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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/drivers
История
Simon Arlott 513c8fc189 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: 8ce8c0abcb ("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>
 		2024-09-12 11:07:44 +02:00
..
accessibility speakup: Fix sizeof() vs ARRAY_SIZE() bug 2024-06-16 13:39:11 +02:00
acpi ACPI: SBS: manage alarm sysfs attribute through psy core 2024-08-19 05:45:37 +02:00
amba
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android binder: fix hang of unregistered readers 2024-08-19 05:45:16 +02:00
ata ata: libata: Fix memory leak for error path in ata_host_alloc() 2024-09-12 11:07:43 +02:00
atm atm: idt77252: prevent use after free in dequeue_rx() 2024-09-04 13:23:18 +02:00
auxdisplay
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base driver core: Fix uevent_show() vs driver detach race 2024-08-19 05:45:45 +02:00
bcma
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block rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings 2024-08-19 05:45:22 +02:00
bluetooth Bluetooth: hci_ldisc: check HCI_UART_PROTO_READY flag in HCIUARTGETPROTO 2024-09-04 13:23:37 +02:00
bus bus: tegra-aconnect: Update dependency to ARCH_TEGRA 2024-03-26 18:21:19 -04:00
cdrom
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char char: xillybus: Check USB endpoints when probing device 2024-09-04 13:23:15 +02:00
clk clk: qcom: clk-alpha-pll: Fix the trion pll postdiv set rate API 2024-09-12 11:07:44 +02:00
clocksource clocksource/drivers/arm_global_timer: Guard against division by zero 2024-09-04 13:23:25 +02:00
comedi comedi: vmk80xx: fix incomplete endpoint checking 2024-04-27 17:05:26 +02:00
connector
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counter
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cpufreq cpufreq: scmi: Avoid overflow of target_freq in fast switch 2024-09-12 11:07:41 +02:00
cpuidle cpuidle: Avoid potential overflow in integer multiplication 2024-04-13 13:01:43 +02:00
crypto crypto: hisilicon/sec - Fix memory leak for sec resource release 2024-07-05 09:14:24 +02:00
cxl cxl/mem: Fix shutdown order 2023-11-20 11:08:27 +01:00
dax
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dca
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devfreq PM / devfreq: Synchronize devfreq_monitor_[start/stop] 2024-02-23 08:54:38 +01:00
dio
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dma dmaengine: dw: Add memory bus width verification 2024-09-04 13:23:40 +02:00
dma-buf dma-buf/sw-sync: don't enable IRQ from sync_print_obj() 2024-06-16 13:39:49 +02:00
edac EDAC, i10nm: make skx_common.o a separate module 2024-08-19 05:44:49 +02:00
eisa
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extcon extcon: max8997: select IRQ_DOMAIN instead of depending on it 2024-06-16 13:39:39 +02:00
firewire firewire: nosy: ensure user_length is taken into account when fetching packet contents 2024-05-17 11:51:01 +02:00
firmware firmware: turris-mox-rwtm: Initialize completion before mailbox 2024-08-19 05:44:55 +02:00
fpga fpga: region: add owner module and take its refcount 2024-06-16 13:39:38 +02:00
fsi
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gnss
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gpio gpiolib: of: add polarity quirk for TSC2005 2024-07-18 13:07:32 +02:00
gpu drm/amd/pm: Fix the null pointer dereference for vega10_hwmgr 2024-09-12 11:07:42 +02:00
greybus greybus: Fix use-after-free bug in gb_interface_release due to race condition. 2024-07-05 09:14:23 +02:00
hid HID: microsoft: Add rumble support to latest xbox controllers 2024-09-04 13:23:36 +02:00
hsi
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hv
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hwmon hwmon: (ltc2992) Fix memory leak in ltc2992_parse_dt() 2024-09-04 13:23:36 +02:00
hwspinlock hwspinlock: Introduce hwspin_lock_bust() 2024-09-12 11:07:41 +02:00
hwtracing coresight: Fix ref leak when of_coresight_parse_endpoint() fails 2024-08-19 05:45:04 +02:00
i2c i2c: riic: avoid potential division by zero 2024-09-04 13:23:20 +02:00
i3c i3c: mipi-i3c-hci: Do not unmap region not mapped for transfer 2024-09-04 13:23:21 +02:00
idle
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iio iio: chemical: bme680: Fix sensor data read operation 2024-07-05 09:14:46 +02:00
infiniband RDMA/efa: Properly handle unexpected AQ completions 2024-09-12 11:07:41 +02:00
input Input: MT - limit max slots 2024-09-04 13:23:37 +02:00
interconnect Revert "interconnect: Teach lockdep about icc_bw_lock order" 2024-03-06 14:38:50 +00:00
iommu iommu: sprd: Avoid NULL deref in sprd_iommu_hw_en 2024-08-19 05:45:26 +02:00
ipack
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irqchip irqchip/gic-v2m: Fix refcount leak in gicv2m_of_init() 2024-09-12 11:07:43 +02:00
isdn mISDN: Fix a use after free in hfcmulti_tx() 2024-08-19 05:45:25 +02:00
leds leds: triggers: Flush pending brightness before activating trigger 2024-08-19 05:45:29 +02:00
macintosh macintosh/therm_windtunnel: fix module unload. 2024-08-19 05:45:06 +02:00
mailbox mailbox: arm_mhuv2: Fix a bug for mhuv2_sender_interrupt 2024-02-23 08:54:50 +01:00
mcb mcb: fix error handling for different scenarios when parsing 2023-11-28 16:56:31 +00:00
md dm suspend: return -ERESTARTSYS instead of -EINTR 2024-09-04 13:23:31 +02:00
media media: uvcvideo: Enforce alignment of frame and interval 2024-09-12 11:07:42 +02:00
memory memory: stm32-fmc2-ebi: check regmap_read return value 2024-09-04 13:23:25 +02:00
memstick
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message
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mfd mfd: omap-usb-tll: Use struct_size to allocate tll 2024-08-19 05:45:03 +02:00
misc mei: demote client disconnect warning on suspend to debug 2024-07-27 10:46:10 +02:00
mmc mmc: cqhci: Fix checking of CQHCI_HALT state 2024-09-12 11:07:43 +02:00
most
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mtd ubi: eba: properly rollback inside self_check_eba 2024-08-19 05:45:16 +02:00
mux
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net can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open 2024-09-12 11:07:44 +02:00
nfc nfc: pn533: Add poll mod list filling check 2024-09-04 13:23:40 +02:00
ntb NTB: fix possible name leak in ntb_register_device() 2024-03-26 18:21:28 -04:00
nubus
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nvdimm nd_btt: Make BTT lanes preemptible 2023-11-20 11:08:22 +01:00
nvme nvme-pci: Add sleep quirk for Samsung 990 Evo 2024-09-12 11:07:43 +02:00
nvmem nvmem: core: only change name to fram for current attribute 2024-07-18 13:07:42 +02:00
of cma: factor out minimum alignment requirement 2024-07-05 09:14:13 +02:00
opp OPP: debugfs: Fix warning around icc_get_name() 2024-03-26 18:21:23 -04:00
parisc
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parport dev/parport: fix the array out-of-bounds risk 2024-08-19 05:45:16 +02:00
pci PCI: al: Check IORESOURCE_BUS existence during probe 2024-09-12 11:07:41 +02:00
pcmcia pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() 2023-11-20 11:08:27 +01:00
perf perf: hisi: Fix use-after-free when register pmu fails 2023-11-20 11:08:21 +01:00
phy phy: zynqmp: Enable reference clock correctly 2024-09-04 13:23:42 +02:00
pinctrl pinctrl: single: fix potential NULL dereference in pcs_get_function() 2024-09-04 13:23:37 +02:00
platform platform/surface: aggregator: Fix warning when controller is destroyed in probe 2024-09-04 13:23:31 +02:00
pnp PNP: ACPI: fix fortify warning 2024-02-23 08:54:38 +01:00
power power: supply: axp288_charger: Round constant_charge_voltage writes down 2024-08-19 05:45:46 +02:00
powercap
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pps
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ps3
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ptp ptp: fix integer overflow in max_vclocks_store 2024-07-05 09:14:31 +02:00
pwm pwm: stm32: Always do lazy disabling 2024-08-19 05:44:51 +02:00
rapidio
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ras
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regulator regulator: bd71815: fix ramp values 2024-07-05 09:14:33 +02:00
remoteproc remoteproc: imx_rproc: Fix refcount mistake in imx_rproc_addr_init 2024-08-19 05:45:30 +02:00
reset reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning 2024-01-25 14:52:30 -08:00
rpmsg rpmsg: virtio: Free driver_override when rpmsg_remove() 2024-02-23 08:54:24 +01:00
rtc rtc: isl1208: Fix return value of nvmem callbacks 2024-08-19 05:45:20 +02:00
s390 bitmap: introduce generic optimized bitmap_size() 2024-09-04 13:23:16 +02:00
sbus
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scsi scsi: aacraid: Fix double-free on probe failure 2024-09-04 13:23:42 +02:00
sh
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siox
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slimbus slimbus: qcom-ngd-ctrl: Add timeout for wait operation 2024-05-17 11:51:04 +02:00
soc soc: qcom: cmd-db: Map shared memory as WC, not WB 2024-09-04 13:23:40 +02:00
soundwire soundwire: stream: fix programming slave ports for non-continous port maps 2024-09-04 13:23:39 +02:00
spi spi: spi-fsl-lpspi: Fix scldiv calculation 2024-08-19 05:45:42 +02:00
spmi spmi: hisi-spmi-controller: Do not override device identifier 2024-07-05 09:14:20 +02:00
ssb ssb: Fix division by zero issue in ssb_calc_clock_rate 2024-09-04 13:23:20 +02:00
staging staging: ks7010: disable bh on tx_dev_lock 2024-09-04 13:23:22 +02:00
target scsi: target: Fix SELinux error when systemd-modules loads the target module 2024-05-17 11:50:54 +02:00
tc
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tee tee: optee: Fix kernel panic caused by incorrect error handling 2024-04-10 16:18:46 +02:00
thermal thermal/drivers/qcom/lmh: Check for SCM availability at probe 2024-06-16 13:39:55 +02:00
thunderbolt thunderbolt: Mark XDomain as unplugged when router is removed 2024-09-04 13:23:15 +02:00
tty serial: core: check uartclk for zero to avoid divide by zero 2024-08-19 05:45:46 +02:00
uio uio: Fix use-after-free in uio_open 2024-01-25 14:52:31 -08:00
usb usb: typec: ucsi: Fix null pointer dereference in trace 2024-09-12 11:07:41 +02:00
vdpa vduse: Temporarily fail if control queue feature requested 2024-07-05 09:14:42 +02:00
vfio vfio/fsl-mc: Block calling interrupt handler without trigger 2024-04-10 16:19:30 +02:00
vhost vhost-vdpa: switch to use vmf_insert_pfn() in the fault handler 2024-08-19 05:45:44 +02:00
video fbdev: savage: Handle err return when savagefb_check_var failed 2024-06-16 13:39:57 +02:00
virt drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() 2024-06-16 13:39:32 +02:00
virtio virtio: delete vq in vp_find_vqs_msix() when request_irq() fails 2024-06-16 13:39:47 +02:00
visorbus
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vlynq
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vme
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w1
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watchdog watchdog: rti_wdt: Set min_hw_heartbeat_ms to accommodate a safety margin 2024-06-16 13:39:59 +02:00
xen xen/events: close evtchn after mapping cleanup 2024-04-10 16:18:46 +02:00
zorro
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Kconfig
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Makefile
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