Linus Torvalds
5739844347 Merge tag 'for-linus-5.15b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
 "Some minor cleanups and fixes of some theoretical bugs, as well as a
  fix of a bug introduced in 5.15-rc1"

* tag 'for-linus-5.15b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/x86: fix PV trap handling on secondary processors
  xen/balloon: fix balloon kthread freezing
  swiotlb-xen: this is PV-only on x86
  xen/pci-swiotlb: reduce visibility of symbols
  PCI: only build xen-pcifront in PV-enabled environments
  swiotlb-xen: ensure to issue well-formed XENMEM_exchange requests
  Xen/gntdev: don't ignore kernel unmapping error
  xen/x86: drop redundant zeroing from cpu_initialize_context()
2021-09-25 15:37:31 -07:00
Linus Torvalds
90316e6ea0 Merge tag 'linux-kselftest-fixes-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:

 - fix to Kselftest common framework header install to run before other
   targets for it work correctly in parallel build case.

 - fixes to kvm test to not ignore fscanf() returns which could result
   in inconsistent test behavior and failures.

* tag 'linux-kselftest-fixes-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: kvm: fix get_run_delay() ignoring fscanf() return warn
  selftests: kvm: move get_run_delay() into lib/test_util
  selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn
  selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn
  selftests: be sure to make khdr before other targets
2021-09-25 15:30:29 -07:00
Linus Torvalds
a5e0aceabe Merge tag 'erofs-for-5.15-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs fixes from Gao Xiang:
 "Two bugfixes to fix the 4KiB blockmap chunk format availability and a
  dangling pointer usage. There is also a trivial cleanup to clarify
  compacted_2b if compacted_4b_initial > totalidx.

  Summary:

   - fix the dangling pointer use in erofs_lookup tracepoint

   - fix unsupported chunk format check

   - zero out compacted_2b if compacted_4b_initial > totalidx"

* tag 'erofs-for-5.15-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: clear compacted_2b if compacted_4b_initial > totalidx
  erofs: fix misbehavior of unsupported chunk format check
  erofs: fix up erofs_lookup tracepoint
2021-09-25 11:31:48 -07:00
Linus Torvalds
b8f4296560 Merge tag '5.15-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
 "Six small cifs/smb3 fixes, two for stable:

   - important fix for deferred close (found by a git functional test)
     related to attribute caching on close.

   - four (two cosmetic, two more serious) small fixes for problems
     pointed out by smatch via Dan Carpenter

   - fix for comment formatting problems pointed out by W=1"

* tag '5.15-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix incorrect check for null pointer in header_assemble
  smb3: correct server pointer dereferencing check to be more consistent
  smb3: correct smb3 ACL security descriptor
  cifs: Clear modified attribute bit from inode flags
  cifs: Deal with some warnings from W=1
  cifs: fix a sign extension bug
2021-09-25 11:08:12 -07:00
Linus Torvalds
8573616846 Merge tag 'char-misc-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
 "Here are some small char and misc driver fixes for 5.15-rc3.

  Nothing huge in here, just fixes for a number of small issues that
  have been reported. These include:

   - habanalabs race conditions and other bugs fixed

   - binder driver fixes

   - fpga driver fixes

   - coresight build warning fix

   - nvmem driver fix

   - comedi memory leak fix

   - bcm-vk tty race fix

   - other tiny driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (21 commits)
  comedi: Fix memory leak in compat_insnlist()
  nvmem: NVMEM_NINTENDO_OTP should depend on WII
  misc: bcm-vk: fix tty registration race
  fpga: dfl: Avoid reads to AFU CSRs during enumeration
  fpga: machxo2-spi: Fix missing error code in machxo2_write_complete()
  fpga: machxo2-spi: Return an error on failure
  habanalabs: expose a single cs seq in staged submissions
  habanalabs: fix wait offset handling
  habanalabs: rate limit multi CS completion errors
  habanalabs/gaudi: fix LBW RR configuration
  habanalabs: Fix spelling mistake "FEADBACK" -> "FEEDBACK"
  habanalabs: fail collective wait when not supported
  habanalabs/gaudi: use direct MSI in single mode
  habanalabs: fix kernel OOPs related to staged cs
  habanalabs: fix potential race in interrupt wait ioctl
  mcb: fix error handling in mcb_alloc_bus()
  misc: genwqe: Fixes DMA mask setting
  coresight: syscfg: Fix compiler warning
  nvmem: core: Add stubs for nvmem_cell_read_variable_le_u32/64 if !CONFIG_NVMEM
  binder: make sure fd closes complete
  ...
2021-09-25 10:29:14 -07:00
Linus Torvalds
9cbef30886 Merge tag 'staging-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
 "Here are two small staging driver fixes for 5.15-rc3:

   - greybus tty use-after-free bugfix

   - r8188eu ioctl overlap build warning fix

  Note, the r8188eu ioctl has been entirely removed for 5.16-rc1, but
  it's good to get this fixed now for people using this in 5.15.

  Both of these have been in linux-next for a while with no reported
  issues"

* tag 'staging-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8188eu: fix -Wrestrict warnings
  staging: greybus: uart: fix tty use after free
2021-09-25 10:19:49 -07:00
Linus Torvalds
f9d4be2507 Merge tag 'tty-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
 "Here are four small tty/serial driver fixes for 5.15-rc3. They
  include:

   - remove an export now that no one is using it anymore

   - mvebu-uart tx_empty callback fix

   - 8250_omap bugfix

   - synclink_gt build fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: unexport tty_ldisc_release
  tty: synclink_gt: rename a conflicting function name
  serial: mvebu-uart: fix driver's tx_empty callback
  serial: 8250: 8250_omap: Fix RX_LVL register offset
2021-09-25 10:15:55 -07:00
Linus Torvalds
2c4e969c38 Merge tag 'usb-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
 "Here are some USB driver fixes and new device ids for 5.15-rc3.

  They include:

   - usb-storage quirk additions

   - usb-serial new device ids

   - usb-serial driver fixes

   - USB roothub registration bugfix to resolve a long-reported issue

   - usb gadget driver fixes for a large number of small things

   - dwc2 driver fixes

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (28 commits)
  USB: serial: option: add device id for Foxconn T99W265
  USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
  USB: serial: cp210x: add part-number debug printk
  USB: serial: cp210x: fix dropped characters with CP2102
  MAINTAINERS: usb, update Peter Korsgaard's entries
  usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
  usb-storage: Add quirk for ScanLogic SL11R-IDE older than 2.6c
  Re-enable UAS for LaCie Rugged USB3-FW with fk quirk
  USB: serial: option: remove duplicate USB device ID
  USB: serial: mos7840: remove duplicated 0xac24 device ID
  arm64: dts: qcom: ipq8074: remove USB tx-fifo-resize property
  usb: gadget: f_uac2: Populate SS descriptors' wBytesPerInterval
  usb: gadget: f_uac2: Add missing companion descriptor for feedback EP
  usb: dwc2: gadget: Fix ISOC transfer complete handling for DDMA
  usb: core: hcd: Modularize HCD stop configuration in usb_stop_hcd()
  xhci: Set HCD flag to defer primary roothub registration
  usb: core: hcd: Add support for deferring roothub registration
  usb: dwc2: gadget: Fix ISOC flow for BDMA and Slave
  usb: dwc3: core: balance phy init and exit
  Revert "USB: bcma: Add a check for devm_gpiod_get"
  ...
2021-09-25 10:10:38 -07:00
Pavel Begunkov
7df778be2f io_uring: make OP_CLOSE consistent with direct open
From recently open/accept are now able to manipulate fixed file table,
but it's inconsistent that close can't. Close the gap, keep API same as
with open/accept, i.e. via sqe->file_slot.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 14:07:54 -06:00
Linus Torvalds
7d42e98182 Merge tag 'gpio-fixes-for-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:

 - fix a regression in GPIO ACPI on HP ElitePad 1000 G2 where the
   gpio_set_debounce_timeout() now returns a fatal error if the specific
   debounce period is not supported by the driver instead of just
   emitting a warning

 - fix return values of irq_mask/unmask() callbacks in gpio-uniphier

 - fix hwirq calculation in gpio-aspeed-sgpio

 - fix two issues in gpio-rockchip: only make the extended debounce
   support available for v2 and remove a redundant BIT() usage

* tag 'gpio-fixes-for-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio/rockchip: fix get_direction value handling
  gpio/rockchip: extended debounce support is only available on v2
  gpio: gpio-aspeed-sgpio: Fix wrong hwirq in irq handler.
  gpio: uniphier: Fix void functions to remove return value
  gpiolib: acpi: Make set-debounce-timeout failures non fatal
2021-09-24 11:22:55 -07:00
Linus Torvalds
47d7e65d64 Merge tag 'devprop-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull device properties framework fix from Rafael Wysocki:
 "Fix software node refcount imbalance on device removal (Laurentiu
  Tudor)"

* tag 'devprop-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  software node: balance refcount for managed software nodes
2021-09-24 11:20:29 -07:00
Linus Torvalds
ea1f9163ac Merge tag 'acpi-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
 "Revert a recent commit related to memory management that turned out to
  be problematic (Jia He)"

* tag 'acpi-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPI: Add memory semantics to acpi_os_map_memory()"
2021-09-24 11:17:32 -07:00
Linus Torvalds
1b7eaf5701 Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:

 - It turns out that the optimised string routines merged in 5.14 are
   not safe with in-kernel MTE (KASAN_HW_TAGS) because of reading beyond
   the end of a string (strcmp, strncmp). Such reading may go across a
   16 byte tag granule and cause a tag check fault. When KASAN_HW_TAGS
   is enabled, use the generic strcmp/strncmp C implementation.

 - An errata workaround for ThunderX relied on the CPU capabilities
   being enabled in a specific order. This disappeared with the
   automatic generation of the cpucaps.h file (sorted alphabetically).
   Fix it by checking the current CPU only rather than the system-wide
   capability.

 - Add system_supports_mte() checks on the kernel entry/exit path and
   thread switching to avoid unnecessary barriers and function calls on
   systems where MTE is not supported.

 - kselftests: skip arm64 tests if the required features are missing.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Restore forced disabling of KPTI on ThunderX
  kselftest/arm64: signal: Skip tests if required features are missing
  arm64: Mitigate MTE issues with str{n}cmp()
  arm64: add MTE supported check to thread switching and syscall entry/exit
2021-09-24 11:12:17 -07:00
Linus Torvalds
4c4f0c2bf3 Merge tag 'ceph-for-5.15-rc3' of git://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
 "A fix for a potential array out of bounds access from Dan"

* tag 'ceph-for-5.15-rc3' of git://github.com/ceph/ceph-client:
  ceph: fix off by one bugs in unsafe_request_wait()
2021-09-24 10:28:18 -07:00
Linus Torvalds
e655c81ade Merge tag 'fixes_for_v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull misc filesystem fixes from Jan Kara:
 "A for ext2 sleep in atomic context in case of some fs problems and a
  cleanup of an invalidate_lock initialization"

* tag 'fixes_for_v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  ext2: fix sleeping in atomic bugs on error
  mm: Fully initialize invalidate_lock, amend lock class later
2021-09-24 10:22:35 -07:00
Linus Torvalds
a801695f68 Merge branch 'work.init' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
 "Followups to nodev root stuff from this merge window"

* 'work.init' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  init: don't panic if mount_nodev_root failed
  init/do_mounts.c: Harden split_fs_names() against buffer overflow
2021-09-24 10:18:07 -07:00
Linus Torvalds
e61b2ad3e1 Merge tag 'drm-fixes-2021-09-24' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Quiet week this week, just some i915 and amd fixes, just getting ready
  for my all nighter maintainer summit!

  Summary:

  i915:
   - Fix ADL-P memory bandwidth parameters
   - Fix memory corruption due to a double free
   - Fix memory leak in DMC firmware handling

  amdgpu:
   - Update MAINTAINERS entry for powerplay
   - Fix empty macros
   - SI DPM fix

  amdkfd:
   - SVM fixes
   - DMA mapping fix"

* tag 'drm-fixes-2021-09-24' of git://anongit.freedesktop.org/drm/drm:
  drm/amdkfd: fix svm_migrate_fini warning
  drm/amdkfd: handle svm migrate init error
  drm/amd/pm: Update intermediate power state for SI
  drm/amdkfd: fix dma mapping leaking warning
  drm/amdkfd: SVM map to gpus check vma boundary
  MAINTAINERS: fix up entry for AMD Powerplay
  drm/amd/display: fix empty debug macros
  drm/i915: Free all DMC payloads
  drm/i915: Move __i915_gem_free_object to ttm_bo_destroy
  drm/i915: Update memory bandwidth parameters
2021-09-24 10:14:19 -07:00
Ming Lei
f278eb3d81 block: hold ->invalidate_lock in blkdev_fallocate
When running ->fallocate(), blkdev_fallocate() should hold
mapping->invalidate_lock to prevent page cache from being accessed,
otherwise stale data may be read in page cache.

Without this patch, blktests block/009 fails sometimes. With this patch,
block/009 can pass always.

Also as Jan pointed out, no pages can be created in the discarded area
while you are holding the invalidate_lock, so remove the 2nd
truncate_bdev_range().

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210923023751.1441091-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 11:06:58 -06:00
Zhihao Cheng
5afedf670c blktrace: Fix uaf in blk_trace access after removing by sysfs
There is an use-after-free problem triggered by following process:

      P1(sda)				P2(sdb)
			echo 0 > /sys/block/sdb/trace/enable
			  blk_trace_remove_queue
			    synchronize_rcu
			    blk_trace_free
			      relay_close
rcu_read_lock
__blk_add_trace
  trace_note_tsk
  (Iterate running_trace_list)
			        relay_close_buf
				  relay_destroy_buf
				    kfree(buf)
    trace_note(sdb's bt)
      relay_reserve
        buf->offset <- nullptr deference (use-after-free) !!!
rcu_read_unlock

[  502.714379] BUG: kernel NULL pointer dereference, address:
0000000000000010
[  502.715260] #PF: supervisor read access in kernel mode
[  502.715903] #PF: error_code(0x0000) - not-present page
[  502.716546] PGD 103984067 P4D 103984067 PUD 17592b067 PMD 0
[  502.717252] Oops: 0000 [#1] SMP
[  502.720308] RIP: 0010:trace_note.isra.0+0x86/0x360
[  502.732872] Call Trace:
[  502.733193]  __blk_add_trace.cold+0x137/0x1a3
[  502.733734]  blk_add_trace_rq+0x7b/0xd0
[  502.734207]  blk_add_trace_rq_issue+0x54/0xa0
[  502.734755]  blk_mq_start_request+0xde/0x1b0
[  502.735287]  scsi_queue_rq+0x528/0x1140
...
[  502.742704]  sg_new_write.isra.0+0x16e/0x3e0
[  502.747501]  sg_ioctl+0x466/0x1100

Reproduce method:
  ioctl(/dev/sda, BLKTRACESETUP, blk_user_trace_setup[buf_size=127])
  ioctl(/dev/sda, BLKTRACESTART)
  ioctl(/dev/sdb, BLKTRACESETUP, blk_user_trace_setup[buf_size=127])
  ioctl(/dev/sdb, BLKTRACESTART)

  echo 0 > /sys/block/sdb/trace/enable &
  // Add delay(mdelay/msleep) before kernel enters blk_trace_free()

  ioctl$SG_IO(/dev/sda, SG_IO, ...)
  // Enters trace_note_tsk() after blk_trace_free() returned
  // Use mdelay in rcu region rather than msleep(which may schedule out)

Remove blk_trace from running_list before calling blk_trace_free() by
sysfs if blk_trace is at Blktrace_running state.

Fixes: c71a896154 ("blktrace: add ftrace plugin")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Link: https://lore.kernel.org/r/20210923134921.109194-1-chengzhihao1@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 11:06:15 -06:00
Ming Lei
a647a524a4 block: don't call rq_qos_ops->done_bio if the bio isn't tracked
rq_qos framework is only applied on request based driver, so:

1) rq_qos_done_bio() needn't to be called for bio based driver

2) rq_qos_done_bio() needn't to be called for bio which isn't tracked,
such as bios ended from error handling code.

Especially in bio_endio():

1) request queue is referred via bio->bi_bdev->bd_disk->queue, which
may be gone since request queue refcount may not be held in above two
cases

2) q->rq_qos may be freed in blk_cleanup_queue() when calling into
__rq_qos_done_bio()

Fix the potential kernel panic by not calling rq_qos_ops->done_bio if
the bio isn't tracked. This way is safe because both ioc_rqos_done_bio()
and blkcg_iolatency_done_bio() are nop if the bio isn't tracked.

Reported-by: Yu Kuai <yukuai3@huawei.com>
Cc: tj@kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20210924110704.1541818-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 11:04:39 -06:00
Pavel Begunkov
9f3a2cb228 io_uring: kill extra checks in io_write()
We don't retry short writes and so we would never get to async setup in
io_write() in that case. Thus ret2 > 0 is always false and
iov_iter_advance() is never used. Apparently, the same is found by
Coverity, which complains on the code.

Fixes: cd65869512 ("io_uring: use iov_iter state save/restore helpers")
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/5b33e61034748ef1022766efc0fb8854cfcf749c.1632500058.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:26:11 -06:00
Jens Axboe
cdb31c29d3 io_uring: don't punt files update to io-wq unconditionally
There's no reason to punt it unconditionally, we just need to ensure that
the submit lock grabbing is conditional.

Fixes: 05f3fb3c53 ("io_uring: avoid ring quiesce for fixed file set unregister and update")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Jens Axboe
9990da93d2 io_uring: put provided buffer meta data under memcg accounting
For each provided buffer, we allocate a struct io_buffer to hold the
data associated with it. As a large number of buffers can be provided,
account that data with memcg.

Fixes: ddf0322db7 ("io_uring: add IORING_OP_PROVIDE_BUFFERS")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Jens Axboe
8bab4c09f2 io_uring: allow conditional reschedule for intensive iterators
If we have a lot of threads and rings, the tctx list can get quite big.
This is especially true if we keep creating new threads and rings.
Likewise for the provided buffers list. Be nice and insert a conditional
reschedule point while iterating the nodes for deletion.

Link: https://lore.kernel.org/io-uring/00000000000064b6b405ccb41113@google.com/
Reported-by: syzbot+111d2a03f51f5ae73775@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Hao Xu
5b7aa38d86 io_uring: fix potential req refcount underflow
For multishot mode, there may be cases like:

iowq                                 original context
io_poll_add
  _arm_poll()
  mask = vfs_poll() is not 0
  if mask
(2)  io_poll_complete()
  compl_unlock
   (interruption happens
    tw queued to original
    context)
                                     io_poll_task_func()
                                     compl_lock
                                 (3) done = io_poll_complete() is true
                                     compl_unlock
                                     put req ref
(1) if (poll->flags & EPOLLONESHOT)
      put req ref

EPOLLONESHOT flag in (1) may be from (2) or (3), so there are multiple
combinations that can cause ref underfow.
Let's address it by:
- check the return value in (2) as done
- change (1) to if (done)
    in this way, we only do ref put in (1) if 'oneshot flag' is from
    (2)
- do poll.done check in io_poll_task_func(), so that we won't put ref
  for the second time.

Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210922101238.7177-4-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Hao Xu
a62682f92e io_uring: fix missing set of EPOLLONESHOT for CQ ring overflow
We should set EPOLLONESHOT if cqring_fill_event() returns false since
io_poll_add() decides to put req or not by it.

Fixes: 5082620fb2 ("io_uring: terminate multishot poll for CQ ring overflow")
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210922101238.7177-3-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Hao Xu
bd99c71bd1 io_uring: fix race between poll completion and cancel_hash insertion
If poll arming and poll completion runs in parallel, there maybe races.
For instance, run io_poll_add in iowq and io_poll_task_func in original
context, then:

  iowq                                      original context
  io_poll_add
    vfs_poll
     (interruption happens
      tw queued to original
      context)                              io_poll_task_func
                                              generate cqe
                                              del from cancel_hash[]
    if !poll.done
      insert to cancel_hash[]

The entry left in cancel_hash[], similar case for fast poll.
Fix it by set poll.done = true when del from cancel_hash[].

Fixes: 5082620fb2 ("io_uring: terminate multishot poll for CQ ring overflow")
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210922101238.7177-2-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Jens Axboe
87c1696655 io-wq: ensure we exit if thread group is exiting
Dave reports that a coredumping workload gets stuck in 5.15-rc2, and
identified the culprit in the Fixes line below. The problem is that
relying solely on fatal_signal_pending() to gate whether to exit or not
fails miserably if a process gets eg SIGILL sent. Don't exclusively
rely on fatal signals, also check if the thread group is exiting.

Fixes: 15e20db2e0 ("io-wq: only exit on fatal signals")
Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-24 10:24:34 -06:00
Jens Axboe
5cad875691 Merge tag 'nvme-5.15-2021-09-24' of git://git.infradead.org/nvme into block-5.15
Pull NVMe fixes from Christoph:

"nvme fixes for Linux 5.15:

 - keep ctrl->namespaces ordered (me)
 - fix incorrect h2cdata pdu offset accounting in nvme-tcp
   (Sagi Grimberg)
 - handled updated hw_queues in nvme-fc more carefully (Daniel Wagner,
   James Smart)"

* tag 'nvme-5.15-2021-09-24' of git://git.infradead.org/nvme:
  nvme: keep ctrl->namespaces ordered
  nvme-tcp: fix incorrect h2cdata pdu offset accounting
  nvme-fc: remove freeze/unfreeze around update_nr_hw_queues
  nvme-fc: avoid race between time out and tear down
  nvme-fc: update hardware queues before using them
2021-09-24 07:15:21 -06:00
Greg Kroah-Hartman
0292dbd7bd Merge tag 'usb-serial-5.15-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:

USB-serial fixes for 5.15-rc3

Here's a fix for a regression affecting some CP2102 devices and a host
of new device ids.

Included are also a couple of cleanups of duplicate device ids, which
are also tagged for stable to keep the tables in sync, and a trivial
patch to help debugging cp210x issues.

All have been in linux-next with no reported issues. Note however that
the last last two device-id commits were rebased to fix up a lore link
in a commit message (as the patch itself never made it to the list).

* tag 'usb-serial-5.15-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: option: add device id for Foxconn T99W265
  USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
  USB: serial: cp210x: add part-number debug printk
  USB: serial: cp210x: fix dropped characters with CP2102
  USB: serial: option: remove duplicate USB device ID
  USB: serial: mos7840: remove duplicated 0xac24 device ID
  USB: serial: option: add Telit LN920 compositions
2021-09-24 10:22:53 +02:00
Slark Xiao
9e3eed534f USB: serial: option: add device id for Foxconn T99W265
Adding support for Foxconn device T99W265 for enumeration with
PID 0xe0db.

usb-devices output for 0xe0db
T:  Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 19 Spd=5000 MxCh= 0
D:  Ver= 3.20 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs=  1
P:  Vendor=0489 ProdID=e0db Rev=05.04
S:  Manufacturer=Microsoft
S:  Product=Generic Mobile Broadband Adapter
S:  SerialNumber=6c50f452
C:  #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=896mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
I:  If#=0x3 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option

if0/1: MBIM, if2:Diag, if3:GNSS, if4: Modem

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://lore.kernel.org/r/20210917110106.9852-1-slark_xiao@163.com
[ johan: use USB_DEVICE_INTERFACE_CLASS(), amend comment ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
2021-09-24 09:32:11 +02:00
Uwe Brandt
3bd18ba7d8 USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
Add the USB serial device ID for the GW Instek GDM-834x Digital Multimeter.

Signed-off-by: Uwe Brandt <uwe.brandt@gmail.com>
Link: https://lore.kernel.org/r/YUxFl3YUCPGJZd8Y@hovoldconsulting.com
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
2021-09-24 09:31:10 +02:00
Steve French
9ed38fd4a1 cifs: fix incorrect check for null pointer in header_assemble
Although very unlikely that the tlink pointer would be null in this case,
get_next_mid function can in theory return null (but not an error)
so need to check for null (not for IS_ERR, which can not be returned
here).

Address warning:

        fs/smbfs_client/connect.c:2392 cifs_match_super()
        warn: 'tlink' isn't an ERR_PTR

Pointed out by Dan Carpenter via smatch code analysis tool

CC: stable@vger.kernel.org
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-23 21:12:53 -05:00
Steve French
1db1aa9887 smb3: correct server pointer dereferencing check to be more consistent
Address warning:

    fs/smbfs_client/misc.c:273 header_assemble()
    warn: variable dereferenced before check 'treeCon->ses->server'

Pointed out by Dan Carpenter via smatch code analysis tool

Although the check is likely unneeded, adding it makes the code
more consistent and easier to read, as the same check is
done elsewhere in the function.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-23 21:12:23 -05:00
Dave Airlie
ef88d7a8a5 Merge tag 'drm-intel-fixes-2021-09-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.15-rc3:
- Fix ADL-P memory bandwidth parameters
- Fix memory corruption due to a double free
- Fix memory leak in DMC firmware handling

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87o88jbk3o.fsf@intel.com
2021-09-24 09:39:17 +10:00
Dave Airlie
22a94600e2 Merge tag 'amd-drm-fixes-5.15-2021-09-23' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.15-2021-09-23:

amdgpu:
- Update MAINTAINERS entry for powerplay
- Fix empty macros
- SI DPM fix

amdkfd:
- SVM fixes
- DMA mapping fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210923211330.20725-1-alexander.deucher@amd.com
2021-09-24 08:39:02 +10:00
Linus Torvalds
f9e36107ec Merge tag 'for-5.15-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:

 - regression fix for leak of transaction handle after verity rollback
   failure

 - properly reset device last error between mounts

 - improve one error handling case when checksumming bios

 - fixup confusing displayed size of space info free space

* tag 'for-5.15-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: prevent __btrfs_dump_space_info() to underflow its free space
  btrfs: fix mount failure due to past and transient device flush error
  btrfs: fix transaction handle leak after verity rollback failure
  btrfs: replace BUG_ON() in btrfs_csum_one_bio() with proper error handling
2021-09-23 14:39:41 -07:00
Steve French
b06d893ef2 smb3: correct smb3 ACL security descriptor
Address warning:

        fs/smbfs_client/smb2pdu.c:2425 create_sd_buf()
        warn: struct type mismatch 'smb3_acl vs cifs_acl'

Pointed out by Dan Carpenter via smatch code analysis tool

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-23 16:17:07 -05:00
Linus Torvalds
831c9bd3da Merge tag 'selinux-pr-20210923' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux/Smack fixes from Paul Moore:
 "Another single-patch pull request for SELinux, as well as Smack.

  This fixes some credential misuse and is explained reasonably well in
  the patch description"

* tag 'selinux-pr-20210923' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux,smack: fix subjective/objective credential use mixups
2021-09-23 14:17:06 -07:00
Steve French
4f22262280 cifs: Clear modified attribute bit from inode flags
Clear CIFS_INO_MODIFIED_ATTR bit from inode flags after
updating mtime and ctime

Signed-off-by: Rohith Surabattula <rohiths@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-23 16:16:19 -05:00
Philip Yang
197ae17722 drm/amdkfd: fix svm_migrate_fini warning
Device manager releases device-specific resources when a driver
disconnects from a device, devm_memunmap_pages and
devm_release_mem_region calls in svm_migrate_fini are redundant.

It causes below warning trace after patch "drm/amdgpu: Split
amdgpu_device_fini into early and late", so remove function
svm_migrate_fini.

BUG: https://gitlab.freedesktop.org/drm/amd/-/issues/1718

WARNING: CPU: 1 PID: 3646 at drivers/base/devres.c:795
devm_release_action+0x51/0x60
Call Trace:
    ? memunmap_pages+0x360/0x360
    svm_migrate_fini+0x2d/0x60 [amdgpu]
    kgd2kfd_device_exit+0x23/0xa0 [amdgpu]
    amdgpu_amdkfd_device_fini_sw+0x1d/0x30 [amdgpu]
    amdgpu_device_fini_sw+0x45/0x290 [amdgpu]
    amdgpu_driver_release_kms+0x12/0x30 [amdgpu]
    drm_dev_release+0x20/0x40 [drm]
    release_nodes+0x196/0x1e0
    device_release_driver_internal+0x104/0x1d0
    driver_detach+0x47/0x90
    bus_remove_driver+0x7a/0xd0
    pci_unregister_driver+0x3d/0x90
    amdgpu_exit+0x11/0x20 [amdgpu]

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 17:06:11 -04:00
Philip Yang
7d6687200a drm/amdkfd: handle svm migrate init error
If svm migration init failed to create pgmap for device memory, set
pgmap type to 0 to disable device SVM support capability.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 17:06:11 -04:00
Lijo Lazar
ab39d3cef5 drm/amd/pm: Update intermediate power state for SI
Update the current state as boot state during dpm initialization.
During the subsequent initialization, set_power_state gets called to
transition to the final power state. set_power_state refers to values
from the current state and without current state populated, it could
result in NULL pointer dereference.

For ex: on platforms where PCI speed change is supported through ACPI
ATCS method, the link speed of current state needs to be queried before
deciding on changing to final power state's link speed. The logic to query
ATCS-support was broken on certain platforms. The issue became visible
when broken ATCS-support logic got fixed with commit
f9b7f3703f ("drm/amdgpu/acpi: make ATPX/ATCS structures global (v2)").

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1698

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2021-09-23 17:06:11 -04:00
Philip Yang
f63251184a drm/amdkfd: fix dma mapping leaking warning
For xnack off, restore work dma unmap previous system memory page, and
dma map the updated system memory page to update GPU mapping, this is
not dma mapping leaking, remove the WARN_ONCE for dma mapping leaking.

prange->dma_addr store the VRAM page pfn after the range migrated to
VRAM, should not dma unmap VRAM page when updating GPU mapping or
remove prange. Add helper svm_is_valid_dma_mapping_addr to check VRAM
page and error cases.

Mask out SVM_RANGE_VRAM_DOMAIN flag in dma_addr before calling amdgpu vm
update to avoid BUG_ON(*addr & 0xFFFF00000000003FULL), and set it again
immediately after. This flag is used to know the type of page later to
dma unmapping system memory page.

Fixes: 1d5dbfe6c0 ("drm/amdkfd: classify and map mixed svm range pages in GPU")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 16:00:16 -04:00
Philip Yang
7beb26dced drm/amdkfd: SVM map to gpus check vma boundary
SVM range may includes multiple VMAs with different vm_flags, if prange
page index is the last page of the VMA offset + npages, update GPU
mapping to create GPU page table with same VMA access permission.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 16:00:09 -04:00
Alex Deucher
6de0653f77 MAINTAINERS: fix up entry for AMD Powerplay
Fix the path to cover both the older powerplay infrastructure
and the newer SwSMU infrastructure.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 15:58:38 -04:00
Arnd Bergmann
c48977f020 drm/amd/display: fix empty debug macros
Using an empty macro expansion as a conditional expression
produces a W=1 warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c: In function 'dce_aux_transfer_with_retries':
drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:775:156: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
  775 |                                                                 "dce_aux_transfer_with_retries: AUX_RET_SUCCESS: AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER");
      |                                                                                                                                                            ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:783:155: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
  783 |                                                                 "dce_aux_transfer_with_retries: AUX_RET_SUCCESS: AUX_TRANSACTION_REPLY_I2C_OVER_AUX_NACK");
      |                                                                                                                                                           ^

Expand it to "do { } while (0)" instead to make the expression
more robust and avoid the warning.

Fixes: 56aca23093 ("drm/amd/display: Add AUX I2C tracing.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-09-23 15:58:21 -04:00