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The VMM may not wish to have it's own mapping of guest memory mapped
with PROT_MTE because this causes problems if the VMM has tag checking
enabled (the guest controls the tags in physical RAM and it's unlikely
the tags are correct for the VMM).
Instead add a new ioctl which allows the VMM to easily read/write the
tags from guest memory, allowing the VMM's mapping to be non-PROT_MTE
while the VMM can still read/write the tags for the purpose of
migration.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210621111716.37157-6-steven.price@arm.com
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It's now safe for the VMM to enable MTE in a guest, so expose the
capability to user space.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210621111716.37157-5-steven.price@arm.com
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Define the new system registers that MTE introduces and context switch
them. The MTE feature is still hidden from the ID register as it isn't
supported in a VM yet.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210621111716.37157-4-steven.price@arm.com
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Add a new VM feature 'KVM_ARM_CAP_MTE' which enables memory tagging
for a VM. This will expose the feature to the guest and automatically
tag memory pages touched by the VM as PG_mte_tagged (and clear the tag
storage) to ensure that the guest cannot see stale tags, and so that
the tags are correctly saved/restored across swap.
Actually exposing the new capability to user space happens in a later
patch.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
[maz: move VM_SHARED sampling into the critical section]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210621111716.37157-3-steven.price@arm.com
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A KVM guest could store tags in a page even if the VMM hasn't mapped
the page with PROT_MTE. So when restoring pages from swap we will
need to check to see if there are any saved tags even if !pte_tagged().
However don't check pages for which pte_access_permitted() returns false
as these will not have been swapped out.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210621111716.37157-2-steven.price@arm.com
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"This is a bit larger than usual at rc4 time. The reason is due to
Lee's work of fixing newly reported build warnings.
The rest is fixes as usual"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (22 commits)
MAINTAINERS: adjust to removing i2c designware platform data
i2c: s3c2410: fix possible NULL pointer deref on read message after write
i2c: mediatek: Disable i2c start_en and clear intr_stat brfore reset
i2c: i801: Don't generate an interrupt on bus reset
i2c: mpc: implement erratum A-004447 workaround
powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers
powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers
dt-bindings: i2c: mpc: Add fsl,i2c-erratum-a004447 flag
i2c: busses: i2c-stm32f4: Remove incorrectly placed ' ' from function name
i2c: busses: i2c-st: Fix copy/paste function misnaming issues
i2c: busses: i2c-pnx: Provide descriptions for 'alg_data' data structure
i2c: busses: i2c-ocores: Place the expected function names into the documentation headers
i2c: busses: i2c-eg20t: Fix 'bad line' issue and provide description for 'msgs' param
i2c: busses: i2c-designware-master: Fix misnaming of 'i2c_dw_init_master()'
i2c: busses: i2c-cadence: Fix incorrectly documented 'enum cdns_i2c_slave_mode'
i2c: busses: i2c-ali1563: File headers are not good candidates for kernel-doc
i2c: muxes: i2c-arb-gpio-challenge: Demote non-conformant kernel-doc headers
i2c: busses: i2c-nomadik: Fix formatting issue pertaining to 'timeout'
i2c: sh_mobile: Use new clock calculation formulas for RZ/G2E
i2c: I2C_HISI should depend on ACPI
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"This fixes a hard-to-hit race condition in the addfd user_notif
feature of seccomp, visible since v5.9.
And a small documentation fix"
* tag 'seccomp-fixes-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
seccomp: Refactor notification handler to prepare for new semantics
Documentation: seccomp: Fix user notification documentation
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"A handful of RISC-V related fixes:
- avoid errors when the stack tracing code is tracing itself.
- resurrect the memtest= kernel command line argument on RISC-V,
which was briefly enabled during the merge window before a
refactoring disabled it.
- build fix and some warning cleanups"
* tag 'riscv-for-linus-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: kexec: Fix W=1 build warnings
riscv: kprobes: Fix build error when MMU=n
riscv: Select ARCH_USE_MEMTEST
riscv: stacktrace: fix the riscv stacktrace when CONFIG_FRAME_POINTER enabled
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Pull xfs fixes from Darrick Wong:
"This week's pile mitigates some decades-old problems in how extent
size hints interact with realtime volumes, fixes some failures in
online shrink, and fixes a problem where directory and symlink
shrinking on extremely fragmented filesystems could fail.
The most user-notable change here is to point users at our (new) IRC
channel on OFTC. Freedom isn't free, it costs folks like you and me;
and if you don't kowtow, they'll expel everyone and take over your
channel. (Ok, ok, that didn't fit the song lyrics...)
Summary:
- Fix a bug where unmapping operations end earlier than expected,
which can cause chaos on multi-block directory and symlink shrink
operations.
- Fix an erroneous assert that can trigger if we try to transition a
bmap structure from btree format to extents format with zero
extents. This was exposed by xfs/538"
* tag 'xfs-5.13-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: bunmapi has unnecessary AG lock ordering issues
xfs: btree format inode forks can have zero extents
xfs: add new IRC channel to MAINTAINERS
xfs: validate extsz hints against rt extent size when rtinherit is set
xfs: standardize extent size hint validation
xfs: check free AG space when making per-AG reservations
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This refactors the user notification code to have a do / while loop around
the completion condition. This has a small change in semantic, in that
previously we ignored addfd calls upon wakeup if the notification had been
responded to, but instead with the new change we check for an outstanding
addfd calls prior to returning to userspace.
Rodrigo Campos also identified a bug that can result in addfd causing
an early return, when the supervisor didn't actually handle the
syscall [1].
[1]: https://lore.kernel.org/lkml/20210413160151.3301-1-rodrigo@kinvolk.io/
Fixes: 7cf97b125455 ("seccomp: Introduce addfd ioctl to seccomp user notifier")
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Acked-by: Tycho Andersen <tycho@tycho.pizza>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Tested-by: Rodrigo Campos <rodrigo@kinvolk.io>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210517193908.3113-3-sargun@sargun.me
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git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal fixes from Daniel Lezcano:
- Fix uninitialized error code value for the SPMI adc driver (Yang
Yingliang)
- Fix kernel doc warning (Yang Li)
- Fix wrong read-write thermal trip point initialization (Srinivas
Pandruvada)
* tag 'thermal-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal/drivers/qcom: Fix error code in adc_tm5_get_dt_channel_data()
thermal/ti-soc-thermal: Fix kernel-doc
thermal/drivers/intel: Initialize RW trip to THERMAL_TEMP_INVALID
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some tiny char/misc driver fixes for 5.13-rc4.
Nothing huge here, just some tiny fixes for reported issues:
- two interconnect driver fixes
- kgdb build warning fix for gcc-11
- hgafb regression fix
- soundwire driver fix
- mei driver fix
All have been in linux-next with no reported issues"
* tag 'char-misc-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: request autosuspend after sending rx flow control
kgdb: fix gcc-11 warnings harder
video: hgafb: correctly handle card detect failure during probe
soundwire: qcom: fix handling of qcom,ports-block-pack-mode
interconnect: qcom: Add missing MODULE_DEVICE_TABLE
interconnect: qcom: bcm-voter: add a missing of_node_put()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three small driver core / debugfs fixes for 5.13-rc4:
- debugfs fix for incorrect "lockdown" mode for selinux accesses
- two device link changes, one bugfix and one cleanup
All of these have been in linux-next for over a week with no reported
problems"
* tag 'driver-core-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
drivers: base: Reduce device link removal code duplication
drivers: base: Fix device link removal
debugfs: fix security_locked_down() call for SELinux
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here are some small IIO and staging driver fixes for reported issues
for 5.13-rc4.
Nothing major here, tiny changes for reported problems, full details
are in the shortlog if people are curious.
All have been in linux-next for a while with no reported problems"
* tag 'staging-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: adc: ad7793: Add missing error code in ad7793_setup()
iio: adc: ad7923: Fix undersized rx buffer.
iio: adc: ad7768-1: Fix too small buffer passed to iio_push_to_buffers_with_timestamp()
iio: dac: ad5770r: Put fwnode in error case during ->probe()
iio: gyro: fxas21002c: balance runtime power in error path
staging: emxx_udc: fix loop in _nbu2ss_nuke()
staging: iio: cdc: ad7746: avoid overwrite of num_channels
iio: adc: ad7192: handle regulator voltage error first
iio: adc: ad7192: Avoid disabling a clock that was never enabled.
iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers
iio: adc: ad7124: Fix missbalanced regulator enable / disable on error.
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver fixes from Greg KH:
"Here are some small fixes for reported problems for tty and serial
drivers for 5.13-rc4.
They consist of:
- 8250 bugfixes and new device support
- lockdown security mode fixup
- syzbot found problems fixed
- 8250_omap fix for interrupt storm
- revert of 8250_omap driver fix as it caused worse problem than the
original issue
All but the last patch have been in linux-next for a while, the last
one is a revert of a problem found in linux-next with the 8250_omap
driver change"
* tag 'tty-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "serial: 8250: 8250_omap: Fix possible interrupt storm"
serial: 8250_pci: handle FL_NOIRQ board flag
serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
serial: 8250_pci: Add support for new HPE serial device
serial: 8250: 8250_omap: Fix possible interrupt storm
serial: 8250: Use BIT(x) for UART_{CAP,BUG}_*
serial: 8250: Add UART_BUG_TXRACE workaround for Aspeed VUART
serial: 8250_dw: Add device HID for new AMD UART controller
serial: sh-sci: Fix off-by-one error in FIFO threshold register setting
serial: core: fix suspicious security_locked_down() call
serial: tegra: Fix a mask operation that is always true
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are a number of tiny USB and Thunderbolt driver fixes for
5.13-rc4.
They consist of:
- thunderbolt fixes for some NVM bound issues
- xhci fixes for reported problems
- control-request fixups
- documentation build warning fixes
- new usb-serial driver device ids
- typec bugfixes for reported issues
- usbfs warning fixups (could be triggered from userspace)
- other tiny fixes for reported problems.
All of these have been in linux-next with no reported issues"
* tag 'usb-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
xhci: Fix 5.12 regression of missing xHC cache clearing command after a Stall
xhci: fix giving back URB with incorrect status regression in 5.12
usb: gadget: udc: renesas_usb3: Fix a race in usb3_start_pipen()
usb: typec: tcpm: Respond Not_Supported if no snk_vdo
usb: typec: tcpm: Properly interrupt VDM AMS
USB: trancevibrator: fix control-request direction
usb: Restore the usb_header label
usb: typec: tcpm: Use LE to CPU conversion when accessing msg->header
usb: typec: ucsi: Clear pending after acking connector change
usb: typec: mux: Fix matching with typec_altmode_desc
misc/uss720: fix memory leak in uss720_probe
usb: dwc3: gadget: Properly track pending and queued SG
USB: usbfs: Don't WARN about excessively large memory allocations
thunderbolt: usb4: Fix NVM read buffer bounds and offset issue
thunderbolt: dma_port: Fix NVM read buffer bounds and offset issue
usb: chipidea: udc: assign interrupt number to USB gadget structure
usb: cdnsp: Fix lack of removing request from pending list.
usb: cdns3: Fix runtime PM imbalance on error
USB: serial: pl2303: add device id for ADLINK ND-6530 GC
USB: serial: ti_usb_3410_5052: add startech.com device id
...
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Pull KVM fixes from Paolo Bonzini:
"ARM fixes:
- Another state update on exit to userspace fix
- Prevent the creation of mixed 32/64 VMs
- Fix regression with irqbypass not restarting the guest on failed
connect
- Fix regression with debug register decoding resulting in
overlapping access
- Commit exception state on exit to usrspace
- Fix the MMU notifier return values
- Add missing 'static' qualifiers in the new host stage-2 code
x86 fixes:
- fix guest missed wakeup with assigned devices
- fix WARN reported by syzkaller
- do not use BIT() in UAPI headers
- make the kvm_amd.avic parameter bool
PPC fixes:
- make halt polling heuristics consistent with other architectures
selftests:
- various fixes
- new performance selftest memslot_perf_test
- test UFFD minor faults in demand_paging_test"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits)
selftests: kvm: fix overlapping addresses in memslot_perf_test
KVM: X86: Kill off ctxt->ud
KVM: X86: Fix warning caused by stale emulation context
KVM: X86: Use kvm_get_linear_rip() in single-step and #DB/#BP interception
KVM: x86/mmu: Fix comment mentioning skip_4k
KVM: VMX: update vcpu posted-interrupt descriptor when assigning device
KVM: rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK
KVM: x86: add start_assignment hook to kvm_x86_ops
KVM: LAPIC: Narrow the timer latency between wait_lapic_expire and world switch
selftests: kvm: do only 1 memslot_perf_test run by default
KVM: X86: Use _BITUL() macro in UAPI headers
KVM: selftests: add shared hugetlbfs backing source type
KVM: selftests: allow using UFFD minor faults for demand paging
KVM: selftests: create alias mappings when using shared memory
KVM: selftests: add shmem backing source type
KVM: selftests: refactor vm_mem_backing_src_type flags
KVM: selftests: allow different backing source types
KVM: selftests: compute correct demand paging size
KVM: selftests: simplify setup_demand_paging error handling
KVM: selftests: Print a message if /dev/kvm is missing
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
"Fix races in vfio-ccw request handling"
* tag 's390-5.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
vfio-ccw: Serialize FSM IDLE state with I/O completion
vfio-ccw: Reset FSM state to IDLE inside FSM
vfio-ccw: Check initialized flag in cp_init()
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vm_create allocates memory and maps it close to GPA. This memory
is separate from what is allocated in subsequent calls to
vm_userspace_mem_region_add, so it is incorrect to pass the
test memory size to vm_create_default. Just pass a small
fixed amount of memory which can be used later for page table,
otherwise GPAs are already allocated at MEM_GPA and the
test aborts.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Ten small fixes, all in drivers"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: qla2xxx: Wait for stop_phase1 at WWN removal
scsi: hisi_sas: Drop free_irq() of devm_request_irq() allocated irq
scsi: vmw_pvscsi: Set correct residual data length
scsi: bnx2fc: Return failure if io_req is already in ABTS processing
scsi: aic7xxx: Remove multiple definition of globals
scsi: aic7xxx: Restore several defines for aic7xxx firmware build
scsi: target: iblock: Fix smp_processor_id() BUG messages
scsi: libsas: Use _safe() loop in sas_resume_port()
scsi: target: tcmu: Fix xarray RCU warning
scsi: target: core: Avoid smp_processor_id() in preemptible code
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Pull block fixes from Jens Axboe:
- NVMe pull request (Christoph):
- fix a memory leak in nvme_cdev_add (Guoqing Jiang)
- fix inline data size comparison in nvmet_tcp_queue_response (Hou
Pu)
- fix false keep-alive timeout when a controller is torn down
(Sagi Grimberg)
- fix a nvme-tcp Kconfig dependency (Sagi Grimberg)
- short-circuit reconnect retries for FC (Hannes Reinecke)
- decode host pathing error for connect (Hannes Reinecke)
- MD pull request (Song):
- Fix incorrect chunk boundary assert (Christoph)
- Fix s390/dasd verification panic (Stefan)
* tag 'block-5.13-2021-05-28' of git://git.kernel.dk/linux-block:
nvmet: fix false keep-alive timeout when a controller is torn down
nvmet-tcp: fix inline data size comparison in nvmet_tcp_queue_response
nvme-tcp: remove incorrect Kconfig dep in BLK_DEV_NVME
md/raid5: remove an incorrect assert in in_chunk_boundary
s390/dasd: add missing discipline function
nvme-fabrics: decode host pathing error for connect
nvme-fc: short-circuit reconnect retries
nvme: fix potential memory leaks in nvme_cdev_add
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Pull io_uring fixes from Jens Axboe:
"A few minor fixes:
- Fix an issue with hashed wait removal on exit (Zqiang, Pavel)
- Fix a recent data race introduced in this series (Marco)"
* tag 'io_uring-5.13-2021-05-28' of git://git.kernel.dk/linux-block:
io_uring: fix data race to avoid potential NULL-deref
io-wq: Fix UAF when wakeup wqe in hash waitqueue
io_uring/io-wq: close io-wq full-stop gap
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Pull drm fixes from Dave Airlie:
"Pretty quiet this week, couple of amdgpu, one i915, and a few misc otherwise.
ttm:
- prevent irrelevant swapout
amdgpu:
- MultiGPU fan fix
- VCN powergating fixes
amdkfd:
- Fix SDMA register offset error
meson:
- fix shutdown crash
i915:
- Re-enable LTTPR non-transparent LT mode for DPCD_REV < 1.4"
* tag 'drm-fixes-2021-05-29' of git://anongit.freedesktop.org/drm/drm:
drm/ttm: Skip swapout if ttm object is not populated
drm/i915: Reenable LTTPR non-transparent LT mode for DPCD_REV<1.4
drm/meson: fix shutdown crash when component not probed
drm/amdgpu/jpeg3: add cancel_delayed_work_sync before power gate
drm/amdgpu/jpeg2.5: add cancel_delayed_work_sync before power gate
drm/amdgpu/jpeg2.0: add cancel_delayed_work_sync before power gate
drm/amdgpu/vcn3: add cancel_delayed_work_sync before power gate
drm/amdgpu/vcn2.5: add cancel_delayed_work_sync before power gate
drm/amdgpu/vcn2.0: add cancel_delayed_work_sync before power gate
drm/amdgpu/vcn1: add cancel_delayed_work_sync before power gate
drm/amdkfd: correct sienna_cichlid SDMA RLC register offset error
drm/amd/pm: correct MGpuFanBoost setting
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fix error checking of BPF prog attachment in 'perf stat'.
- Fix getting maximum number of fds in the vendor events JSON parser.
- Move debug initialization earlier, fixing a segfault in some cases.
- Fix eventcode of power10 JSON events.
* tag 'perf-tools-fixes-for-v5.13-2021-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf vendor events powerpc: Fix eventcode of power10 JSON events
perf stat: Fix error check for bpf_program__attach
perf debug: Move debug initialization earlier
perf jevents: Fix getting maximum number of fds
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Pull cifs fixes from Steve French:
"Three SMB3 fixes.
Two for stable, and the other fixes a problem pointed out with a
recently added ioctl"
* tag '5.13-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: change format of CIFS_FULL_KEY_DUMP ioctl
cifs: fix string declarations and assignments in tracepoints
cifs: set server->cipher_type to AES-128-CCM for SMB3.0
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Pull NFS client bugfixes from Trond Myklebust:
"Stable fixes:
- Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config
- Fix Oops in xs_tcp_send_request() when transport is disconnected
- Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
Bugfixes:
- Fix instances where signal_pending() should be fatal_signal_pending()
- fix an incorrect limit in filelayout_decode_layout()
- Fixes for the SUNRPC backlogged RPC queue
- Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
- Revert commit 586a0787ce35 ("Clean up rpcrdma_prepare_readch()")"
* tag 'nfs-for-5.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: Remove trailing semicolon in macros
xprtrdma: Revert 586a0787ce35
NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config
NFS: Clean up reset of the mirror accounting variables
NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
SUNRPC: More fixes for backlog congestion
SUNRPC: Fix Oops in xs_tcp_send_request() when transport is disconnected
NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
SUNRPC in case of backlog, hand free slots directly to waiting task
pNFS/NFSv4: Remove redundant initialization of 'rd_size'
NFS: fix an incorrect limit in filelayout_decode_layout()
fs/nfs: Use fatal_signal_pending instead of signal_pending
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A slightly high volume at this time due to pending ASoC fixes.
While there are a few generic simple-card fixes for regressions, most
of the changes are device-specific fixes: ASoC Intel SOF, codec
clocks, other codec / platform fixes as well as usual HD-audio and
USB-audio"
* tag 'sound-5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (37 commits)
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 17 G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook Fury 15 G8
ALSA: hda/realtek: fix mute/micmute LEDs and speaker for HP Zbook G8
ALSA: hda/realtek: fix mute/micmute LEDs for HP 855 G8
ALSA: hda/realtek: Chain in pop reduction fixup for ThinkStation P340
ALSA: usb-audio: scarlett2: snd_scarlett_gen2_controls_create() can be static
ALSA: hda/realtek: the bass speaker can't output sound on Yoga 9i
ALSA: hda/realtek: Headphone volume is controlled by Front mixer
ALSA: usb-audio: scarlett2: Improve driver startup messages
ALSA: usb-audio: scarlett2: Fix device hang with ehci-pci
ALSA: usb-audio: fix control-request direction
ASoC: qcom: lpass-cpu: Use optional clk APIs
ASoC: cs35l33: fix an error code in probe()
ASoC: SOF: Intel: hda: don't send DAI_CONFIG IPC for older firmware
ASoC: fsl: fix SND_SOC_IMX_RPMSG dependency
ASoC: cs42l52: Minor tidy up of error paths
ASoC: cs35l32: Add missing regmap use_single config
ASoC: cs35l34: Add missing regmap use_single config
ASoC: cs42l73: Add missing regmap use_single config
ASoC: cs53l30: Add missing regmap use_single config
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull clang feature fixes from Kees Cook:
- Correctly pass stack frame size checking under LTO (Nick Desaulniers)
- Avoid CFI mismatches by checking initcall_t types (Marco Elver)
* tag 'clang-features-v5.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
Makefile: LTO: have linker check -Wframe-larger-than
init: verify that function is initcall_t at compile-time
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- fix function/preempt trace hangs
- a few build fixes
* tag 'mips-fixes_5.13_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER
MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c
MIPS: launch.h: add include guard to prevent build errors
MIPS: alchemy: xxs1500: add gpio-au1000.h header file
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.13, take #2
- Another state update on exit to userspace fix
- Prevent the creation of mixed 32/64 VMs
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ctxt->ud is consumed only by x86_decode_insn(), we can kill it off by
passing emulation_type to x86_decode_insn() and dropping ctxt->ud
altogether. Tracking that info in ctxt for literally one call is silly.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <1622160097-37633-2-git-send-email-wanpengli@tencent.com>
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Reported by syzkaller:
WARNING: CPU: 7 PID: 10526 at linux/arch/x86/kvm//x86.c:7621 x86_emulate_instruction+0x41b/0x510 [kvm]
RIP: 0010:x86_emulate_instruction+0x41b/0x510 [kvm]
Call Trace:
kvm_mmu_page_fault+0x126/0x8f0 [kvm]
vmx_handle_exit+0x11e/0x680 [kvm_intel]
vcpu_enter_guest+0xd95/0x1b40 [kvm]
kvm_arch_vcpu_ioctl_run+0x377/0x6a0 [kvm]
kvm_vcpu_ioctl+0x389/0x630 [kvm]
__x64_sys_ioctl+0x8e/0xd0
do_syscall_64+0x3c/0xb0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Commit 4a1e10d5b5d8 ("KVM: x86: handle hardware breakpoints during emulation())
adds hardware breakpoints check before emulation the instruction and parts of
emulation context initialization, actually we don't have the EMULTYPE_NO_DECODE flag
here and the emulation context will not be reused. Commit c8848cee74ff ("KVM: x86:
set ctxt->have_exception in x86_decode_insn()) triggers the warning because it
catches the stale emulation context has #UD, however, it is not during instruction
decoding which should result in EMULATION_FAILED. This patch fixes it by moving
the second part emulation context initialization into init_emulate_ctxt() and
before hardware breakpoints check. The ctxt->ud will be dropped by a follow-up
patch.
syzkaller source: https://syzkaller.appspot.com/x/repro.c?x=134683fdd00000
Reported-by: syzbot+71271244f206d17f6441@syzkaller.appspotmail.com
Fixes: 4a1e10d5b5d8 (KVM: x86: handle hardware breakpoints during emulation)
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <1622160097-37633-1-git-send-email-wanpengli@tencent.com>
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The kvm_get_linear_rip() handles x86/long mode cases well and has
better readability, __kvm_set_rflags() also use the paired
function kvm_is_linear_rip() to check the vcpu->arch.singlestep_rip
set in kvm_arch_vcpu_ioctl_set_guest_debug(), so change the
"CS.BASE + RIP" code in kvm_arch_vcpu_ioctl_set_guest_debug() and
handle_exception_nmi() to this one.
Signed-off-by: Yuan Yao <yuan.yao@intel.com>
Message-Id: <20210526063828.1173-1-yuan.yao@linux.intel.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The documentation had some previously incorrect information about how
userspace notifications (and responses) were handled due to a change
from a previously proposed patchset.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Acked-by: Tycho Andersen <tycho@tycho.pizza>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210517193908.3113-2-sargun@sargun.me
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Commit 5a517b5bf687 ("i2c: designware: Get rid of legacy platform data")
removes ./include/linux/platform_data/i2c-designware.h, but misses to
adjust the SYNOPSYS DESIGNWARE I2C DRIVER section in MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains:
warning: no file matches F: include/linux/platform_data/i2c-designware.h
Remove the file entry to this removed file as well.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Fixed the eventcode values in the power10 JSON event files to prepend
"0x" since these are hexadecimal values.
The patch also changes the event description of the PM_EXEC_STALL_LOAD_FINISH
and PM_EXEC_STALL_NTC_FLUSH event and move some events to correct files.
Fixes: 32daa5d7899e ("perf vendor events: Initial JSON/events list for power10 platform")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Reviewed-by: Paul A. Clarke <pc@us.ibm.com>
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lore.kernel.org/lkml/20210525063723.1191514-1-kjain@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This reverts commit 31fae7c8b18c3f8029a2a5dce97a3182c1a167a0.
Tony writes:
I just noticed this causes the following regression in Linux
next when pressing a key on uart console after boot at least on
omap3. This seems to happen on serial_port_in(port, UART_RX) in
the quirk handling.
So let's drop this.
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/YLCCJzkkB4N7LTQS@atomide.com
Fixes: 31fae7c8b18c ("serial: 8250: 8250_omap: Fix possible interrupt storm")
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Interrupt handler processes multiple message write requests one after
another, till the driver message queue is drained. However if driver
encounters a read message without preceding START, it stops the I2C
transfer as it is an invalid condition for the controller. At least the
comment describes a requirement "the controller forces us to send a new
START when we change direction". This stop results in clearing the
message queue (i2c->msg = NULL).
The code however immediately jumped back to label "retry_write" which
dereferenced the "i2c->msg" making it a possible NULL pointer
dereference.
The Coverity analysis:
1. Condition !is_msgend(i2c), taking false branch.
if (!is_msgend(i2c)) {
2. Condition !is_lastmsg(i2c), taking true branch.
} else if (!is_lastmsg(i2c)) {
3. Condition i2c->msg->flags & 1, taking true branch.
if (i2c->msg->flags & I2C_M_RD) {
4. write_zero_model: Passing i2c to s3c24xx_i2c_stop, which sets i2c->msg to NULL.
s3c24xx_i2c_stop(i2c, -EINVAL);
5. Jumping to label retry_write.
goto retry_write;
6. var_deref_model: Passing i2c to is_msgend, which dereferences null i2c->msg.
if (!is_msgend(i2c)) {"
All previous calls to s3c24xx_i2c_stop() in this interrupt service
routine are followed by jumping to end of function (acknowledging
the interrupt and returning). This seems a reasonable choice also here
since message buffer was entirely emptied.
Addresses-Coverity: Explicit null dereferenced
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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The i2c controller driver do dma reset after transfer timeout,
but sometimes dma reset will trigger an unexpected DMA_ERR irq.
It will cause the i2c controller to continuously send interrupts
to the system and cause soft lock-up. So we need to disable i2c
start_en and clear intr_stat to stop i2c controller before dma
reset when transfer timeout.
Fixes: aafced673c06("i2c: mediatek: move dma reset before i2c reset")
Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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ssh://git.freedesktop.org/git/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.13-rc4:
- Re-enable LTTPR non-transparent LT mode for DPCD_REV<1.4
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/875yz4bnmj.fsf@intel.com
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ssh://git.freedesktop.org/git/drm/drm-misc into drm-fixes
A fix in meson for a crash at shutdown and one for TTM to prevent
irrelevant swapout
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210527120828.3w7f53krzkslc4ii@gilmour
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It seems the bpf_program__attach() returns a negative error code instead
of a NULL pointer in case of error.
Fixes: 7fac83aaf2ee ("perf stat: Introduce 'bperf' to share hardware PMCs with BPF")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Link: http://lore.kernel.org/lkml/20210527220052.1657578-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.13-2021-05-26:
amdgpu:
- MultiGPU fan fix
- VCN powergating fixes
amdkfd:
- Fix SDMA register offset error
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210527031831.4057-1-alexander.deucher@amd.com
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git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
Pull percpu fixes from Dennis Zhou:
"This contains a cleanup to lib/percpu-refcount.c and an update to the
MAINTAINERS file to more formally take over support for lib/percpu*"
* 'for-5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
MAINTAINERS: Add lib/percpu* as part of percpu entry
percpu_ref: Don't opencode percpu_ref_is_dying
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Don't use contiguous or block mappings for the linear map when KFENCE
is enabled.
- Fix link in the arch_counter_enforce_ordering() comment.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: don't use CON and BLK mapping if KFENCE is enabled
arm64: Fix stale link in the arch_counter_enforce_ordering() comment
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM verity target's 'require_signatures' module_param permissions.
- Revert DM snapshot fix from v5.13-rc3 and then properly fix crash
when an origin has no snapshots. This allows only the proper fix to
go to stable@ (since the original fix was successfully dropped).
* tag 'for-5.13/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: properly fix a crash when an origin has no snapshots
dm snapshot: revert "fix a crash when an origin has no snapshots"
dm verity: fix require_signatures module_param permissions
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Make CIFS_FULL_KEY_DUMP ioctl able to return variable-length keys.
* userspace needs to pass the struct size along with optional
session_id and some space at the end to store keys
* if there is enough space kernel returns keys in the extra space and
sets the length of each key via xyz_key_length fields
This also fixes the build error for get_user() on ARM.
Sample program:
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
struct smb3_full_key_debug_info {
uint32_t in_size;
uint64_t session_id;
uint16_t cipher_type;
uint8_t session_key_length;
uint8_t server_in_key_length;
uint8_t server_out_key_length;
uint8_t data[];
/*
* return this struct with the keys appended at the end:
* uint8_t session_key[session_key_length];
* uint8_t server_in_key[server_in_key_length];
* uint8_t server_out_key[server_out_key_length];
*/
} __attribute__((packed));
#define CIFS_IOCTL_MAGIC 0xCF
#define CIFS_DUMP_FULL_KEY _IOWR(CIFS_IOCTL_MAGIC, 10, struct smb3_full_key_debug_info)
void dump(const void *p, size_t len) {
const char *hex = "0123456789ABCDEF";
const uint8_t *b = p;
for (int i = 0; i < len; i++)
printf("%c%c ", hex[(b[i]>>4)&0xf], hex[b[i]&0xf]);
putchar('\n');
}
int main(int argc, char **argv)
{
struct smb3_full_key_debug_info *keys;
uint8_t buf[sizeof(*keys)+1024] = {0};
size_t off = 0;
int fd, rc;
keys = (struct smb3_full_key_debug_info *)&buf;
keys->in_size = sizeof(buf);
fd = open(argv[1], O_RDONLY);
if (fd < 0)
perror("open"), exit(1);
rc = ioctl(fd, CIFS_DUMP_FULL_KEY, keys);
if (rc < 0)
perror("ioctl"), exit(1);
printf("SessionId ");
dump(&keys->session_id, 8);
printf("Cipher %04x\n", keys->cipher_type);
printf("SessionKey ");
dump(keys->data+off, keys->session_key_length);
off += keys->session_key_length;
printf("ServerIn Key ");
dump(keys->data+off, keys->server_in_key_length);
off += keys->server_in_key_length;
printf("ServerOut Key ");
dump(keys->data+off, keys->server_out_key_length);
return 0;
}
Usage:
$ gcc -o dumpkeys dumpkeys.c
Against Windows Server 2020 preview (with AES-256-GCM support):
# mount.cifs //$ip/test /mnt -o "username=administrator,password=foo,vers=3.0,seal"
# ./dumpkeys /mnt/somefile
SessionId 0D 00 00 00 00 0C 00 00
Cipher 0002
SessionKey AB CD CC 0D E4 15 05 0C 6F 3C 92 90 19 F3 0D 25
ServerIn Key 73 C6 6A C8 6B 08 CF A2 CB 8E A5 7D 10 D1 5B DC
ServerOut Key 6D 7E 2B A1 71 9D D7 2B 94 7B BA C4 F0 A5 A4 F8
# umount /mnt
With 256 bit keys:
# echo 1 > /sys/module/cifs/parameters/require_gcm_256
# mount.cifs //$ip/test /mnt -o "username=administrator,password=foo,vers=3.11,seal"
# ./dumpkeys /mnt/somefile
SessionId 09 00 00 00 00 0C 00 00
Cipher 0004
SessionKey 93 F5 82 3B 2F B7 2A 50 0B B9 BA 26 FB 8C 8B 03
ServerIn Key 6C 6A 89 B2 CB 7B 78 E8 04 93 37 DA 22 53 47 DF B3 2C 5F 02 26 70 43 DB 8D 33 7B DC 66 D3 75 A9
ServerOut Key 04 11 AA D7 52 C7 A8 0F ED E3 93 3A 65 FE 03 AD 3F 63 03 01 2B C0 1B D7 D7 E5 52 19 7F CC 46 B4
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
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Now that the i2c-i801 driver supports interrupts, setting the KILL bit
in a attempt to recover from a timed out transaction triggers an
interrupt. Unfortunately, the interrupt handler (i801_isr) is not
prepared for this situation and will try to process the interrupt as
if it was signaling the end of a successful transaction. In the case
of a block transaction, this can result in an out-of-range memory
access.
This condition was reproduced several times by syzbot:
https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e
https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e
https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e
https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb
https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a
https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79
So disable interrupts while trying to reset the bus. Interrupts will
be enabled again for the following transaction.
Fixes: 636752bcb517 ("i2c-i801: Enable IRQ for SMBus transactions")
Reported-by: syzbot+b4d3fd1dfd53e90afd79@syzkaller.appspotmail.com
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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The P2040/P2041 has an erratum where the normal i2c recovery mechanism
does not work. Implement the alternative recovery mechanism documented
in the P2040 Chip Errata Rev Q.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
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