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Filename Latest commit message Latest commit date
Jason A. Donenfeld 74336ccb89
 UPSTREAM: wireguard: peerlookup: take lock before checking hash in replace operation 
Eric's suggested fix for the previous commit's mentioned race condition
was to simply take the table->lock in wg_index_hashtable_replace(). The
table->lock of the hash table is supposed to protect the bucket heads,
not the entires, but actually, since all the mutator functions are
already taking it, it makes sense to take it too for the test to
hlist_unhashed, as a defense in depth measure, so that it no longer
races with deletions, regardless of what other locks are protecting
individual entries. This is sensible from a performance perspective
because, as Eric pointed out, the case of being unhashed is already the
unlikely case, so this won't add common contention. And comparing
instructions, this basically doesn't make much of a difference other
than pushing and popping %r13, used by the new `bool ret`. More
generally, I like the idea of locking consistency across table mutator
functions, and this might let me rest slightly easier at night.

Suggested-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/wireguard/20200908145911.4090480-1-edumazet@google.com/
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 6147f7b1e90ff09bd52afc8b9206a7fcd133daf7)
Bug: 152722841
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1cbbeef2bbcfce20e4a0ba6f1137bbcf8c1516b6
2025-09-24 12:16:37 +02:00
..
accessibility
acpi This is the 5.4.296 stable release 2025-07-18 10:57:54 +00:00
amba
android Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
ata ata: pata_cs5536: fix build on 32-bit UML 2025-07-17 18:24:57 +02:00
atm atm: idt77252: Add missing dma_map_error() 2025-07-17 18:25:05 +02:00
auxdisplay
base Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
bcma
block Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
bluetooth Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
bus Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
cdrom
char Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
clk Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
clocksource Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
connector
counter
cpufreq Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
cpuidle Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
crypto Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
dax
dca
devfreq
dio
dma Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
dma-buf Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
edac Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
eisa
extcon
firewire
firmware Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
fpga fpga: altera-cvp: Increase credit timeout 2025-06-04 14:32:32 +02:00
fsi
gnss
gpio gpio: zynq: Fix wakeup source leaks on device unbind 2025-05-02 07:39:17 +02:00
gpu Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
greybus
hid Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
hsi HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition 2025-05-02 07:39:18 +02:00
hv
hwmon Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
hwspinlock
hwtracing Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
i2c Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
i3c Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
ide
idle
iio Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
infiniband This is the 5.4.296 stable release 2025-07-18 10:57:54 +00:00
input Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
interconnect
iommu Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
ipack
irqchip Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
isdn
leds Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
lightnvm
macintosh
mailbox Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mcb mcb: fix a double free bug in chameleon_parse_gdd() 2025-05-02 07:39:26 +02:00
md Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
media Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
memory
memstick
message
mfd Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
misc Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mmc Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mtd Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
mux
net UPSTREAM: wireguard: peerlookup: take lock before checking hash in replace operation 2025-09-24 12:16:37 +02:00
nfc
ntb ntb: reduce stack usage in idt_scan_mws 2025-05-02 07:39:28 +02:00
nubus
nvdimm libnvdimm/labels: Fix divide error in nd_label_data_init() 2025-06-04 14:32:30 +02:00
nvme nvmet-tcp: don't restore null sk_state_change 2025-06-04 14:32:35 +02:00
nvmem Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
of Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
opp
oprofile
parisc
parport
pci Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
pcmcia
perf Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
phy Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
pinctrl Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
platform Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
pnp
power Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
powercap
pps
ps3
ptp
pwm Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
rapidio drivers/rapidio/rio_cm.c: prevent possible heap overwrite 2025-06-27 11:02:56 +01:00
ras
regulator Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
remoteproc
reset
rpmsg Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
rtc Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
s390 scsi: s390: zfcp: Ensure synchronous unit_add 2025-06-27 11:02:56 +01:00
sbus
scsi Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
sfi
sh
siox
slimbus Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
soc Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
soundwire
spi Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
spmi
ssb
staging Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
target This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
tc
tee tee: Prevent size calculation wraparound on 32-bit kernels 2025-06-27 11:02:55 +01:00
thermal Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
thunderbolt thunderbolt: Do not double dequeue a configuration request 2025-06-27 11:02:44 +01:00
tty Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
uio Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
usb Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
vfio
vhost
video Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
virt
virtio
visorbus
vlynq
vme
w1
watchdog watchdog: da9052_wdt: respect TWDMIN 2025-06-27 11:02:55 +01:00
xen xen/swiotlb: relax alignment requirements 2025-06-04 14:32:37 +02:00
zorro
Kconfig
Makefile
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