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fb4415a126
linux-next/drivers/staging
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Tetsuo Handa fb4415a126 staging: android: ashmem: Don't call fallocate() with ashmem_mutex held. 
syzbot is hitting lockdep warnings [1][2][3]. This patch tries to fix
the warning by eliminating ashmem_shrink_scan() => {shmem|vfs}_fallocate()
sequence.

[1] https://syzkaller.appspot.com/bug?id=87c399f6fa6955006080b24142e2ce7680295ad4
[2] https://syzkaller.appspot.com/bug?id=7ebea492de7521048355fc84210220e1038a7908
[3] https://syzkaller.appspot.com/bug?id=e02419c12131c24e2a957ea050c2ab6dcbbc3270

Reported-by: syzbot <syzbot+a76129f18c89f3e2ddd4@syzkaller.appspotmail.com>
Reported-by: syzbot <syzbot+148c2885d71194f18d28@syzkaller.appspotmail.com>
Reported-by: syzbot <syzbot+4b8b031b89e6b96c4b2e@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable@vger.kernel.org
Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-19 11:28:43 +01:00
..
android staging: android: ashmem: Don't call fallocate() with ashmem_mutex held. 2019-02-19 11:28:43 +01:00
axis-fifo staging: axis-fifo: Split line to stay in 80 characters. 2018-11-20 10:59:30 +01:00
board
clocking-wizard staging: clocking-wizard: match parenthesis indentation 2018-10-09 14:57:33 +02:00
comedi staging: comedi: ni_660x: fix missing break in switch statement 2019-02-13 19:43:34 +01:00
emxx_udc Staging: emxx_udc: Switch to the gpio descriptor interface 2019-01-15 16:25:58 +01:00
erofs staging: erofs: keep corrupted fs from crashing kernel in erofs_namei() 2019-02-14 10:47:21 +01:00
fbtft Staging: fbtft: Switch to the gpio descriptor interface 2019-01-18 11:01:02 +01:00
fsl-dpaa2 staging: fsl-dpaa2: fix SPDX identifiers in header files 2019-01-07 08:56:07 +01:00
fwserial staging: fwserial: convert to DEFINE_SHOW_ATTRIBUTE 2018-12-17 14:24:07 +01:00
gasket staging: gasket: interrupt: remove unused including <linux/version.h> 2019-01-22 11:32:36 +01:00
gdm724x
goldfish staging: goldfish: remove GPL boiler plate text 2019-01-15 16:08:04 +01:00
greybus staging: greybus: arche-platform: Switch to the gpio descriptor interface 2019-01-15 16:18:14 +01:00
gs_fpgaboot staging: gs_fpgaboot: cleanup alignment issue - style 2019-01-15 16:08:05 +01:00
iio staging: iio: frequency: ad9833: Load clock using clock framework 2019-02-02 17:06:49 +00:00
ks7010 staging: ks7010: remove unnecessary parentheses 2019-01-25 09:52:01 +01:00
media staging: prefix header search paths with $(srctree)/ 2019-02-04 12:30:27 +01:00
most staging: most: cdev: add missing check for cdev_add failure 2019-02-04 12:36:14 +01:00
mt7621-dma staging: Move ralink-gdma to its own directory 2019-01-15 16:28:02 +01:00
mt7621-dts staging: mt7621-dts: add general pcie reset line to pcie bindings 2019-02-19 11:13:08 +01:00
mt7621-eth staging: mt7621-eth/ethtool.c: Correction of SPDX license identifier 2019-02-04 12:34:03 +01:00
mt7621-mmc staging: mt7621-mmc: Prefer using BIT macro 2019-02-19 11:18:00 +01:00
mt7621-pci staging: mt7621-pci: reverse condition to check for enabled port 2019-02-19 11:14:14 +01:00
mt7621-pci-phy staging: mt7621-pci-phy: use 'module_init' instead of 'arch_initcall' 2019-02-19 11:12:08 +01:00
mt7621-pinctrl staging: mt7621-pinctrl: Test devm_kzalloc for failure while improving the code 2019-01-30 15:38:50 +01:00
mt7621-spi staging: mt7621-spi: Clean up comparison to NULL 2019-02-04 12:34:37 +01:00
netlogic staging: netlogic: replace ---help--- with help in Kconfig 2019-01-22 11:32:35 +01:00
nvec
octeon staging: octeon: fix broken phylib usage 2019-01-30 15:31:24 +01:00
octeon-usb staging: octeon-usb: use a helper function to set the DMA mask 2018-12-05 09:47:02 +01:00
olpc_dcon staging: olpc_dcon: olpc_dcon_xo_1.c: Switch to the gpio descriptor interface 2018-11-08 03:59:47 -08:00
pi433 staging: pi433: add missing call to cdev_del() 2018-12-05 09:39:45 +01:00
ralink-gdma staging: Move ralink-gdma to its own directory 2019-01-15 16:28:02 +01:00
rtl8188eu staging: rtl8188eu: fix bad indentation for conditional statement 2019-02-19 11:14:14 +01:00
rtl8192e staging: rtl8192e: Remove set but not used variables 'broad_addr, stype' 2019-02-19 11:14:14 +01:00
rtl8192u staging: rtl8192u: remove redundant nul check on pointer dev 2019-02-07 13:33:54 +01:00
rtl8712 staging: rtl8712: drop pointless static qualifier in r8712_efuse_pg_packet_write() 2019-01-22 11:32:36 +01:00
rtl8723bs Staging: rtl8723bs: remove some dead code 2019-02-07 13:33:54 +01:00
rtlwifi staging: rtlwifi: Remove set but not used variables 'dataempty, hoffset' 2019-02-19 11:18:00 +01:00
rts5208 Staging: rts5208: Fix error handling on rtsx_send_cmd 2019-01-07 11:28:15 +01:00
sm750fb staging: sm750fb: Rename setDisplayControl to set_display_control - style 2019-02-07 13:33:54 +01:00
speakup Merge 5.0-rc6 into staging-next 2019-02-11 09:25:01 +01:00
unisys staging: prefix header search paths with $(srctree)/ 2019-02-04 12:30:27 +01:00
vboxvideo Staging/IIO driver patches for 4.21-rc1 2018-12-28 20:39:58 -08:00
vc04_services staging: prefix header search paths with $(srctree)/ 2019-02-04 12:30:27 +01:00
vme
vt6655 cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
vt6656 staging: vt6656: key: Mark expected switch fall-throughs 2019-02-19 11:14:14 +01:00
wilc1000 staging: wilc1000: rename linux_wlan.c and linux_mon.c 2019-02-07 13:34:45 +01:00
wlan-ng staging: wlan-ng: formatting change in cfg80211.c 2019-02-08 10:31:14 +01:00
Kconfig staging: xgifb: delete the driver 2019-01-22 11:32:35 +01:00
Makefile staging: xgifb: delete the driver 2019-01-22 11:32:35 +01:00