Marc Zyngier ed3f47340e irqchip/gic-v3: Force propagation of the active state with a read-back ... commit 464cb98f1c07298c4c10e714ae0c36338d18d316 upstream. Christoffer reports that on some implementations, writing to GICR_ISACTIVER0 (and similar GICD registers) can race badly with a guest issuing a deactivation of that interrupt via the system register interface. There are multiple reasons to this: - this uses an early write-acknoledgement memory type (nGnRE), meaning that the write may only have made it as far as some interconnect by the time the store is considered "done" - the GIC itself is allowed to buffer the write until it decides to take it into account (as long as it is in finite time) The effects are that the activation may not have taken effect by the time the kernel enters the guest, forcing an immediate exit, or that a guest deactivation occurs before the interrupt is active, doing nothing. In order to guarantee that the write to the ISACTIVER register has taken effect, read back from it, forcing the interconnect to propagate the write, and the GIC to process the write before returning the read. Reported-by: Christoffer Dall <christoffer.dall@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Christoffer Dall <christoffer.dall@arm.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/20241106084418.3794612-1-maz@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-11-30 02:33:26 +01:00
..
accessibility	speakup: Fix sizeof() vs ARRAY_SIZE() bug	2024-11-19 12:26:51 +01:00
acpi	Revert "ACPI: processor: Return an error if acpi_processor_get_info() fails in processor_add()"	2024-11-24 00:23:37 +01:00
amba
android	Revert "binder: fix UAF caused by offsets overwrite"	2024-11-24 00:23:38 +01:00
ata	Revert "ata: libata-core: Fix null pointer dereference on error"	2024-11-24 00:23:50 +01:00
atm	atm: idt77252: prevent use after free in dequeue_rx()	2024-11-23 23:20:43 +01:00
auxdisplay
base	Revert "devres: Initialize an uninitialized struct member"	2024-11-24 00:23:40 +01:00
battery
bcma
block	zram: Set default compressor to zstd	2024-11-30 02:02:54 +01:00
bluetooth	Revert "Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO"	2024-11-24 00:23:50 +01:00
bts
bus	Revert "bus: integrator-lm: fix OF node leak in probe()"	2024-11-24 00:23:16 +01:00
cdrom
char	Revert "tpm: Clean up TPM space after command failure"	2024-11-24 00:23:24 +01:00
clk	Revert "clk: imx: imx8mp: fix clock tree update of TF-A managed clocks"	2024-11-24 00:23:22 +01:00
clocksource	Revert "clocksource/drivers/imx-tpm: Fix return -ETIME when delta exceeds INT_MAX"	2024-11-24 00:23:37 +01:00
connector
counter	counter: ti-eqep: enable clock at probe	2024-11-19 14:19:33 +01:00
cpufreq	Revert "cpufreq: ti-cpufreq: Introduce quirks to handle syscon fails appropriately"	2024-11-24 00:23:30 +01:00
cpuidle	cpuidle: menu: Take negative "sleep length" values into account	2024-11-19 18:01:28 +01:00
crypto	Revert "crypto: ccp - Properly unregister /dev/sev on sev PLATFORM_STATUS failure"	2024-11-24 00:23:16 +01:00
dax
dca
devfreq	PM / devfreq: Fix buffer overflow in trans_stat_show	2024-11-19 11:32:38 +01:00
dio
dma	dmaengine: dw: Add memory bus width verification	2024-11-23 23:20:55 +01:00
dma-buf	dma-buf/sync_file: Speed up ioctl by omitting debug names	2024-11-19 17:53:23 +01:00
edac	EDAC, i10nm: make skx_common.o a separate module	2024-11-23 23:19:56 +01:00
eisa
extcon	extcon: max8997: select IRQ_DOMAIN instead of depending on it	2024-11-19 12:27:04 +01:00
fingerprint
firewire	firewire: nosy: ensure user_length is taken into account when fetching packet contents	2024-11-19 11:32:46 +01:00
firmware	Revert "efistub/tpm: Use ACPI reclaim memory for event log to avoid corruption"	2024-11-24 00:23:16 +01:00
fpga	fpga: region: add owner module and take its refcount	2024-11-19 12:27:04 +01:00
fsi
gnss
gpio	Revert "gpio: prevent potential speculation leaks in gpio_device_get_desc()"	2024-11-24 00:23:32 +01:00
gpu	drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported	2024-11-30 02:33:24 +01:00
greybus	greybus: Fix use-after-free bug in gb_interface_release due to race condition.	2024-11-19 14:19:05 +01:00
gud
hid	HID: core: zero-initialize the report buffer	2024-11-30 02:33:21 +01:00
hsi
hv	Revert "Drivers: hv: vmbus: Fix rescind handling in uio_hv_generic"	2024-11-24 00:23:37 +01:00
hwmon	Revert "hwmon: (adc128d818) Fix underflows seen when writing limit attributes"	2024-11-24 00:23:40 +01:00
hwspinlock	Revert "hwspinlock: Introduce hwspin_lock_bust()"	2024-11-24 00:23:48 +01:00
hwtracing	Revert "coresight: tmc: sg: Do not leak sg_table"	2024-11-24 00:23:19 +01:00
i2c	Revert "i2c: Add i2c_get_match_data()"	2024-11-24 00:23:27 +01:00
i3c
ide
idle
ifconn
iio	Revert "iio: buffer-dmaengine: fix releasing dma channel on error"	2024-11-24 00:23:38 +01:00
infiniband	Revert "RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency"	2024-11-24 00:23:21 +01:00
input	Revert "Input: uinput - reject requests with unreasonable number of slots"	2024-11-24 00:23:39 +01:00
interconnect	Revert "interconnect: qcom: sm8250: Enable sync_state"	2024-11-24 00:23:19 +01:00
iommu	Revert "iommu: sun50i: clear bypass register"	2024-11-24 00:23:43 +01:00
ipack
irqchip	irqchip/gic-v3: Force propagation of the active state with a read-back	2024-11-30 02:33:26 +01:00
isdn	mISDN: Fix a use after free in hfcmulti_tx()	2024-11-23 23:20:17 +01:00
kperfmon
kq/mesh
leds	Revert "leds: spi-byte: Call of_node_put() on error path"	2024-11-24 00:23:43 +01:00
lightnvm
macintosh	macintosh/therm_windtunnel: fix module unload.	2024-11-23 23:20:11 +01:00
mailbox	Revert "mailbox: rockchip: fix a typo in module autoloading"	2024-11-24 00:23:13 +01:00
mcb
md	dm-unstriped: cast an operand to sector_t to prevent potential uint32_t overflow	2024-11-30 02:33:24 +01:00
media	media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format	2024-11-30 02:33:26 +01:00
memory	memory: stm32-fmc2-ebi: check regmap_read return value	2024-11-23 23:20:46 +01:00
memstick
message
mfd	mfd: omap-usb-tll: Use struct_size to allocate tll	2024-11-23 23:20:09 +01:00
misc	drivers: samsung: scsc: Adapt scsc_wlbtd.c for Linux 5.10.229	2024-11-24 00:42:20 +01:00
mmc	Revert "mmc: mmc_test: Fix NULL dereference on allocation failure"	2024-11-24 00:23:50 +01:00
most
mtd	Revert "mtd: slram: insert break after errors in parsing the map"	2024-11-24 00:23:27 +01:00
muic
mux
net	net: arc: fix the device for dma_map_single/dma_unmap_single	2024-11-30 02:33:22 +01:00
nfc	nfc: pn533: Add poll mod list filling check	2024-11-23 23:20:55 +01:00
ntb	Revert "ntb: intel: Fix the NULL vs IS_ERR() bug for debugfs_create_dir()"	2024-11-24 00:23:20 +01:00
nubus
nvdimm	Revert "virtio_pmem: Check device status before requesting flush"	2024-11-24 00:22:58 +01:00
nvme	Revert "nvme/pci: Add APST quirk for Lenovo N60z laptop"	2024-11-24 00:23:54 +01:00
nvmem	Revert "nvmem: Fix return type of devm_nvmem_device_get() in kerneldoc"	2024-11-24 00:23:38 +01:00
of	Revert "of/irq: Prevent device address out-of-bounds read in interrupt map walk"	2024-11-24 00:23:38 +01:00
opp
oprofile
parisc
parport	Revert "parport: Proper fix for array out-of-bounds access"	2024-11-24 00:22:51 +01:00
pci	Revert "PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)"	2024-11-24 00:23:42 +01:00
pcmcia	Revert "pcmcia: Use resource_size function on resource object"	2024-11-24 00:23:42 +01:00
perf
phy
pinctrl	Revert "pinctrl: rockchip: correct RK3328 iomux width flag for GPIO2-B pins"	2024-11-24 00:23:50 +01:00
platform	platform/x86: touchscreen_dmi: add nanote-next quirk	2024-11-23 23:21:40 +01:00
pnp
power	Revert "power: supply: axp20x_battery: allow disabling battery charging"	2024-11-24 00:23:27 +01:00
powercap	Revert "powercap: RAPL: fix invalid initialization for pl4_supported field"	2024-11-24 00:23:18 +01:00
pps	Revert "pps: remove usage of the deprecated ida_simple_xx() API"	2024-11-24 00:23:14 +01:00
ps3
ptp	ptp: Fix error message on failed pin verification	2024-11-19 14:19:01 +01:00
pwm	pwm: imx-tpm: Use correct MODULO value for EPWM mode	2024-11-30 02:33:24 +01:00
rapidio
ras
regulator	regulator: core: Fix modpost error "regulator_get_regmap" undefined	2024-11-19 14:19:09 +01:00
remoteproc	remoteproc: imx_rproc: Skip over memory region when node value is NULL	2024-11-23 23:20:20 +01:00
reset	Revert "reset: berlin: fix OF node leak in probe() error path"	2024-11-24 00:23:27 +01:00
rpmsg
rtc	Revert "rtc: at91sam9: fix OF node leak in probe() error path"	2024-11-24 00:23:01 +01:00
s390	Revert "s390/zcore: no need to check return value of debugfs_create functions"	2024-11-24 00:22:59 +01:00
samsung
sbus
scsi	scsi: sd_zbc: Use kvzalloc() to allocate REPORT ZONES buffer	2024-11-30 02:33:23 +01:00
sensorhub
sensors
sfi
sh
siox
slimbus
soc	Revert "soc: versatile: integrator: fix OF node leak in probe() error path"	2024-11-24 00:23:17 +01:00
soundwire	Revert "soundwire: stream: fix programming slave ports for non-continous port maps"	2024-11-24 00:23:49 +01:00
spi	spi: Fix deadlock when adding SPI controllers on SPI buses	2024-11-30 02:33:25 +01:00
spmi
spu_verify
ssb	ssb: Fix division by zero issue in ssb_calc_clock_rate	2024-11-23 23:20:44 +01:00
staging	Revert "staging: iio: frequency: ad9834: Validate frequency parameter value"	2024-11-24 00:23:38 +01:00
sti
target	scsi: target: core: Fix null-ptr-deref in target_alloc_device()	2024-11-23 23:21:59 +01:00
tc
tee
thermal
thunderbolt	thunderbolt: Mark XDomain as unplugged when router is removed	2024-11-23 23:20:42 +01:00
tty	Revert "tty: rp2: Fix reset with non forgiving PCIe host bridges"	2024-11-24 00:23:16 +01:00
uh
uio	Revert "uio_hv_generic: Fix kernel NULL pointer dereference in hv_uio_rescind"	2024-11-24 00:23:37 +01:00
usb	USB: serial: option: add Quectel RG650V	2024-11-30 02:33:26 +01:00
vdpa
vfio
vhost	Revert "vdpa: Add eventfd for the vdpa callback"	2024-11-24 00:23:19 +01:00
vibrator
video	Revert "fbdev: hpfb: Fix an error handling path in hpfb_dio_probe()"	2024-11-24 00:23:26 +01:00
virt
virtio	Revert "vdpa: Add eventfd for the vdpa callback"	2024-11-24 00:23:19 +01:00
vision
vision3
visorbus
vlynq
vme
w1
watchdog	watchdog: s3c2410_wdt: Assign s3c_wdt[] until probe complete	2024-11-30 02:18:58 +01:00
xen	Revert "xen/swiotlb: add alignment check for dma buffers"	2024-11-24 00:23:24 +01:00
zorro
Kconfig	Added KernelSU	2024-11-19 22:44:48 +01:00
Kconfig.variant1
kernelsu	Added KernelSU	2024-11-19 22:44:48 +01:00
Makefile	Added KernelSU	2024-11-19 22:44:48 +01:00
Makefile.variant1