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linux/drivers
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Yongxin Liu 4c6500b532 drm/nouveau: fix memory leak in nouveau_conn_reset() 
[ Upstream commit 09b90e2fe3 ]

In nouveau_conn_reset(), if connector->state is true,
__drm_atomic_helper_connector_destroy_state() will be called,
but the memory pointed by asyc isn't freed. Memory leak happens
in the following function __drm_atomic_helper_connector_reset(),
where newly allocated asyc->state will be assigned to connector->state.

So using nouveau_conn_atomic_destroy_state() instead of
__drm_atomic_helper_connector_destroy_state to free the "old" asyc.

Here the is the log showing memory leak.

unreferenced object 0xffff8c5480483c80 (size 192):
  comm "kworker/0:2", pid 188, jiffies 4294695279 (age 53.179s)
  hex dump (first 32 bytes):
    00 f0 ba 7b 54 8c ff ff 00 00 00 00 00 00 00 00  ...{T...........
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000005005c0d0>] kmem_cache_alloc_trace+0x195/0x2c0
    [<00000000a122baed>] nouveau_conn_reset+0x25/0xc0 [nouveau]
    [<000000004fd189a2>] nouveau_connector_create+0x3a7/0x610 [nouveau]
    [<00000000c73343a8>] nv50_display_create+0x343/0x980 [nouveau]
    [<000000002e2b03c3>] nouveau_display_create+0x51f/0x660 [nouveau]
    [<00000000c924699b>] nouveau_drm_device_init+0x182/0x7f0 [nouveau]
    [<00000000cc029436>] nouveau_drm_probe+0x20c/0x2c0 [nouveau]
    [<000000007e961c3e>] local_pci_probe+0x47/0xa0
    [<00000000da14d569>] work_for_cpu_fn+0x1a/0x30
    [<0000000028da4805>] process_one_work+0x27c/0x660
    [<000000001d415b04>] worker_thread+0x22b/0x3f0
    [<0000000003b69f1f>] kthread+0x12f/0x150
    [<00000000c94c29b7>] ret_from_fork+0x3a/0x50

Signed-off-by: Yongxin Liu <yongxin.liu@windriver.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-06 19:06:53 +02:00
..
accessibility
acpi ACPI: blacklist: fix clang warning for unused DMI table 2019-08-06 19:06:50 +02:00
amba
android binder: fix possible UAF when freeing buffer 2019-08-04 09:30:53 +02:00
ata libata: don't request sense data on !ZAC ATA devices 2019-07-26 09:14:12 +02:00
atm
auxdisplay
base regmap: fix bulk writes on paged registers 2019-07-26 09:14:06 +02:00
bcma
block floppy: fix out-of-bounds read in copy_buffer 2019-07-26 09:14:18 +02:00
bluetooth Bluetooth: hci_uart: check for missing tty operations 2019-08-04 09:30:55 +02:00
bus
cdrom
char hpet: Fix division by zero in hpet_time_div() 2019-07-31 07:27:10 +02:00
clk clk: sprd: Add check for return value of sprd_clk_regmap_init() 2019-08-06 19:06:49 +02:00
clocksource clocksource/drivers/exynos_mct: Increase priority over ARM arch timer 2019-07-26 09:14:12 +02:00
connector
cpufreq
cpuidle
crypto crypto: caam - limit output IV to CBC to work around CTR mode DMA issue 2019-07-26 09:14:29 +02:00
dax
dca
devfreq
dio
dma dmaengine: rcar-dmac: Reject zero-length slave DMA requests 2019-08-06 19:06:48 +02:00
dma-buf dma-buf: Discard old fence_excl on retrying get_fences_rcu for realloc 2019-07-28 08:29:28 +02:00
edac EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec 2019-07-26 09:14:13 +02:00
eisa
extcon
firewire
firmware firmware/psci: psci_checker: Park kthreads before stopping them 2019-08-06 19:06:48 +02:00
fmc
fpga fpga-manager: altera-ps-spi: Fix build error 2019-07-31 07:27:10 +02:00
fsi
gnss
gpio gpio: davinci: silence error prints in case of EPROBE_DEFER 2019-07-28 08:29:28 +02:00
gpu drm/nouveau: fix memory leak in nouveau_conn_reset() 2019-08-06 19:06:53 +02:00
hid HID: wacom: correct touch resolution x/y typo 2019-07-26 09:14:27 +02:00
hsi
hv
hwmon hwmon: (pmbus/core) Treat parameters as paged if on multiple pages 2019-06-25 11:35:59 +08:00
hwspinlock
hwtracing intel_th: msu: Fix single mode with disabled IOMMU 2019-07-26 09:14:30 +02:00
i2c i2c: stm32f7: fix the get_irq error cases 2019-07-31 07:27:02 +02:00
ide
idle
iio iio: adc: stm32-dfsdm: missing error case during probe 2019-07-31 07:26:56 +02:00
infiniband RDMA/rxe: Fill in wc byte_len with IB_WC_RECV_RDMA_WITH_IMM 2019-07-31 07:27:07 +02:00
input Input: alps - fix a mismatch between a condition check and its comment 2019-07-26 09:14:22 +02:00
iommu iommu/vt-d: Don't queue_iova() if there is no flush queue 2019-08-04 09:30:54 +02:00
ipack
irqchip irqchip/meson-gpio: Add support for Meson-G12A SoC 2019-07-26 09:14:06 +02:00
isdn ISDN: hfcsusb: checking idx of ep configuration 2019-08-04 09:30:53 +02:00
leds
lightnvm lightnvm: pblk: fix freeing of merged pages 2019-07-26 09:14:09 +02:00
macintosh
mailbox mailbox: handle failed named mailbox channel request 2019-07-31 07:27:07 +02:00
mcb
md dm bufio: fix deadlock with loop device 2019-07-26 09:14:31 +02:00
media media: radio-raremono: change devm_k*alloc to k*alloc 2019-08-04 09:30:54 +02:00
memory
memstick memstick: Fix error cleanup path of memstick_init 2019-07-31 07:26:59 +02:00
message
mfd mfd: hi655x-pmic: Fix missing return value check for devm_regmap_init_mmio_clk 2019-07-31 07:27:03 +02:00
misc mei: me: add mule creek canyon (EHL) device ids 2019-07-31 07:27:10 +02:00
mmc mmc: sdhci: sdhci-pci-o2micro: Check if controller supports 8-bit width 2019-07-31 07:27:01 +02:00
mtd mtd: spinand: read returns badly if the last page has bitflips 2019-07-26 09:14:30 +02:00
mux
net mlxsw: spectrum_dcb: Configure DSCP map as the last rule is removed 2019-08-06 19:06:52 +02:00
nfc
ntb
nubus
nvdimm libnvdimm/bus: Stop holding nvdimm_bus_list_mutex over __nd_ioctl() 2019-07-31 07:27:11 +02:00
nvme nvme-pci: set the errno on ctrl state change error 2019-07-26 09:14:09 +02:00
nvmem nvmem: sunxi_sid: Support SID on A83T and H5 2019-06-15 11:54:07 +02:00
of
opp
oprofile
parisc
parport parport: Fix mem leak in parport_register_dev_model 2019-06-25 11:35:55 +08:00
pci PCI: dwc: pci-dra7xx: Fix compilation when !CONFIG_GPIOLIB 2019-07-31 07:27:07 +02:00
pcmcia
perf
phy phy: renesas: rcar-gen2: Fix memory leak at error paths 2019-07-31 07:27:00 +02:00
pinctrl pinctrl: rockchip: fix leaked of_node references 2019-07-31 07:26:57 +02:00
platform platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow 2019-07-10 09:53:38 +02:00
pnp
power power: supply: max14656: fix potential use-before-alloc 2019-06-15 11:54:09 +02:00
powercap
pps drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl 2019-08-04 09:30:56 +02:00
ps3
ptp
pwm pwm: Fix deadlock warning when removing PWM device 2019-06-15 11:54:10 +02:00
rapidio drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings 2019-08-06 19:06:52 +02:00
ras RAS/CEC: Fix pfn insertion 2019-07-26 09:14:05 +02:00
regulator regulator: s2mps11: Fix buck7 and buck8 wrong voltages 2019-07-26 09:14:22 +02:00
remoteproc
reset
rpmsg
rtc rtc: pcf8523: don't return invalid date when battery is low 2019-06-19 08:18:07 +02:00
s390 scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized 2019-08-06 19:06:50 +02:00
sbus
scsi scsi: core: Avoid that a kernel warning appears during system resume 2019-08-04 09:30:57 +02:00
sfi
sh
siox
slimbus
sn
soc soc: bcm: brcmstb: biuctrl: Register writes require a barrier 2019-07-14 08:11:03 +02:00
soundwire soundwire: intel: set dai min and max channels correctly 2019-07-14 08:11:07 +02:00
spi spi: bitbang: Fix NULL pointer dereference in spi_unregister_master 2019-07-10 09:53:32 +02:00
spmi
ssb
staging staging: vt6656: use meaningful error code during buffer allocation 2019-07-31 07:26:57 +02:00
target scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported 2019-07-26 09:13:56 +02:00
tc
tee
thermal
thunderbolt
tty serial: sh-sci: Fix TX DMA buffer flushing and workqueue races 2019-07-31 07:27:04 +02:00
uio
usb usb: dwc2: Fix disable all EP's on disconnect 2019-08-04 09:30:52 +02:00
uwb
vfio vfio: Fix WARNING "do not call blocking ops when !TASK_RUNNING" 2019-06-15 11:54:07 +02:00
vhost vhost: scsi: add weight support 2019-08-04 09:30:55 +02:00
video video: imsttfb: fix potential NULL pointer dereferences 2019-06-15 11:54:10 +02:00
virt
virtio
visorbus
vlynq
vme
w1
watchdog watchdog: fix compile time error of pretimeout governors 2019-06-15 11:54:06 +02:00
xen xen/events: fix binding user event channels to cpus 2019-07-26 09:14:25 +02:00
zorro
Kconfig
Makefile