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472d26df5e
linux/drivers
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Xiaotao Yin 472d26df5e iommu/iova: Init the struct iova to fix the possible memleak 
During ethernet(Marvell octeontx2) set ring buffer test:
ethtool -G eth1 rx <rx ring size> tx <tx ring size>
following kmemleak will happen sometimes:

unreferenced object 0xffff000b85421340 (size 64):
  comm "ethtool", pid 867, jiffies 4295323539 (age 550.500s)
  hex dump (first 64 bytes):
    80 13 42 85 0b 00 ff ff ff ff ff ff ff ff ff ff  ..B.............
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    ff ff ff ff ff ff ff ff 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000001b204ddf>] kmem_cache_alloc+0x1b0/0x350
    [<00000000d9ef2e50>] alloc_iova+0x3c/0x168
    [<00000000ea30f99d>] alloc_iova_fast+0x7c/0x2d8
    [<00000000b8bb2f1f>] iommu_dma_alloc_iova.isra.0+0x12c/0x138
    [<000000002f1a43b5>] __iommu_dma_map+0x8c/0xf8
    [<00000000ecde7899>] iommu_dma_map_page+0x98/0xf8
    [<0000000082004e59>] otx2_alloc_rbuf+0xf4/0x158
    [<000000002b107f6b>] otx2_rq_aura_pool_init+0x110/0x270
    [<00000000c3d563c7>] otx2_open+0x15c/0x734
    [<00000000a2f5f3a8>] otx2_dev_open+0x3c/0x68
    [<00000000456a98b5>] otx2_set_ringparam+0x1ac/0x1d4
    [<00000000f2fbb819>] dev_ethtool+0xb84/0x2028
    [<0000000069b67c5a>] dev_ioctl+0x248/0x3a0
    [<00000000af38663a>] sock_ioctl+0x280/0x638
    [<000000002582384c>] do_vfs_ioctl+0x8b0/0xa80
    [<000000004e1a2c02>] ksys_ioctl+0x84/0xb8

The reason:
When alloc_iova_mem() without initial with Zero, sometimes fpn_lo will
equal to IOVA_ANCHOR by chance, so when return with -ENOMEM(iova32_full)
from __alloc_and_insert_iova_range(), the new_iova will not be freed in
free_iova_mem().

Fixes: bb68b2fbfb ("iommu/iova: Add rbtree anchor node")
Signed-off-by: Xiaotao Yin <xiaotao.yin@windriver.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-12-17 11:13:20 +01:00
..
accessibility
acpi ACPI: PM: Avoid attaching ACPI PM domain to certain devices 2019-12-10 00:22:18 +01:00
amba
android binder: fix incorrect calculation for num_valid 2019-12-14 09:10:47 +01:00
ata pci-v5.5-changes 2019-12-03 13:58:22 -08:00
atm
auxdisplay auxdisplay: charlcd: deduplicate simple_strtoul() 2019-12-04 19:44:12 -08:00
base Merge branch 'remove-ksys-mount-dup' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2019-12-15 11:36:12 -08:00
bcma
block xen: branch for v5.5-rc2 2019-12-15 12:24:44 -08:00
bluetooth Bluetooth: btbcm: Use the BDADDR_PROPERTY quirk 2019-11-22 13:35:20 +01:00
bus Few ti-sysc related fixes for v5.5 merge window 2019-12-06 08:26:50 -08:00
cdrom cdrom: respect device capabilities during opening action 2019-11-26 13:02:24 -07:00
char drm msm + fixes for 5.5-rc1 2019-12-06 10:28:09 -08:00
clk ARM: SoC platform updates 2019-12-05 11:38:40 -08:00
clocksource Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 12:20:25 -08:00
connector
counter
cpufreq cpufreq: tegra: Changes for v5.5-rc1 2019-12-06 08:28:13 -08:00
cpuidle cpuidle: Drop unnecessary type cast in cpuidle_poll_time() 2019-12-12 17:56:08 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-12-02 17:23:21 -08:00
dax libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
dca
devfreq PM / devfreq: Use PM QoS for sysfs min/max_freq 2019-12-09 12:19:16 +09:00
dio
dma dmaengine: Fix Kconfig indentation 2019-11-22 11:16:26 +05:30
dma-buf - A fix for a memory leak in the dma-buf support 2019-12-09 17:13:19 +10:00
edac EDAC/altera: Use the Altera System Manager driver 2019-11-22 10:18:29 +01:00
eisa
extcon Char/Misc driver patches for 5.5-rc1 2019-11-27 10:53:50 -08:00
firewire FireWire (IEEE 1394) subsystem updates: 2019-12-02 14:13:00 -08:00
firmware treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
fpga
fsi
gnss
gpio gpio: pca953x: tighten up indentation 2019-12-04 19:44:14 -08:00
gpu Merge tag 'drm-fixes-5.5-2019-12-12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2019-12-13 14:50:01 +10:00
greybus
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2019-12-01 18:20:54 -08:00
hsi
hv Merge branch 'akpm' (patches from Andrew) 2019-12-01 20:36:41 -08:00
hwmon compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
hwspinlock
hwtracing compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
i2c i2c: remove i2c_new_dummy() API 2019-12-10 23:15:09 +01:00
i3c
ide compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
idle cpuidle: Drop disabled field from struct cpuidle_state 2019-11-29 11:48:39 +01:00
iio First set of fixes for IIO in the 5.5 cycle. 2019-12-09 09:27:52 +01:00
infiniband Pull request for 5.5-rc2 2019-12-15 14:58:13 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-12-07 18:33:01 -08:00
interconnect interconnect: qcom: msm8974: Walk the list safely on node removal 2019-12-12 10:28:54 +01:00
iommu iommu/iova: Init the struct iova to fix the possible memleak 2019-12-17 11:13:20 +01:00
ipack
irqchip pci-v5.5-changes 2019-12-03 13:58:22 -08:00
isdn compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
leds Merge tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds 2019-12-01 16:09:28 -08:00
lightnvm
macintosh powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
mailbox mailbox changes for v5.5 2019-12-01 18:42:02 -08:00
mcb
md for-linus-20191212 2019-12-13 14:27:19 -08:00
media treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
memory memory: tegra: Fixes for v5.5-rc1 2019-12-06 08:28:51 -08:00
memstick pci-v5.5-changes 2019-12-03 13:58:22 -08:00
message
mfd chrome platform changes for v5.5 2019-12-03 14:37:12 -08:00
misc lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr 2019-12-04 19:44:13 -08:00
mmc Driver core patches for 5.5-rc1 2019-11-27 11:06:20 -08:00
mtd TTY/Serial patches for 5.5-rc1 2019-12-03 14:09:14 -08:00
mux
net treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-22 16:27:24 -08:00
ntb Add Hygon Device ID to the AMD NTB device driver 2019-12-07 18:38:17 -08:00
nubus
nvdimm libnvdimm for 5.5 2019-12-01 18:43:25 -08:00
nvme for-linus-20191212 2019-12-13 14:27:19 -08:00
nvmem ARM: SoC-related driver updates 2019-12-05 11:43:31 -08:00
of of/platform: Unconditionally pause/resume sync state during kernel init 2019-12-12 18:39:52 -06:00
opp
oprofile Printk changes for 5.5 2019-11-25 19:40:40 -08:00
parisc
parport
pci PCI: rockchip: Fix IO outbound ATU register number 2019-12-12 15:25:37 -06:00
pcmcia pcmcia: remove unused dprintk definition 2019-11-22 07:03:45 +01:00
perf
phy ARM: SoC-related driver updates 2019-12-05 11:43:31 -08:00
pinctrl Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 09:29:50 -08:00
platform chrome platform changes for v5.5 2019-12-03 14:37:12 -08:00
pnp
power Additional power management updates for 5.5-rc1 2019-12-04 10:48:09 -08:00
powercap
pps
ps3
ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-16 21:51:42 -08:00
pwm pwm: Changes for v5.5-rc1 2019-12-05 11:28:14 -08:00
rapidio drivers/rapidio/rio-access.c: fix missing include of <linux/rio_drv.h> 2019-12-04 19:44:13 -08:00
ras
regulator Merge branch 'regulator-5.5' into regulator-next 2019-11-22 19:56:20 +00:00
remoteproc remoteproc: stm32: fix probe error case 2019-11-18 20:35:16 -08:00
reset ARM: SoC-related driver updates 2019-12-05 11:43:31 -08:00
rpmsg rpmsg updates for v5.5 2019-12-01 18:39:24 -08:00
rtc RTC for 5.5 2019-12-03 13:31:08 -08:00
s390 treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
sbus
scsi SCSI fixes on 20191214 2019-12-14 12:51:57 -08:00
sfi
sh
siox
slimbus
soc ARM: SoC fixes 2019-12-06 14:19:37 -08:00
soundwire
spi Merge branch 'spi-5.5' into spi-next 2019-11-22 19:56:35 +00:00
spmi
ssb
staging Staging/IIO fixes for 5.5-rc2 2019-12-14 12:43:57 -08:00
target treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
tc
tee Merge mainline/master into arm/fixes 2019-12-05 13:18:54 -08:00
thermal thermal: power_allocator: Fix Kconfig warning 2019-12-07 21:49:06 +08:00
thunderbolt thunderbolt: Power cycle the router if NVM authentication fails 2019-11-19 17:35:57 +01:00
tty TTY/Serial patches for 5.5-rc1 2019-12-03 14:09:14 -08:00
uio
usb USB driver fixes for 5.5-rc2 2019-12-14 12:40:39 -08:00
vfio VFIO updates for v5.5-rc1 2019-12-07 14:51:04 -08:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-12-08 13:28:11 -08:00
video pci-v5.5-changes 2019-12-03 13:58:22 -08:00
virt compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
virtio virtio_balloon: divide/multiply instead of shifts 2019-12-11 08:14:07 -05:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.5-rc1 tag 2019-12-01 18:01:03 -08:00
xen xen: branch for v5.5-rc2 2019-12-15 12:24:44 -08:00
zorro
Kconfig
Makefile