Liam Mark 31eb79db42 staging: android: ion: Support cpu access during dma_buf_detach ... Often userspace doesn't know when the kernel will be calling dma_buf_detach on the buffer. If userpace starts its CPU access at the same time as the sg list is being freed it could end up accessing the sg list after it has been freed. Thread A Thread B - DMA_BUF_IOCTL_SYNC IOCT - ion_dma_buf_begin_cpu_access - list_for_each_entry - ion_dma_buf_detatch - free_duped_table - dma_sync_sg_for_cpu Fix this by getting the ion_buffer lock before freeing the sg table memory. Fixes: 2a55e7b5e5 ("staging: android: ion: Call dma_map_sg for syncing and mapping") Signed-off-by: Liam Mark <lmark@codeaurora.org> Acked-by: Laura Abbott <labbott@redhat.com> Acked-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-01-22 11:38:09 +01:00
..
android	staging: android: ion: Support cpu access during dma_buf_detach	2019-01-22 11:38:09 +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
comedi	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
emxx_udc	staging: emxx_udc: Remove cast and move all in one line.	2018-12-05 09:44:10 +01:00
erofs	staging: erofs: Fix spelling issue	2018-12-12 11:30:05 +01:00
fbtft	staging: fbtft: fix strncmp() size warning	2018-12-19 08:29:28 +01:00
fsl-dpaa2	net: core: dev: Add extack argument to dev_open()	2018-12-06 13:26:06 -08:00
fwserial	staging: fwserial: convert to DEFINE_SHOW_ATTRIBUTE	2018-12-17 14:24:07 +01:00
gasket	staging: gasket: formatting fixes	2018-11-12 14:43:15 -08:00
gdm724x
goldfish	staging: goldfish: Add SPDX license identifier.	2018-11-07 12:27:33 +01:00
greybus	staging: greybus: convert to DEFINE_SHOW_ATTRIBUTE	2018-12-17 14:24:42 +01:00
gs_fpgaboot
iio	Revert "Staging: iio: adt7316: Add an extra check for 'ret' equals to 0"	2018-12-08 11:15:54 +00:00
ks7010	staging: ks7010: remove unnecessary blank line	2018-11-07 12:35:10 +01:00
media	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
most	staging: most: sound: replace snprintf with strscpy	2018-12-19 08:28:22 +01:00
mt7621-dma	staging: mt7621-dma: fix unbalanced braces	2018-12-17 14:17:28 +01:00
mt7621-dts	staging: mt7621-dts: avoid warnings in pinctrl definitions	2018-12-12 11:55:39 +01:00
mt7621-eth	cross-tree: phase out dma_zalloc_coherent()	2019-01-08 07:58:37 -05:00
mt7621-mmc	staging: mt7621-mmc: Correct spelling mistakes in comments	2018-12-20 18:11:58 +01:00
mt7621-pci	staging: mt7621-pci: add comment clarifying inverted reset lines	2018-12-05 09:39:45 +01:00
mt7621-pinctrl	staging: mt7621-pinctrl: fix uninitialized variable ngroups	2018-11-11 11:47:38 -08:00
mt7621-spi	staging: mt7621-spi: drop support for SPI mode 1/2/3	2018-12-12 11:34:53 +01:00
netlogic
nvec
octeon	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
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
rtl8188eu	staging: rtl8188eu: Add device code for D-Link DWA-121 rev B1	2019-01-15 16:31:09 +01:00
rtl8192e	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
rtl8192u	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
rtl8712	Merge 4.20-rc6 into staging-next	2018-12-10 09:23:50 +01:00
rtl8723bs	staging: rtl8723bs: Fix build error with Clang when inlining is disabled	2019-01-18 10:28:44 +01:00
rtlwifi	staging: rtlwifi: fix spelling mistake "disnabled" -> "disabled"	2018-12-05 09:39:45 +01:00
rts5208	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
sm750fb	staging: sm750fb: Add spaces around '+'	2018-11-07 12:35:10 +01:00
speakup	staging: speakup: change semaphore to completion	2018-12-12 11:31:14 +01:00
unisys	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
vboxvideo	Staging/IIO driver patches for 4.21-rc1	2018-12-28 20:39:58 -08:00
vc04_services	staging: vchiq: Fix local event signalling	2019-01-15 16:31:09 +01:00
vme
vt6655	cross-tree: phase out dma_zalloc_coherent()	2019-01-08 07:58:37 -05:00
vt6656
wilc1000	Staging: wilc1000: unlock on error in init_chip()	2019-01-15 16:31:09 +01:00
wlan-ng	staging: wlan-ng: remove unused variable in prism2fw.c	2018-11-20 10:59:30 +01:00
xgifb	staging: xgifb: clean an indentation issue	2018-11-07 12:35:10 +01:00
Kconfig	staging: Remove the mt29f_spinand driver	2018-11-06 10:18:48 +01:00
Makefile	staging: Remove the mt29f_spinand driver	2018-11-06 10:18:48 +01:00