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kernel_samsung_a53x/drivers
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Simon Arlott bd0d86f91e can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open 
commit 7dd9c26bd6cf679bcfdef01a8659791aa6487a29 upstream.

The mcp251x_hw_wake() function is called with the mpc_lock mutex held and
disables the interrupt handler so that no interrupts can be processed while
waking the device. If an interrupt has already occurred then waiting for
the interrupt handler to complete will deadlock because it will be trying
to acquire the same mutex.

CPU0                           CPU1
----                           ----
mcp251x_open()
 mutex_lock(&priv->mcp_lock)
  request_threaded_irq()
                               <interrupt>
                               mcp251x_can_ist()
                                mutex_lock(&priv->mcp_lock)
  mcp251x_hw_wake()
   disable_irq() <-- deadlock

Use disable_irq_nosync() instead because the interrupt handler does
everything while holding the mutex so it doesn't matter if it's still
running.

Fixes: 8ce8c0abcba3 ("can: mcp251x: only reset hardware as required")
Signed-off-by: Simon Arlott <simon@octiron.net>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/4fc08687-1d80-43fe-9f0d-8ef8475e75f6@0882a8b5-c6c3-11e9-b005-00805fc181fe.uuid.home.arpa
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:00 +01:00
..
accessibility speakup: Fix sizeof() vs ARRAY_SIZE() bug 2024-11-19 12:26:51 +01:00
acpi ACPI: SBS: manage alarm sysfs attribute through psy core 2024-11-23 23:20:23 +01:00
amba
android binder: fix hang of unregistered readers 2024-11-23 23:20:14 +01:00
ata ata: libata: Fix memory leak for error path in ata_host_alloc() 2024-11-23 23:21:00 +01:00
atm atm: idt77252: prevent use after free in dequeue_rx() 2024-11-23 23:20:43 +01:00
auxdisplay
base driver core: Fix uevent_show() vs driver detach race 2024-11-23 23:20:28 +01:00
battery
bcma
block rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings 2024-11-23 23:20:16 +01:00
bluetooth Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO 2024-11-23 23:20:50 +01:00
bts
bus bus: tegra-aconnect: Update dependency to ARCH_TEGRA 2024-11-19 08:44:45 +01:00
cdrom
char hwrng: amd - Convert PCIBIOS_* return codes to errnos 2024-11-23 23:20:14 +01:00
clk clk: qcom: clk-alpha-pll: Fix the trion pll postdiv set rate API 2024-11-23 23:21:00 +01:00
clocksource clocksource/drivers/sh_cmt: Address race condition for clock events 2024-11-23 23:20:23 +01:00
connector
counter counter: ti-eqep: enable clock at probe 2024-11-19 14:19:33 +01:00
cpufreq cpufreq: exit() callback is optional 2024-11-19 12:26:54 +01:00
cpuidle cpuidle: menu: Take negative "sleep length" values into account 2024-11-19 18:01:28 +01:00
crypto crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak 2024-11-19 12:27:18 +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 firmware: turris-mox-rwtm: Initialize completion before mailbox 2024-11-23 23:20:06 +01:00
fpga fpga: region: add owner module and take its refcount 2024-11-19 12:27:04 +01:00
fsi
gnss
gpio gpiolib: cdev: Disallow reconfiguration without direction (uAPI v1) 2024-11-19 14:19:33 +01:00
gpu drm/amd/pm: Fix the null pointer dereference for vega10_hwmgr 2024-11-23 23:20:59 +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: microsoft: Add rumble support to latest xbox controllers 2024-11-23 23:20:49 +01:00
hsi
hv Drivers: hv: vmbus: Drop error message when 'No request id available' 2024-11-18 23:19:53 +01:00
hwmon hwmon: (max6697) Fix swapped temp{1,8} critical alarms 2024-11-23 23:19:57 +01:00
hwspinlock hwspinlock: Introduce hwspin_lock_bust() 2024-11-23 23:20:58 +01:00
hwtracing coresight: Fix ref leak when of_coresight_parse_endpoint() fails 2024-11-23 23:20:10 +01:00
i2c i2c: riic: avoid potential division by zero 2024-11-23 23:20:44 +01:00
i3c i3c: master: cdns: Update maximum prescaler value for i2c clock 2024-11-18 12:13:19 +01:00
ide
idle
ifconn
iio iio: chemical: bme680: Fix sensor data read operation 2024-11-19 14:19:33 +01:00
infiniband IB/hfi1: Fix potential deadlock on &irq_src_lock and &dd->uctxt_lock 2024-11-23 23:20:45 +01:00
input Revert "Input: ioc3kbd - convert to platform remove callback returning void" 2024-11-23 23:20:54 +01:00
interconnect interconnect: Treat xlate() returning NULL node as an error 2024-11-18 12:12:00 +01:00
iommu iommu: pcie: Fix incorrect kmemleak_ignore() usage 2024-11-19 17:53:28 +01:00
ipack
irqchip irqchip/gic-v2m: Fix refcount leak in gicv2m_of_init() 2024-11-23 23:21:00 +01:00
isdn mISDN: Fix a use after free in hfcmulti_tx() 2024-11-23 23:20:17 +01:00
kperfmon
kq/mesh
leds leds: ss4200: Convert PCIBIOS_* return codes to errnos 2024-11-23 23:20:13 +01:00
lightnvm
macintosh macintosh/therm_windtunnel: fix module unload. 2024-11-23 23:20:11 +01:00
mailbox mailbox: imx: fix suspend failue 2024-11-19 11:32:20 +01:00
mcb
md dm suspend: return -ERESTARTSYS instead of -EINTR 2024-11-23 23:20:47 +01:00
media media: uvcvideo: Enforce alignment of frame and interval 2024-11-23 23:20:58 +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 uid_sys_stats: Remove dependency on the profiling subsystem 2024-11-19 17:53:52 +01:00
mmc mmc: sdhci-of-aspeed: fix module autoloading 2024-11-23 23:21:00 +01:00
most
mtd ubi: eba: properly rollback inside self_check_eba 2024-11-23 23:20:14 +01:00
muic
mux
net can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open 2024-11-23 23:21:00 +01:00
nfc nfc: pn533: Add poll mod list filling check 2024-11-23 23:20:55 +01:00
ntb
nubus
nvdimm
nvme nvmet-rdma: fix possible bad dereference when freeing rsps 2024-11-23 23:20:47 +01:00
nvmem nvmem: meson-efuse: Fix return value of nvmem callbacks 2024-11-19 14:19:45 +01:00
of of: dynamic: Synchronize of_changeset_destroy() with the devlink removals 2024-11-19 09:23:10 +01:00
opp OPP: debugfs: Fix warning around icc_get_name() 2024-11-19 08:44:49 +01:00
oprofile
parisc
parport dev/parport: fix the array out-of-bounds risk 2024-11-23 23:20:14 +01:00
pci PCI: al: Check IORESOURCE_BUS existence during probe 2024-11-23 23:20:58 +01:00
pcmcia
perf
phy phy: tegra: xusb: Add API to retrieve the port number of phy 2024-11-19 09:22:34 +01:00
pinctrl pinctrl: single: fix potential NULL dereference in pcs_get_function() 2024-11-23 23:20:53 +01:00
platform platform/chrome: cros_ec_proto: Lock device when updating MKBP version 2024-11-23 23:20:20 +01:00
pnp PNP: ACPI: fix fortify warning 2024-11-18 12:13:09 +01:00
power power: supply: axp288_charger: Round constant_charge_voltage writes down 2024-11-23 23:20:29 +01:00
powercap
pps
ps3
ptp ptp: Fix error message on failed pin verification 2024-11-19 14:19:01 +01:00
pwm pwm: stm32: Always do lazy disabling 2024-11-23 23:19:56 +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 reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning 2024-11-18 12:12:16 +01:00
rpmsg rpmsg: virtio: Free driver_override when rpmsg_remove() 2024-11-18 12:12:56 +01:00
rtc rtc: isl1208: Fix return value of nvmem callbacks 2024-11-23 23:20:15 +01:00
s390 s390/cio: rename bitmap_size() -> idset_bitmap_size() 2024-11-23 23:20:43 +01:00
samsung
sbus
scsi scsi: aacraid: Fix double-free on probe failure 2024-11-23 23:20:55 +01:00
sensorhub
sensors
sfi
sh
siox
slimbus slimbus: core: Remove usage of the deprecated ida_simple_xx() API 2024-11-19 09:22:34 +01:00
soc soc: qcom: cmd-db: Map shared memory as WC, not WB 2024-11-23 23:20:55 +01:00
soundwire soundwire: stream: fix programming slave ports for non-continous port maps 2024-11-23 23:20:54 +01:00
spi spi: spi-fsl-lpspi: Fix scldiv calculation 2024-11-23 23:20:27 +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 staging: ks7010: disable bh on tx_dev_lock 2024-11-23 23:20:44 +01:00
sti
target target/file: allocate the bvec array as part of struct target_core_file_cmd 2024-11-19 17:42:15 +01:00
tc
tee tee: optee: Fix kernel panic caused by incorrect error handling 2024-11-19 09:22:39 +01:00
thermal
thunderbolt thunderbolt: Mark XDomain as unplugged when router is removed 2024-11-23 23:20:42 +01:00
tty serial: core: check uartclk for zero to avoid divide by zero 2024-11-23 23:20:29 +01:00
uh
uio uio: Fix use-after-free in uio_open 2024-11-18 12:12:19 +01:00
usb usb: typec: ucsi: Fix null pointer dereference in trace 2024-11-23 23:20:58 +01:00
vdpa
vfio vfio/fsl-mc: Block calling interrupt handler without trigger 2024-11-19 09:22:45 +01:00
vhost vhost-vdpa: switch to use vmf_insert_pfn() in the fault handler 2024-11-23 23:20:31 +01:00
vibrator
video Optimized Console FrameBuffer for upto 70% increase in Performance 2024-11-19 17:30:21 +01:00
virt
virtio virtio: delete vq in vp_find_vqs_msix() when request_irq() fails 2024-11-19 12:27:09 +01:00
vision
vision3
visorbus
vlynq
vme
w1
watchdog watchdog: rti_wdt: Set min_hw_heartbeat_ms to accommodate a safety margin 2024-11-19 12:27:18 +01:00
xen xen/events: close evtchn after mapping cleanup 2024-11-19 09:22:39 +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