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linux/drivers
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Tetsuo Handa ad30f0539a tty: Use __GFP_NOFAIL for tty_ldisc_get() 
commit bcdd0ca8cb upstream.

syzbot is reporting crashes triggered by memory allocation fault injection
at tty_ldisc_get() [1]. As an attempt to handle OOM in a graceful way, we
have tried commit 5362544beb ("tty: don't panic on OOM in
tty_set_ldisc()"). But we reverted that attempt by commit a8983d01f9
("Revert "tty: don't panic on OOM in tty_set_ldisc()"") due to reproducible
crash. We should spend resource for finding and fixing race condition bugs
rather than complicate error paths for 2 * sizeof(void *) bytes allocation
failure.

[1] https://syzkaller.appspot.com/bug?id=489d33fa386453859ead58ff5171d43772b13aa3

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzbot+40b7287c2dc987c48c81@syzkaller.appspotmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-01 15:13:06 -07:00
..
accessibility
…
acpi
ACPI / video: Only default only_lcd to true on Win8-ready _desktops_
2018-04-29 11:32:03 +02:00
amba
…
android
binder: add missing binder_unlock()
2018-02-28 10:18:33 +01:00
ata
ata: libahci: properly propagate return value of platform_get_irq()
2018-04-13 19:47:58 +02:00
atm
atm: horizon: Fix irq release error
2017-12-14 09:28:24 +01:00
auxdisplay
auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
2018-02-13 12:35:55 +01:00
base
regmap: Fix reversed bounds check in regmap_raw_write()
2018-04-24 09:34:10 +02:00
bcma
bcma: use (get|put)_device when probing/removing device driver
2017-03-12 06:41:52 +01:00
block
block/loop: fix deadlock after loop_set_status
2018-04-20 08:21:06 +02:00
bluetooth
Bluetooth: btusb: Fix quirk for Atheros 1525/QCA6174
2018-03-28 18:39:20 +02:00
bus
bus: brcmstb_gisb: correct support for 64-bit address output
2018-04-13 19:47:56 +02:00
cdrom
cdrom: information leak in cdrom_ioctl_media_changed()
2018-04-29 11:32:02 +02:00
char
virtio_console: free buffers after reset
2018-05-01 15:13:05 -07:00
clk
clk: bcm2835: De-assert/assert PLL reset signal when appropriate
2018-04-24 09:34:14 +02:00
clocksource
clocksource/drivers/stm32: Fix kernel panic with multiple timers
2018-02-17 13:21:20 +01:00
connector
…
cpufreq
cpufreq/sh: Replace racy task affinity logic
2018-03-24 11:00:10 +01:00
cpuidle
cpuidle: dt: Add missing 'of_node_put()'
2018-04-13 19:48:28 +02:00
crypto
crypto: omap-sham - fix closing of hash with separate finalize call
2018-04-13 19:48:26 +02:00
dax
device-dax: implement ->split() to catch invalid munmap attempts
2018-02-28 10:18:33 +01:00
dca
…
devfreq
PM / devfreq: Fix potential NULL pointer dereference in governor_store
2018-04-13 19:48:09 +02:00
dio
…
dma
dmaengine: at_xdmac: fix rare residue corruption
2018-04-24 09:34:13 +02:00
dma-buf
dma-buf: Update kerneldoc for sync_file_create
2017-12-09 22:01:56 +01:00
edac
EDAC, mv64x60: Fix an error handling path
2018-04-13 19:48:30 +02:00
eisa
…
extcon
extcon: palmas: Check the parent instance to prevent the NULL
2017-11-21 09:23:21 +01:00
firewire
firewire: net: fix fragmented datagram_size off-by-one
2016-11-03 14:46:39 +01:00
firmware
firmware/psci: Expose SMCCC version through psci_ops
2018-04-20 08:21:05 +02:00
fmc
…
fpga
…
gpio
gpio: label descriptors using the device name
2018-04-13 19:48:11 +02:00
gpu
drm/virtio: fix vq wait_event condition
2018-05-01 15:13:05 -07:00
hid
HID: hidraw: Fix crash on HIDIOCGFEATURE with a destroyed device
2018-04-24 09:34:16 +02:00
hsi
HSI: ssi_protocol: double free in ssip_pn_xmit()
2018-03-24 11:00:12 +01:00
hv
Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
2018-04-20 08:20:41 +02:00
hwmon
hwmon: (ina2xx) Fix access to uninitialized mutex
2018-04-20 08:21:07 +02:00
hwspinlock
…
hwtracing
coresight: tmc: Configure DMA mask appropriately
2018-04-13 19:48:26 +02:00
i2c
i2c: i801: Restore configuration at shutdown
2018-04-29 11:31:56 +02:00
ide
…
idle
idle: i7300: add PCI dependency
2018-02-25 11:05:55 +01:00
iio
iio: magnetometer: st_magn_spi: fix spi_device_id table
2018-04-13 19:48:27 +02:00
infiniband
RDMA/mlx5: Fix NULL dereference while accessing XRC_TGT QPs
2018-04-29 11:31:57 +02:00
input
Input: drv260x - fix initializing overdrive voltage
2018-04-29 11:31:56 +02:00
iommu
iommu/vt-d: Fix a potential memory leak
2018-04-24 09:34:14 +02:00
ipack
ipack: print a hex number after a 0x prefix
2016-10-27 18:43:43 -07:00
irqchip
irqchip/gic: Take lock when updating irq type
2018-04-24 09:34:12 +02:00
isdn
mISDN: Fix a sleep-in-atomic bug
2018-04-13 19:48:17 +02:00
leds
leds: pca955x: Correct I2C Functionality
2018-04-13 19:48:03 +02:00
lguest
…
lightnvm
Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block
2016-10-07 14:42:05 -07:00
macintosh
…
mailbox
mailbox: handle empty message in tx_tick
2017-08-06 18:59:42 -07:00
mcb
MCB: add support for SC31 to mcb-lpc
2017-09-09 17:39:41 +02:00
md
bcache: segregate flash only volume write streams
2018-04-13 19:48:29 +02:00
media
stk-webcam: fix an endian bug in stk_camera_read_reg()
2018-04-29 11:31:57 +02:00
memory
ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure
2017-12-14 09:28:16 +01:00
memstick
memstick: rtsx_usb_ms: Manage runtime PM when accessing the device
2016-10-17 15:43:05 +02:00
message
scsi: mptsas: Disable WRITE SAME
2018-04-29 11:32:02 +02:00
mfd
mfd: palmas: Reset the POWERHOLD mux during power off
2018-03-24 11:00:16 +01:00
misc
cxl: Unlock on error in probe
2018-04-13 19:48:22 +02:00
mmc
mmc: jz4740: Fix race condition in IRQ mask update
2018-04-24 09:34:14 +02:00
mtd
ubi: Reject MLC NAND
2018-04-24 09:34:09 +02:00
net
net: ethernet: ti: cpsw: fix tx vlan priority mapping
2018-04-29 11:32:02 +02:00
nfc
NFC: pn533: change order of free_irq and dev unregistration
2018-03-22 09:17:46 +01:00
ntb
ntb: transport shouldn't disable link due to bogus values in SPADs
2017-08-30 10:21:55 +02:00
nubus
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nvdimm
libnvdimm, namespace: use a safe lookup for dimm device name
2018-04-24 09:34:13 +02:00
nvme
nvme: fix hang in remove path
2018-04-13 19:48:23 +02:00
nvmem
nvmem: imx-ocotp: Fix wrong register size
2017-08-06 18:59:48 -07:00
of
OF: Prevent unaligned access in of_alias_scan()
2018-04-29 11:31:57 +02:00
oprofile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
parisc
parisc: Hide Diva-built-in serial aux and graphics card
2017-12-29 17:42:59 +01:00
parport
parport_pc: Add support for WCH CH382L PCI-E single parallel port card.
2018-04-08 12:12:57 +02:00
pci
PCI: Wait up to 60 seconds for device to become ready after FLR
2018-04-29 11:31:58 +02:00
pcmcia
pcmcia: fix return value of soc_pcmcia_regulator_set
2016-11-11 08:45:08 -08:00
perf
drivers/perf: arm_pmu: handle no platform_device
2018-03-22 09:17:51 +01:00
phy
phy: work around 'phys' references to usb-nop-xceiv devices
2018-01-23 19:57:07 +01:00
pinctrl
Revert "pinctrl: intel: Initialize GPIO properly when used through irqchip"
2018-04-29 11:31:58 +02:00
platform
platform/chrome: Use proper protocol transfer function
2018-03-24 11:00:24 +01:00
pnp
…
power
power: supply: bq2415x: check for NULL acpi_id to avoid null pointer dereference
2018-04-29 11:31:56 +02:00
powercap
PowerCap: Fix an error code in powercap_register_zone()
2018-04-13 19:47:56 +02:00
pps
pps: kc: fix non-tickless system config dependency
2016-10-11 15:06:32 -07:00
ps3
…
ptp
time: Change posix clocks ops interfaces to use timespec64
2018-03-24 11:00:09 +01:00
pwm
pwm: rcar: Fix a condition to prevent mismatch value setting to duty
2018-04-24 09:34:14 +02:00
rapidio
drivers/rapidio/devices/rio_mport_cdev.c: fix resource leak in error handling path in 'rio_dma_transfer()'
2017-12-14 09:28:22 +01:00
ras
…
regulator
regulator: anatop: set default voltage selector for pcie
2018-03-24 11:00:09 +01:00
remoteproc
remoteproc: qcom: mdt_loader: Don't overwrite firmware object
2017-03-12 06:41:50 +01:00
reset
reset: ti_syscon: fix a ti_syscon_reset_status issue
2017-10-08 10:26:03 +02:00
rpmsg
rpmsg: virtio_rpmsg_bus: fix channel creation
2017-01-26 08:24:44 +01:00
rtc
rtc: interface: Validate alarm-time before handling rollover
2018-04-13 19:48:14 +02:00
s390
s390/dasd: fix IO error for newly defined devices
2018-04-29 11:32:02 +02:00
sbus
…
scsi
scsi: libsas: initialize sas_phy status according to response of DISCOVER
2018-04-13 19:48:30 +02:00
sfi
…
sh
…
sn
…
soc
soc/fsl/qbman: fix issue in qman_delete_cgr_safe()
2018-03-31 18:11:35 +02:00
spi
spi: Fix scatterlist elements size in spi_map_buf
2018-04-24 09:34:10 +02:00
spmi
spmi: Include OF based modalias in device uevent
2017-07-27 15:08:08 -07:00
ssb
ssb: Fix error routine when fallback SPROM fails
2017-01-09 08:32:16 +01:00
staging
staging: wlan-ng: prism2mgmt.c: fixed a double endian conversion before calling hfa384x_drvr_setconfig16, also fixes relative sparse warning
2018-04-13 19:47:56 +02:00
target
tcm_fileio: Prevent information leak for short reads
2018-03-24 11:00:20 +01:00
tc
…
thermal
thermal: imx: Fix race condition in imx_thermal_probe()
2018-04-24 09:34:14 +02:00
thunderbolt
thunderbolt: Resume control channel after hibernation image is created
2018-04-24 09:34:12 +02:00
tty
tty: Use __GFP_NOFAIL for tty_ldisc_get()
2018-05-01 15:13:06 -07:00
uio
uio: fix incorrect memory leak cleanup
2018-04-13 19:47:59 +02:00
usb
USB: Increment wakeup count on remote wakeup.
2018-05-01 15:13:05 -07:00
uwb
uwb: ensure that endpoint is interrupt
2017-10-12 11:51:19 +02:00
vfio
vfio/pci: Virtualize Maximum Read Request Size
2018-04-24 09:34:15 +02:00
vhost
vhost: fix vhost_vq_access_ok() log check
2018-04-20 08:21:07 +02:00
video
backlight: Report error on failure
2018-04-13 19:48:13 +02:00
virt
mm: replace get_user_pages() write/force parameters with gup_flags
2016-10-19 08:11:43 -07:00
virtio
virtio_ring: fix num_free handling in error case
2018-03-18 11:18:50 +01:00
vlynq
…
vme
VME: restore bus_remove function causing incomplete module unload
2017-03-12 06:41:50 +01:00
w1
w1: ds2490: USB transfer buffers need to be DMAable
2017-03-12 06:41:48 +01:00
watchdog
watchdog: f71808e_wdt: Fix WD_EN register read
2018-04-24 09:34:14 +02:00
xen
xen/gntdev: Fix partial gntdev_mmap() cleanup
2018-03-03 10:23:28 +01:00
zorro
…
Kconfig
…
Makefile
usb: build drivers/usb/common/ when USB_SUPPORT is set
2018-02-25 11:05:45 +01:00