linux_dsm_epyc7002/drivers
Jiri Pirko a0c76345e3 devlink: disallow reload operation during device cleanup
There is a race between driver code that does setup/cleanup of device
and devlink reload operation that in some drivers works with the same
code. Use after free could we easily obtained by running:

while true; do
        echo 10 > /sys/bus/netdevsim/new_device
        devlink dev reload netdevsim/netdevsim10 &
        echo 10 > /sys/bus/netdevsim/del_device
done

Fix this by enabling reload only after setup of device is complete and
disabling it at the beginning of the cleanup process.

Reported-by: Ido Schimmel <idosch@mellanox.com>
Fixes: 2d8dc5bbf4 ("devlink: Add support for reload")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-08 14:11:47 -08:00
..
accessibility
acpi Power management fix for 5.4-rc6 2019-11-01 09:30:48 -07:00
amba
android
ata
atm
auxdisplay
base
bcma
block
bluetooth
bus Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
cdrom
char
clk
clocksource
connector
counter
cpufreq
cpuidle
crypto net: silence data-races on sk_backlog.tail 2019-11-06 21:35:34 -08:00
dax
dca
devfreq
dio
dma
dma-buf
edac
eisa
extcon
firewire net: add annotations on hh->hh_len lockless accesses 2019-11-07 20:07:30 -08:00
firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
fpga
fsi
gnss
gpio
gpu Merge tag 'drm-fixes-5.4-2019-10-30' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2019-11-01 11:27:39 +10:00
greybus
hid
hsi
hv
hwmon
hwspinlock
hwtracing
i2c
i3c
ide
idle
iio
infiniband
input
interconnect
iommu iommu/vt-d: Fix panic after kexec -p for kdump 2019-10-30 10:30:22 +01:00
ipack
irqchip
isdn mISDN: remove unused variable 'faxmodulation_s' 2019-11-03 19:10:30 -08:00
leds
lightnvm
macintosh
mailbox
mcb
md
media
memory
memstick
message
mfd
misc
mmc
mtd
mux
net devlink: disallow reload operation during device cleanup 2019-11-08 14:11:47 -08:00
nfc nfc: pn532_uart: Make use of pn532 autopoll 2019-10-29 21:05:26 -07:00
ntb
nubus
nvdimm
nvme Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-01 17:48:11 -07:00
nvmem
of net: of_get_phy_mode: Change API to solve int/unit warnings 2019-11-04 11:21:25 -08:00
opp
oprofile
parisc
parport
pci
pcmcia
perf
phy
pinctrl
platform
pnp
power
powercap
pps
ps3
ptp ptp: ptp_clockmatrix: Fix missing unlock on error in idtcm_probe() 2019-11-06 21:19:59 -08:00
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
sbus
scsi
sfi
sh
siox
slimbus
soc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
soundwire
spi
spmi
ssb
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-02 13:54:56 -07:00
target
tc
tee
thermal
thunderbolt
tty
uio
usb
vfio
vhost
video
virt
virtio
visorbus
vlynq
vme
w1
watchdog
xen
zorro
Kconfig
Makefile