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Juergen Gross b802b6ef28 xen/events: avoid handling the same event on two cpus at the same time 
commit b6622798bc50b625a1e62f82c7190df40c1f5b21 upstream.

When changing the cpu affinity of an event it can happen today that
(with some unlucky timing) the same event will be handled on the old
and the new cpu at the same time.

Avoid that by adding an "event active" flag to the per-event data and
call the handler only if this flag isn't set.

Cc: stable@vger.kernel.org
Reported-by: Julien Grall <julien@xen.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Link: https://lore.kernel.org/r/20210306161833.4552-4-jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:03:58 +01:00
..
accessibility
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acpi
ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807
2021-03-11 14:06:50 +01:00
amba
amba: Fix resource leak for drivers without .remove
2021-03-04 10:26:32 +01:00
android
binder: add flag to clear buffer on txn complete
2020-12-30 11:51:35 +01:00
ata
ata: ahci_brcm: Add back regulators management
2021-03-04 10:26:23 +01:00
atm
atm: idt77252: call pci_disable_device() on error path
2021-01-12 20:16:11 +01:00
auxdisplay
auxdisplay: ht16k33: Fix refresh rate handling
2021-03-04 10:26:30 +01:00
base
software node: Fix node registration
2021-03-17 17:03:48 +01:00
bcma
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block
zram: fix return value on writeback_store
2021-03-17 17:03:57 +01:00
bluetooth
Bluetooth: hci_h5: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for btrtl
2021-03-07 12:20:44 +01:00
bus
bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
2020-12-30 11:51:23 +01:00
cdrom
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char
tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality()
2021-03-09 11:09:36 +01:00
clk
clk: aspeed: Fix APLL calculate formula from ast2600-A2
2021-03-04 10:26:34 +01:00
clocksource
clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined
2021-03-04 10:26:29 +01:00
connector
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counter
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cpufreq
cpufreq: intel_pstate: Get per-CPU max freq via MSR_HWP_CAPABILITIES if available
2021-03-04 10:26:50 +01:00
cpuidle
cpuidle: Fixup IRQ state
2020-09-09 19:12:21 +02:00
crypto
crypto: sun4i-ss - initialize need_fallback
2021-03-04 10:26:45 +01:00
dax
device-dax/core: Fix memory leak when rmmod dax.ko
2020-12-30 11:51:46 +01:00
dca
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devfreq
PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
2020-10-01 13:17:14 +02:00
dio
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dma
dmaengine: hsu: disable spurious interrupt
2021-03-04 10:26:28 +01:00
dma-buf
dmabuf: fix use-after-free of dmabuf's file->f_inode
2021-01-12 20:16:23 +01:00
edac
EDAC/amd64: Fix PCI component registration
2020-12-30 11:51:36 +01:00
eisa
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extcon
extcon: max77693: Fix modalias string
2020-12-30 11:51:24 +01:00
firewire
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firmware
firmware: imx: select SOC_BUS to fix firmware build
2021-02-03 23:25:59 +01:00
fpga
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fsi
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gnss
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gpio
gpio: pcf857x: Fix missing first interrupt
2021-03-04 10:26:49 +01:00
gpu
qxl: Fix uninitialised struct field head.surface_id
2021-03-17 17:03:39 +01:00
greybus
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hid
HID: logitech-dj: add support for the new lightspeed connection iteration
2021-03-17 17:03:43 +01:00
hsi
HSI: Fix PM usage counter unbalance in ssi_hw_init
2021-03-04 10:26:26 +01:00
hv
Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind()
2021-03-04 10:26:24 +01:00
hwmon
hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values
2021-01-19 18:26:15 +01:00
hwspinlock
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hwtracing
stm class: Fix module init return on allocation failure
2021-01-27 11:47:50 +01:00
i2c
i2c: rcar: optimize cacheline to minimize HW race condition
2021-03-17 17:03:41 +01:00
i3c
i3c master: fix missing destroy_workqueue() on error in i3c_master_register
2021-01-06 14:48:40 +01:00
ide
scsi: ide: Do not set the RQF_PREEMPT flag for sense requests
2021-01-12 20:16:09 +01:00
idle
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iio
iio: ad5504: Fix setting power-down state
2021-01-27 11:47:48 +01:00
infiniband
IB/mlx5: Add missing error code
2021-03-09 11:09:38 +01:00
input
Input: applespi - don't wait for responses to commands indefinitely.
2021-03-17 17:03:44 +01:00
interconnect
interconnect: qcom: qcs404: Remove GPU and display RPM IDs
2020-12-16 10:56:56 +01:00
iommu
iommu/amd: Fix performance counter initialization
2021-03-17 17:03:43 +01:00
ipack
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irqchip
irqchip/mips-cpu: Set IPI domain parent chip
2021-01-27 11:47:49 +01:00
isdn
misdn: dsp: select CONFIG_BITREVERSE
2021-01-19 18:26:15 +01:00
leds
leds: trigger: fix potential deadlock with libata
2021-02-03 23:25:58 +01:00
lightnvm
lightnvm: fix memory leak when submit fails
2021-01-27 11:47:53 +01:00
macintosh
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mailbox
mailbox: avoid timer start from callback
2020-10-29 09:57:53 +01:00
mcb
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md
dm table: fix zoned iterate_devices based device capability checks
2021-03-11 14:06:49 +01:00
media
media: rc: compile rc-cec.c into rc-core
2021-03-17 17:03:40 +01:00
memory
memory: ti-aemif: Drop child node when jumping out loop
2021-03-04 10:26:14 +01:00
memstick
memstick: r592: Fix error return in r592_probe()
2020-12-30 11:51:18 +01:00
message
scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
2020-11-05 11:43:25 +01:00
mfd
mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
2021-03-04 10:26:33 +01:00
misc
misc: fastrpc: restrict user apps from sending kernel RPC messages
2021-03-17 17:03:52 +01:00
mmc
mmc: cqhci: Fix random crash when remove mmc module/card
2021-03-17 17:03:48 +01:00
mtd
mtd: spi-nor: hisi-sfc: Put child node np on error path
2021-03-04 10:26:48 +01:00
mux
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net
sh_eth: fix TRSCER mask for R7S72100
2021-03-17 17:03:55 +01:00
nfc
nfc: s3fwrn5: Release the nfc firmware
2020-12-30 11:51:26 +01:00
ntb
NTB: hw: amd: fix an issue about leak system resources
2020-10-29 09:58:00 +01:00
nubus
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nvdimm
libnvdimm/dimm: Avoid race between probe and available_slots_show()
2021-02-10 09:25:30 +01:00
nvme
nvme: release namespace head reference on error
2021-03-17 17:03:57 +01:00
nvmem
nvmem: core: skip child nodes not matching binding
2021-03-04 10:26:37 +01:00
of
of/fdt: Make sure no-map does not remove already reserved regions
2021-03-04 10:26:28 +01:00
opp
opp: Reduce the size of critical section in _opp_table_kref_release()
2020-11-18 19:20:21 +01:00
oprofile
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parisc
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parport
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pci
PCI: Fix pci_register_io_range() memory leak
2021-03-17 17:03:44 +01:00
pcmcia
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perf
drivers/perf: thunderx2_pmu: Fix memory resource error handling
2020-10-29 09:57:30 +01:00
phy
phy: rockchip-emmc: emmc_phy_init() always return 0
2021-03-04 10:26:36 +01:00
pinctrl
pinctrl: ingenic: Fix JZ4760 support
2021-01-27 11:47:52 +01:00
platform
Platform: OLPC: Fix probe error handling
2021-03-17 17:03:42 +01:00
pnp
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power
power: reset: at91-sama5d2_shdwc: fix wkupdbc mask
2021-03-04 10:26:28 +01:00
powercap
powercap: restrict energy meter to root access
2020-11-10 21:13:20 +01:00
pps
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ps3
powerpc/ps3: use dma_mapping_error()
2020-12-30 11:51:26 +01:00
ptp
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pwm
pwm: rockchip: rockchip_pwm_probe(): Remove superfluous clk_unprepare()
2021-03-04 10:26:36 +01:00
rapidio
rapidio: fix the missed put_device() for rio_mport_add_riodev
2020-10-29 09:57:53 +01:00
ras
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regulator
regulator: qcom-rpmh: fix pm8009 ldo7
2021-03-04 10:26:34 +01:00
remoteproc
remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()
2020-12-30 11:51:24 +01:00
reset
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rpmsg
rpmsg: glink: Use complete_all for open states
2020-11-05 11:43:20 +01:00
rtc
rtc: s5m: select REGMAP_I2C
2021-03-04 10:26:29 +01:00
s390
s390/dasd: fix hanging IO request during DASD driver unbind
2021-03-17 17:03:48 +01:00
sbus
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scsi
scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling
2021-03-17 17:03:45 +01:00
sfi
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sh
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siox
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slimbus
slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
2020-12-30 11:51:13 +01:00
soc
soc: aspeed: snoop: Add clock control logic
2021-03-04 10:26:16 +01:00
soundwire
soundwire: cadence: fix ACK/NAK handling
2021-03-04 10:26:36 +01:00
spi
spi: stm32: make spurious and overrun interrupts visible
2021-03-17 17:03:42 +01:00
spmi
spmi: spmi-pmic-arb: Fix hw_irq overflow
2021-03-04 10:26:49 +01:00
ssb
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staging
staging: comedi: pcl818: Fix endian problem for AI command data
2021-03-17 17:03:55 +01:00
target
scsi: target: core: Prevent underflow for service actions
2021-03-17 17:03:45 +01:00
tc
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tee
tee: optee: replace might_sleep with cond_resched
2021-02-03 23:25:58 +01:00
thermal
thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed
2021-01-06 14:48:35 +01:00
thunderbolt
thunderbolt: Fix use-after-free in remove_unplugged_switch()
2020-12-11 13:23:29 +01:00
tty
vt/consolemap: do font sum unsigned
2021-03-07 12:20:44 +01:00
uio
uio: Fix use-after-free in uio_unregister_device()
2020-11-18 19:20:29 +01:00
usb
usbip: fix vudc usbip_sockfd_store races leading to gpf
2021-03-17 17:03:52 +01:00
vfio
vfio/type1: Use follow_pte()
2021-03-04 10:26:38 +01:00
vhost
vhost_net: fix ubuf refcount incorrectly when sendmsg fails
2021-01-12 20:16:16 +01:00
video
udlfb: Fix memory leak in dlfb_usb_probe
2021-03-07 12:20:42 +01:00
virt
virt: vbox: Do not use wait_event_interruptible when called from kernel context
2021-03-04 10:26:10 +01:00
virtio
virtio_ring: Fix two use after free bugs
2020-12-30 11:51:29 +01:00
visorbus
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vlynq
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vme
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w1
w1: mxc_w1: Fix timeout resolution problem leading to bus error
2020-11-05 11:43:25 +01:00
watchdog
watchdog: mei_wdt: request stop on unregister
2021-03-04 10:26:47 +01:00
xen
xen/events: avoid handling the same event on two cpus at the same time
2021-03-17 17:03:58 +01:00
zorro
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Kconfig
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Makefile
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