Li Nan c2da049f41 nbd: fix null-ptr-dereference while accessing 'nbd->config' ... Memory reordering may occur in nbd_genl_connect(), causing config_refs to be set to 1 while nbd->config is still empty. Opening nbd at this time will cause null-ptr-dereference. T1 T2 nbd_open nbd_get_config_unlocked nbd_genl_connect nbd_alloc_and_init_config //memory reordered refcount_set(&nbd->config_refs, 1) // 2 nbd->config ->null point nbd->config = config // 1 Fix it by adding smp barrier to guarantee the execution sequence. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-4-linan666@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2023-11-20 10:16:44 -07:00
..
accel	Merge tag 'drm-misc-fixes-2023-11-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next	2023-11-10 16:57:49 +01:00
accessibility
acpi	RISC-V Patches for the 6.7 Merge Window, Part 1	2023-11-08 09:21:18 -08:00
amba
android	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
ata	ata: pata_gayle: Convert to platform remove callback returning void	2023-11-08 09:00:49 +09:00
atm	pci-v6.7-changes	2023-11-02 14:05:18 -10:00
auxdisplay
base	regmap: Fix for v6.7	2023-11-07 16:56:10 -08:00
bcma
block	nbd: fix null-ptr-dereference while accessing 'nbd->config'	2023-11-20 10:16:44 -07:00
bluetooth	Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend	2023-10-23 11:04:51 -07:00
bus	SoC driver updates for 6.7	2023-11-01 14:46:51 -10:00
cache	riscv: RISCV_NONSTANDARD_CACHE_OPS shouldn't depend on RISCV_DMA_NONCOHERENT	2023-10-26 09:42:37 +02:00
cdrom
cdx	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
char	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
clk	SoC driver updates for 6.7	2023-11-01 14:46:51 -10:00
clocksource	RISC-V Patches for the 6.7 Merge Window, Part 2	2023-11-10 09:23:17 -08:00
comedi
connector	Fix NULL pointer dereference in cn_filter()	2023-10-24 10:53:45 +02:00
counter
cpufreq	Merge branch 'pm-cpufreq'	2023-11-07 20:45:12 +01:00
cpuidle
crypto	crypto: talitos - stop using crypto_ahash::init	2023-10-27 18:04:29 +08:00
cxl	cxl/pci: Change CXL AER support check to use native AER	2023-11-02 14:09:01 -07:00
dax	Many singleton patches against the MM code. The patch series which are	2023-11-02 19:38:47 -10:00
dca
devfreq
dio
dma	dmaengine updates for v6.7	2023-11-03 18:56:51 -10:00
dma-buf	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
dpll
edac	hardening updates for v6.7-rc1	2023-10-30 19:09:55 -10:00
eisa
extcon
firewire	firewire: Annotate struct fw_node with __counted_by	2023-11-05 21:15:17 +09:00
firmware	RISC-V Patches for the 6.7 Merge Window, Part 2	2023-11-10 09:23:17 -08:00
fpga	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
fsi
gnss
gpio	pwm: Changes for v6.7-rc1	2023-11-09 13:47:52 -08:00
gpu	drm fixes for 6.7-rc1	2023-11-10 14:59:30 -08:00
greybus	greybus: Add BeaglePlay Linux Driver	2023-10-27 13:19:04 +02:00
hid	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
hsi
hte	hte: Changes for v6.7-rc1	2023-10-31 18:32:51 -10:00
hv	TTY/Serial changes for 6.7-rc1	2023-11-03 15:44:25 -10:00
hwmon	hwmon updates for v6.7-rc1	2023-10-31 17:44:17 -10:00
hwspinlock
hwtracing
i2c	i2c: cp2615: Fix 'assignment to __be16' warning	2023-11-08 10:27:17 +01:00
i3c	I3C for 6.7	2023-11-04 16:25:36 -10:00
idle
iio	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
infiniband	RDMA for v6.7	2023-11-02 15:20:30 -10:00
input	Input updates for 6.7 merge window:	2023-11-09 14:18:42 -08:00
interconnect
iommu	IOMMU Updates for Linux v6.7	2023-11-09 13:37:28 -08:00
ipack
irqchip	arm64 fixes:	2023-11-10 12:22:14 -08:00
isdn	hardening updates for v6.7-rc1	2023-10-30 19:09:55 -10:00
leds	pwm: Changes for v6.7-rc1	2023-11-09 13:47:52 -08:00
macintosh	powerpc updates for 6.7	2023-11-03 10:07:39 -10:00
mailbox	Moving repo	2023-11-05 18:45:32 -08:00
mcb
md	Merge tag 'md-fixes-20231120' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.7	2023-11-20 09:45:31 -07:00
media	media updates for v6.7-rc1	2023-11-06 15:06:06 -08:00
memory	IOMMU Updates for Linux v6.7	2023-11-09 13:37:28 -08:00
memstick
message	scsi: message: fusion: Initialize return value in mptfc_bus_reset()	2023-10-24 22:36:39 -04:00
mfd	- Core Frameworks	2023-11-02 14:40:51 -10:00
misc	RISC-V Patches for the 6.7 Merge Window, Part 1	2023-11-08 09:21:18 -08:00
mmc	mmc: sdhci-pci-gli: GL9750: Mask the replay timer timeout of AER	2023-11-07 13:08:12 +01:00
most
mtd	- removed AR7 platform support	2023-11-10 09:19:46 -08:00
mux
net	wifi: iwlwifi: fix system commands group ordering	2023-11-12 11:34:19 -08:00
nfc
ntb
nubus
nvdimm
nvme	nvme: keyring: fix conditional compilation	2023-11-08 08:07:08 -08:00
nvmem	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
of	RISC-V Patches for the 6.7 Merge Window, Part 2	2023-11-10 09:23:17 -08:00
opp
parisc	parisc/power: Trivial whitespace cleanups and license update	2023-10-30 14:54:40 +01:00
parport	parport: gsc: mark init function static	2023-11-10 08:41:23 +01:00
pci	cxl for v6.7	2023-11-04 16:20:36 -10:00
pcmcia	PCMCIA odd cleanups and fixes for v6.7-rc1	2023-11-07 16:40:42 -08:00
peci
perf	arm64 fixes:	2023-11-10 12:22:14 -08:00
phy	phy-for-6.6	2023-11-03 19:06:12 -10:00
pinctrl	pinctrl: nuvoton: npcm8xx: drop wrappers around pinctrl_gpio_request/free()	2023-11-04 10:23:23 +01:00
platform	Major microcode loader restructuring, cleanup and improvements by Thomas	2023-11-04 08:46:37 -10:00
pmdomain	SoC driver updates for 6.7	2023-11-01 14:46:51 -10:00
pnp
power	USB/Thunderbolt changes for 6.7-rc1	2023-11-03 16:00:42 -10:00
powercap	powercap: intel_rapl: Downgrade BIOS locked limits pr_warn() to pr_debug()	2023-10-24 22:07:07 +02:00
pps
ps3
ptp	ptp: fix corrupted list in ptp_open	2023-11-08 18:47:07 -08:00
pwm	pwm: samsung: Fix a bit test in pwm_samsung_resume()	2023-11-10 09:20:48 +01:00
rapidio
ras
regulator	regulator: Merge up pending fix	2023-10-30 13:14:27 +00:00
remoteproc
reset	reset: Annotate struct reset_control_array with __counted_by	2023-10-24 14:10:04 -07:00
rpmsg	rpmsg: virtio: Replace deprecated strncpy with strscpy/_pad	2023-10-23 13:11:07 -06:00
rtc	RTC for 6.7	2023-11-05 18:49:40 -08:00
s390	Including fixes from netfilter and bpf.	2023-11-09 17:09:35 -08:00
sbus
scsi	As usual, lots of singleton and doubleton patches all over the tree and	2023-11-02 20:53:31 -10:00
sh	sh: Remove superhyway bus support	2023-10-25 16:50:11 +02:00
siox
slimbus
soc	powerpc updates for 6.7	2023-11-03 10:07:39 -10:00
soundwire	soundwire updates for 6.7	2023-11-03 19:10:41 -10:00
spi	spi: Fixes for v6.7	2023-11-10 11:44:38 -08:00
spmi	spmi: rename spmi device lookup helper	2023-11-01 10:02:18 +00:00
ssb
staging	pwm: Changes for v6.7-rc1	2023-11-09 13:47:52 -08:00
target	SCSI misc on 20231102	2023-11-02 15:13:50 -10:00
tc
tee
thermal	Thermal control updates for 6.7-rc1	2023-10-31 15:28:37 -10:00
thunderbolt	USB/Thunderbolt changes for 6.7-rc1	2023-11-03 16:00:42 -10:00
tty	- removed AR7 platform support	2023-11-10 09:19:46 -08:00
ufs	SCSI misc on 20231102	2023-11-02 15:13:50 -10:00
uio
usb	USB/Thunderbolt changes for 6.7-rc1	2023-11-03 16:00:42 -10:00
vdpa	vdpa_sim: implement .reset_map support	2023-11-01 09:20:00 -04:00
vfio	Char/Misc and other driver changes for 6.7-rc1	2023-11-03 14:51:08 -10:00
vhost	vhost,virtio,vdpa: features, fixes, cleanups	2023-11-05 09:02:32 -10:00
video	fbdev: fsl-diu-fb: mark wr_reg_wa() static	2023-11-10 09:16:02 +01:00
virt	configfs-tsm for v6.7	2023-11-04 15:58:13 -10:00
virtio	vhost,virtio,vdpa: features, fixes, cleanups	2023-11-05 09:02:32 -10:00
w1
watchdog	- removed AR7 platform support	2023-11-10 09:19:46 -08:00
xen	Many singleton patches against the MM code. The patch series which are	2023-11-02 19:38:47 -10:00
zorro
Kconfig	- removed AR7 platform support	2023-11-10 09:19:46 -08:00
Makefile	- removed AR7 platform support	2023-11-10 09:19:46 -08:00