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Adam Wallis 52425e0428 dmaengine: dmatest: move callback wait queue to thread context 
commit 6f6a23a213 upstream.

Commit adfa543e73 ("dmatest: don't use set_freezable_with_signal()")
introduced a bug (that is in fact documented by the patch commit text)
that leaves behind a dangling pointer. Since the done_wait structure is
allocated on the stack, future invocations to the DMATEST can produce
undesirable results (e.g., corrupted spinlocks).

Commit a9df21e34b ("dmaengine: dmatest: warn user when dma test times
out") attempted to WARN the user that the stack was likely corrupted but
did not fix the actual issue.

This patch fixes the issue by pushing the wait queue and callback
structs into the the thread structure. If a failure occurs due to time,
dmaengine_terminate_all will force the callback to safely call
wake_up_all() without possibility of using a freed pointer.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=197605
Fixes: adfa543e73 ("dmatest: don't use set_freezable_with_signal()")
Reviewed-by: Sinan Kaya <okaya@codeaurora.org>
Suggested-by: Shunyong Yang <shunyong.yang@hxt-semitech.com>
Signed-off-by: Adam Wallis <awallis@codeaurora.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-20 10:04:52 +01:00
..
accessibility
acpi ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal 2017-08-30 10:19:29 +02:00
amba
android ANDROID: binder: fix proc->tsk check. 2017-08-30 10:19:26 +02:00
ata libata: drop WARN from protocol error in ata_sff_qc_issue() 2017-12-16 10:33:52 +01:00
atm atm: horizon: Fix irq release error 2017-12-16 10:33:55 +01:00
auxdisplay
base isa: Prevent NULL dereference in isa_bus driver callbacks 2017-12-16 10:33:48 +01:00
bcma bcma: use (get|put)_device when probing/removing device driver 2017-03-12 06:37:30 +01:00
block zram: set physical queue limits to avoid array out of bounds accesses 2017-12-16 10:33:53 +01:00
bluetooth Bluetooth: btusb: driver to enable the usb-wakeup feature 2017-12-20 10:04:52 +01:00
bus bus: mbus: fix window size calculation for 4GB windows 2017-10-27 10:23:17 +02:00
cdrom
char ipmi: Stop timers before cleaning up the module 2017-12-16 10:33:56 +01:00
clk clk: ti: dra7-atl-clock: fix child-node lookups 2017-11-30 08:37:23 +00:00
clocksource clockevents/drivers/cs5535: Improve resilience to spurious interrupts 2017-10-27 10:23:17 +02:00
connector
cpufreq cpufreq: CPPC: add ACPI_PROCESSOR dependency 2017-10-21 17:09:06 +02:00
cpuidle ARM: cpuidle: Fix error return code 2016-10-16 17:36:15 +02:00
crypto crypto: s5p-sss - Fix completing crypto request in IRQ handler 2017-12-16 10:33:53 +01:00
dca
devfreq
dio
dma dmaengine: dmatest: move callback wait queue to thread context 2017-12-20 10:04:52 +01:00
dma-buf
edac EDAC, i5000, i5400: Fix definition of NRECMEMB register 2017-12-16 10:33:54 +01:00
eisa
extcon extcon: palmas: Check the parent instance to prevent the NULL 2017-11-21 09:21:18 +01:00
firewire firewire: net: fix fragmented datagram_size off-by-one 2016-11-10 16:36:35 +01:00
firmware efi: Move some sysfs files to be read-only by root 2017-12-16 10:33:48 +01:00
fmc
fpga
gpio gpio: altera: Use handle_level_irq when configured as a level_high 2017-12-16 10:33:51 +01:00
gpu drm/amd/amdgpu: fix console deadlock if late init failed 2017-12-16 10:33:54 +01:00
hid HID: chicony: Add support for another ASUS Zen AiO keyboard 2017-12-16 10:33:52 +01:00
hsi
hv Drivers: hv: fcopy: restore correct transfer length 2017-10-12 11:27:33 +02:00
hwmon hwmon: (gl520sm) Fix overflows and crash seen when writing into limit attributes 2017-10-08 10:14:17 +02:00
hwspinlock
hwtracing stm class: Fix a use-after-free 2017-10-12 11:27:33 +02:00
i2c i2c: riic: fix restart condition 2017-12-16 10:33:53 +01:00
ide
idle intel_idle: Support for Intel Xeon Phi Processor x200 Product Family 2016-09-15 08:27:46 +02:00
iio iio: light: fix improper return value 2017-11-30 08:37:27 +00:00
infiniband IB/mlx5: Assign send CQ and recv CQ of UMR QP 2017-12-16 10:33:55 +01:00
input Input: ims-psu - check if CDC union descriptor is sane 2017-11-18 11:11:05 +01:00
iommu iommu/vt-d: Fix scatterlist offset handling 2017-12-16 10:33:49 +01:00
ipack
irqchip irqchip/crossbar: Fix incorrect type of register size 2017-12-16 10:33:52 +01:00
isdn isdn/i4l: fetch the ppp_write buffer in one shot 2017-10-21 17:09:02 +02:00
leds leds: ktd2692: avoid harmless maybe-uninitialized warning 2017-05-14 13:32:55 +02:00
lguest
lightnvm lightnvm: put bio before return 2016-09-24 10:07:35 +02:00
macintosh
mailbox mailbox: handle empty message in tx_tick 2017-08-06 19:19:41 -07:00
mcb
md bcache: recover data from backing when data is clean 2017-12-09 18:42:37 +01:00
media media: dvb: i2c transfers over usb cannot be done from stack 2017-12-16 10:33:49 +01:00
memory ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure 2017-12-16 10:33:51 +01:00
memstick memstick: rtsx_usb_ms: Manage runtime PM when accessing the device 2016-10-28 03:01:35 -04:00
message
mfd mfd: axp20x: Fix axp288 PEK_DBR and PEK_DBF irqs being swapped 2017-11-08 10:06:29 +01:00
misc eeprom: at24: check at24_read/write arguments 2017-12-05 11:22:51 +01:00
mmc mmc: core: Do not leave the block driver in a suspended state 2017-12-05 11:22:51 +01:00
mtd mtd: nand: Fix writing mtdoops to nand flash. 2017-12-05 11:22:51 +01:00
net ipvlan: fix ipv6 outbound device 2017-12-16 10:33:56 +01:00
nfc nfc: fdp: fix NULL pointer dereference 2017-08-06 19:19:40 -07:00
ntb ntb_transport: fix bug calculating num_qps_mw 2017-08-30 10:19:29 +02:00
nubus
nvdimm libnvdimm, namespace: make 'resource' attribute only readable by root 2017-11-30 08:37:23 +00:00
nvme nvme: Fix memory order on async queue deletion 2017-11-24 08:32:25 +01:00
nvmem nvmem: imx-ocotp: Fix wrong register size 2017-08-06 19:19:46 -07:00
of of: device: Export of_device_{get_modalias, uvent_modalias} to modules 2017-07-27 15:06:09 -07:00
oprofile
parisc parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo 2017-08-24 17:02:35 -07:00
parport parisc, parport_gsc: Fixes for printk continuation lines 2017-06-17 06:39:37 +02:00
pci PCI: Apply _HPX settings only to relevant devices 2017-11-30 08:37:26 +00:00
pcmcia
perf drivers/perf: arm_pmu: Fix leak in error path 2016-10-07 15:23:41 +02:00
phy phy: qcom-usb-hs: Add depends on EXTCON 2017-05-14 13:32:57 +02:00
pinctrl pinctrl: samsung: Remove bogus irq_[un]mask from resource management 2017-08-16 13:40:30 -07:00
platform platform/x86: hp-wmi: Do not shadow error values 2017-11-15 17:13:11 +01:00
pnp PNP: Add Broadwell to Intel MCH size workaround 2016-08-16 09:30:48 +02:00
power power: supply: bq24190_charger: Handle fault before status on interrupt 2017-05-14 13:32:54 +02:00
powercap
pps pps: do not crash when failed to register 2016-08-10 11:49:25 +02:00
ps3
ptp
pwm pwm: pca9685: Fix period change with same duty cycle 2017-03-15 09:57:14 +08:00
rapidio
ras
regulator regulator: fan53555: fix I2C device ids 2017-11-02 09:40:50 +01:00
remoteproc remoteproc: Fix potential race condition in rproc_add 2016-08-20 18:09:20 +02:00
reset
rpmsg
rtc rtc: tegra: Implement clock handling 2017-04-21 09:30:07 +02:00
s390 s390/qeth: issue STARTLAN as first IPA command 2017-11-15 17:13:11 +01:00
sbus
scsi scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters 2017-12-16 10:33:52 +01:00
sfi
sh
sn
soc soc: qcom/spm: shut up uninitialized variable warning 2016-09-24 10:07:42 +02:00
spi Revert "spi: SPI_FSL_DSPI should depend on HAS_DMA" 2017-12-16 10:33:50 +01:00
spmi spmi: Include OF based modalias in device uevent 2017-07-27 15:06:10 -07:00
ssb ssb: Fix error routine when fallback SPROM fails 2017-01-09 08:07:42 +01:00
staging mm: avoid returning VM_FAULT_RETRY from ->page_mkwrite handlers 2017-12-09 18:42:43 +01:00
target target: Fix QUEUE_FULL + SCSI task attribute handling 2017-11-30 08:37:22 +00:00
tc
thermal thermal: cpu_cooling: Avoid accessing potentially freed structures 2017-07-27 15:06:02 -07:00
thunderbolt
tty sysrq : fix Show Regs call trace on ARM 2017-12-09 18:42:40 +01:00
uio uio: fix dmem_region_start computation 2016-10-31 04:13:59 -06:00
usb xhci: Don't add a virt_dev to the devs array before it's fully allocated 2017-12-20 10:04:52 +01:00
uwb uwb: ensure that endpoint is interrupt 2017-10-12 11:27:35 +02:00
vfio vfio-pci: Handle error from pci_iomap 2017-08-06 19:19:46 -07:00
vhost fix a page leak in vhost_scsi_iov_to_sgl() error recovery 2017-11-30 08:37:22 +00:00
video backlight: adp5520: Fix error handling in adp5520_bl_probe() 2017-11-21 09:21:21 +01:00
virt
virtio virtio: release virtio index when fail to device_register 2017-12-16 10:33:48 +01:00
vlynq
vme vme: Fix wrong pointer utilization in ca91cx42_slave_get 2017-01-19 20:17:21 +01:00
w1 w1: ds2490: USB transfer buffers need to be DMAable 2017-03-12 06:37:29 +01:00
watchdog watchdog: kempld: fix gcc-4.3 build 2017-10-21 17:09:04 +02:00
xen xen: xenbus driver must not accept invalid transaction ids 2017-11-30 08:37:28 +00:00
zorro
Kconfig
Makefile usb: Make sure usb/phy/of gets built-in 2017-05-20 14:26:59 +02:00