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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
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acpi
ACPI / video: Only default only_lcd to true on Win8-ready _desktops_
2018-04-29 11:32:03 +02:00
amba
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android
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ata
ata: libahci: properly propagate return value of platform_get_irq()
2018-04-13 19:47:58 +02:00
atm
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auxdisplay
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base
regmap: Fix reversed bounds check in regmap_raw_write()
2018-04-24 09:34:10 +02:00
bcma
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block
block/loop: fix deadlock after loop_set_status
2018-04-20 08:21:06 +02:00
bluetooth
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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
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connector
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cpufreq
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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
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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
…
edac
EDAC, mv64x60: Fix an error handling path
2018-04-13 19:48:30 +02:00
eisa
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extcon
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firewire
…
firmware
firmware/psci: Expose SMCCC version through psci_ops
2018-04-20 08:21:05 +02:00
fmc
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fpga
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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
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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
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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
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idle
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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
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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
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lightnvm
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macintosh
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mailbox
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mcb
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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
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memstick
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message
scsi: mptsas: Disable WRITE SAME
2018-04-29 11:32:02 +02:00
mfd
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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
…
ntb
…
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
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of
OF: Prevent unaligned access in of_alias_scan()
2018-04-29 11:31:57 +02:00
oprofile
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parisc
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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
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perf
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phy
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pinctrl
Revert "pinctrl: intel: Initialize GPIO properly when used through irqchip"
2018-04-29 11:31:58 +02:00
platform
…
pnp
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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
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ps3
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ptp
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pwm
pwm: rcar: Fix a condition to prevent mismatch value setting to duty
2018-04-24 09:34:14 +02:00
rapidio
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ras
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regulator
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remoteproc
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reset
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rpmsg
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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
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scsi
scsi: libsas: initialize sas_phy status according to response of DISCOVER
2018-04-13 19:48:30 +02:00
sfi
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sh
…
sn
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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
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ssb
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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
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tc
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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
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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
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virtio
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vlynq
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vme
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w1
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watchdog
watchdog: f71808e_wdt: Fix WD_EN register read
2018-04-24 09:34:14 +02:00
xen
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zorro
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Kconfig
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Makefile
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