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Omar Sandoval bdac616db9 loop: fix LOOP_GET_STATUS lock imbalance 
Commit 2d1d4c1e59 made loop_get_status() drop lo_ctx_mutex before
returning, but the loop_get_status_old(), loop_get_status64(), and
loop_get_status_compat() wrappers don't call loop_get_status() if the
passed argument is NULL. The callers expect that the lock is dropped, so
make sure we drop it in that case, too.

Reported-by: syzbot+31e8daa8b3fc129e75f2@syzkaller.appspotmail.com
Fixes: 2d1d4c1e59 ("loop: don't call into filesystem while holding lo_ctl_mutex")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 		2018-04-10 08:38:46 -06:00
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accessibility
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acpi * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
amba
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android
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ata Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2018-04-03 17:42:25 -07:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
auxdisplay auxdisplay: img-ascii-lcd: Silence 2 uninitialized warnings 2018-03-13 18:16:38 +01:00
base Driver core patches for 4.17-rc1 2018-04-04 19:41:45 -07:00
bcma bcma: Prevent build of PCI host features in module 2018-03-13 18:47:47 +02:00
block loop: fix LOOP_GET_STATUS lock imbalance 2018-04-10 08:38:46 -06:00
bluetooth Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME 2018-04-01 21:43:02 +03:00
bus Staging/IIO patches for 4.17-rc1 2018-04-04 18:56:27 -07:00
cdrom cdrom: do not call check_disk_change() inside cdrom_open() 2018-03-09 08:06:35 -07:00
char kernel.h: Retain constant expression output for max()/min() 2018-04-05 14:17:16 -07:00
clk clk: bcm2835: Protect sections updating shared registers 2018-03-19 09:27:37 -07:00
clocksource arch: remove obsolete architecture ports 2018-04-02 20:20:12 -07:00
connector
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cpufreq Power management updates for 4.17-rc1 2018-04-03 10:45:39 -07:00
cpuidle cpuidle: poll_state: Avoid invoking local_clock() too often 2018-03-29 13:06:08 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-04-04 17:11:08 -07:00
dax
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dca
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devfreq
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dio
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dma dmaengine: stm32-dmamux: fix a potential buffer overflow 2018-03-22 10:51:35 +05:30
dma-buf
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edac * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
eisa
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extcon Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
firewire
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firmware * Add NVDIMM support to EDAC (Tony Luck) 2018-04-05 14:21:13 -07:00
fmc treewide: Fix typos in printk 2018-03-27 09:51:22 +02:00
fpga PCI: Add Altera vendor ID 2018-03-14 19:13:47 +01:00
fsi fsi: core: Add check for master property no-scan-on-init 2018-03-14 19:11:01 +01:00
gpio This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
gpu kernel.h: Retain constant expression output for max()/min() 2018-04-05 14:17:16 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-04-05 11:53:34 -07:00
hsi HSI: hsi_char: Delete an error message for a failed memory allocation in hsc_probe() 2018-03-19 16:31:07 +01:00
hv hv: add SPDX license id to Kconfig 2018-03-28 13:24:56 +02:00
hwmon
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hwspinlock
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hwtracing Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
i2c arch: remove obsolete architecture ports 2018-04-02 20:20:12 -07:00
ide for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
idle
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iio This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-04-05 13:21:57 -07:00
iommu Merge branch 'x86-dma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 17:18:45 -07:00
ipack
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irqchip Staging/IIO patches for 4.17-rc1 2018-04-04 18:56:27 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
leds leds: Fix wrong dmi_match on PC Engines APU LEDs 2018-03-20 20:28:00 +01:00
lightnvm lightnvm: pblk: remove some unnecessary NULL checks 2018-03-29 17:29:09 -06:00
macintosh macintosh/via-pmu68k: Initialize PMU driver with setup_arch and arch_initcall 2018-03-19 10:22:59 +01:00
mailbox
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mcb mcb: add Altera PCI ID to mcb-pci 2018-03-14 19:13:48 +01:00
md for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
memory
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memstick
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message treewide: Align function definition open/close braces 2018-03-26 11:13:09 +02:00
mfd
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misc for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
mmc for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
mtd for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
mux
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net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
nfc
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ntb
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nubus
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nvdimm for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
nvme for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
nvmem Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-04-03 14:04:18 -07:00
opp
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oprofile oprofilefs: don't oops on allocation failure 2018-03-29 15:07:48 -04:00
parisc parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode 2018-03-27 18:52:22 +02:00
parport Char/Misc patches for 4.17-rc1 2018-04-04 20:07:20 -07:00
pci arch: remove obsolete architecture ports 2018-04-02 20:20:12 -07:00
pcmcia Power management updates for 4.17-rc1 2018-04-03 10:45:39 -07:00
perf arm64 updates for 4.17 2018-04-04 16:01:43 -07:00
phy phy: for 4.17 2018-03-20 10:10:46 +01:00
pinctrl This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
platform Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
pnp
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power power supply and reset changes for the v4.17 series 2018-04-03 12:10:01 -07:00
powercap powercap: RAPL: Add support for Cannon Lake 2018-03-19 00:02:24 +01:00
pps pps: generator: use new parport device model 2018-03-14 17:53:06 +01:00
ps3
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ptp
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pwm pwm: remove pwm-bfin driver 2018-03-26 15:57:08 +02:00
rapidio
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ras
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regulator Merge remote-tracking branches 'regulator/topic/88pg86x', 'regulator/topic/dt', 'regulator/topic/formatting' and 'regulator/topic/gpio' into regulator-next 2018-03-28 10:33:53 +08:00
remoteproc
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reset
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rpmsg
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rtc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
s390 for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
sbus sparc64: Properly range check DAX completion index 2018-04-01 20:07:00 -04:00
scsi SCSI for-linus on 20180404 2018-04-05 15:05:53 -07:00
sfi
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sh
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siox siox: fix possible buffer overflow in device_add_store 2018-03-15 18:07:46 +01:00
slimbus slimbus: core: use put_device() instead of kfree() 2018-03-15 17:55:52 +01:00
sn
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soc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
soundwire
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spi spi: SPI updates for v4.17 2018-04-03 12:06:21 -07:00
spmi
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ssb ssb: use put_device() if device_register fail 2018-03-13 18:48:29 +02:00
staging for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
target for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
tc
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tee
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thermal
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thunderbolt thunderbolt: Prevent crash when ICM firmware is not running 2018-03-14 14:26:38 +03:00
tty TTY/Serial driver patches for 4.17-rc1 2018-04-04 18:43:49 -07:00
uio uio_hv_generic: support sub-channels 2018-03-06 09:57:17 -08:00
usb TTY/Serial driver patches for 4.17-rc1 2018-04-04 18:43:49 -07:00
uwb uwb: Re-use DEFINE_SHOW_ATTRIBUTE() macro 2018-03-09 09:31:26 -08:00
vfio Revert: "vfio-pci: Mask INTx if a device is not capabable of enabling it" 2018-03-21 22:50:19 -06:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
video TTY/Serial driver patches for 4.17-rc1 2018-04-04 18:43:49 -07:00
virt
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virtio virtio_ring: fix num_free handling in error case 2018-03-01 18:53:38 +02:00
visorbus
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vlynq
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vme
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w1 w1: use put_device() if device_register() fail 2018-03-14 14:58:50 +01:00
watchdog This is the bulk of GPIO changes for the v4.17 kernel cycle: 2018-04-05 09:51:41 -07:00
xen x86/dma: Remove dma_alloc_coherent_mask() 2018-03-20 10:01:56 +01:00
zorro zorro: Set up z->dev.dma_mask for the DMA API 2018-03-19 10:26:46 +01:00
Kconfig hwtracing: Add HW tracing support menu 2018-03-29 13:38:10 +03:00
Makefile
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