Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-13 06:32:50 +00:00
Code Issues Packages Projects Releases Wiki Activity
e6599adfad
linux/drivers
History
Hsin-Yi Wang e6599adfad media: mtk-vpu: avoid unaligned access to DTCM buffer. 
Previously, vpu->recv_buf and send_buf are forced cast from
void __iomem *tcm. vpu->recv_buf->share_buf is passed to
vpu_ipi_desc.handler(). It's not able to do unaligned access. Otherwise
kernel would crash due to unable to handle kernel paging request.

struct vpu_run {
	u32 signaled;
	char fw_ver[VPU_FW_VER_LEN];
	unsigned int	dec_capability;
	unsigned int	enc_capability;
	wait_queue_head_t wq;
};

fw_ver starts at 4 byte boundary. If system enables
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, strscpy() will do
read_word_at_a_time(), which tries to read 8-byte: *(unsigned long *)addr

vpu_init_ipi_handler() calls strscpy(), which would lead to crash.

vpu_init_ipi_handler() and several other handlers (eg.
vpu_dec_ipi_handler) only do read access to this data, so they can be
const, and we can use memcpy_fromio() to copy the buf to another non iomem
buffer then pass to handler.

Fixes: 85709cbf15 ("media: replace strncpy() by strscpy()")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-12 16:25:33 +01:00
..
accessibility
acpi Additional ACPI updates for 5.6-rc1 2020-02-07 12:51:54 -08:00
amba
android for-5.6/io_uring-vfs-2020-01-29 2020-01-29 18:53:37 -08:00
ata libata-5.6-2020-02-05 2020-02-06 06:11:50 +00:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
auxdisplay
base ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
block Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:26:41 -08:00
bluetooth Bluetooth: btrtl: Use kvmalloc for FW allocations 2020-01-24 19:57:53 +01:00
bus ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
cdrom
char treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
clk ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
clocksource ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
connector
counter
cpufreq ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
cpuidle ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-01-28 16:02:33 -08:00
dax
dca
devfreq
dio
dma ARM: Device-tree updates 2020-02-08 13:58:44 -08:00
dma-buf
edac ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
eisa
extcon
firewire
firmware ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
fpga
fsi
gnss
gpio treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
gpu Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
greybus
hid drm pull for 5.6-rc1 2020-01-30 08:04:01 -08:00
hsi
hv - Most of the commits here are work to enable host-initiated hibernation 2020-02-03 14:42:03 +00:00
hwmon ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
hwspinlock hwspinlock: sirf: Use devm_hwspin_lock_register() to register hwlock controller 2020-01-21 16:16:36 -08:00
hwtracing
i2c Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
i3c
ide proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
idle intel_idle: Introduce 'states_off' module parameter 2020-02-03 11:57:18 +01:00
iio chrome platform changes for 5.6 2020-02-04 07:17:41 +00:00
infiniband RDMA subsystem updates for 5.6 2020-01-31 14:40:36 -08:00
input Merge branch 'akpm' (patches from Andrew) 2020-02-04 07:24:48 +00:00
interconnect
iommu IOMMU Updates for Linux v5.6 2020-02-05 17:49:54 +00:00
ipack
irqchip irqchip/gic-v4.1: Avoid 64bit division for the sake of 32bit ARM 2020-02-09 15:47:37 -08:00
isdn proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
leds leds: lm3532: add pointer to documentation and fix typo 2020-01-22 21:08:24 +01:00
lightnvm
macintosh powerpc updates for 5.6 2020-02-04 13:06:46 +00:00
mailbox
mcb
md Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-02-08 13:04:49 -08:00
media media: mtk-vpu: avoid unaligned access to DTCM buffer. 2020-03-12 16:25:33 +01:00
memory
memstick
message Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
mfd chrome platform changes for 5.6 2020-02-04 07:17:41 +00:00
misc Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
mmc ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
mtd treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
mux
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-02-08 17:15:08 -08:00
nfc Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
ntb
nubus
nvdimm mm: Cleanup __put_devmap_managed_page() vs ->page_free() 2020-01-31 10:30:37 -08:00
nvme block-5.6-2020-02-05 2020-02-06 06:15:23 +00:00
nvmem Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-02-07 12:54:13 -08:00
of ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
opp ioremap changes for 5.6 2020-01-27 13:03:00 -08:00
oprofile
parisc proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
parport
pci pci-v5.6-fixes-1 2020-02-06 14:17:38 +00:00
pcmcia
perf
phy treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
pinctrl pinctrl: fix pxa2xx.c build warnings 2020-02-04 03:05:24 +00:00
platform Merge branch 'akpm' (patches from Andrew) 2020-02-04 07:24:48 +00:00
pnp proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
power ARM: SoC platform updates 2020-02-08 13:55:25 -08:00
powercap
pps
ps3
ptp Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2020-01-19 22:10:04 +01:00
pwm pwm: Remove set but not set variable 'pwm' 2020-01-20 15:40:49 +01:00
rapidio
ras
regulator - New Drivers 2020-02-03 14:51:57 +00:00
remoteproc remoteproc: qcom: q6v5-mss: Improve readability of reset_assert 2020-01-24 09:34:07 -08:00
reset
rpmsg rpmsg: add rpmsg support for mt8183 SCP. 2020-01-20 10:29:56 -08:00
rtc chrome platform changes for 5.6 2020-02-04 07:17:41 +00:00
s390 s390 updates for the 5.6 merge window #2 2020-02-05 17:33:35 +00:00
sbus
scsi SCSI misc on 20200208 2020-02-08 17:24:41 -08:00
sfi
sh
siox
slimbus
soc ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
soundwire
spi treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
spmi
ssb
staging media: meson: vdec: add VP9 decoder support 2020-03-05 23:05:34 +01:00
target SCSI misc on 20200129 2020-01-29 18:16:16 -08:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
thermal - Fix a SEVERE docs build failure for cpu idle cooling device (Randy Dunlap) 2020-01-31 14:39:21 -08:00
thunderbolt
tty Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
uio
usb media: gadget: uvc: rename VFL_TYPE_GRABBER to _VIDEO 2020-02-24 16:52:45 +01:00
vfio VFIO updates for v5.6-rc1 2020-02-03 22:22:05 +00:00
vhost
video Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
virt
virtio virtio_balloon: Fix memory leaks on errors in virtballoon_probe() 2020-02-06 03:40:27 -05:00
visorbus
vlynq
vme Char/Misc driver changes for 5.6-rc1 2020-01-29 10:35:54 -08:00
w1 Char/Misc driver changes for 5.6-rc1 2020-01-29 10:35:54 -08:00
watchdog linux-watchdog 5.6-rc1 tag 2020-02-07 12:30:16 -08:00
xen xen: branch for v5.6-rc1 2020-02-05 17:44:14 +00:00
zorro Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
Kconfig
Makefile