WSL2-Linux-Kernel/drivers/char
Jason A. Donenfeld 35a33ff380 random: use memmove instead of memcpy for remaining 32 bytes
In order to immediately overwrite the old key on the stack, before
servicing a userspace request for bytes, we use the remaining 32 bytes
of block 0 as the key. This means moving indices 8,9,a,b,c,d,e,f ->
4,5,6,7,8,9,a,b. Since 4 < 8, for the kernel implementations of
memcpy(), this doesn't actually appear to be a problem in practice. But
relying on that characteristic seems a bit brittle. So let's change that
to a proper memmove(), which is the by-the-books way of handling
overlapping memory copies.

Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-04-16 12:53:31 +02:00
..
agp dma-mapping updates for Linux 5.18 2022-03-29 08:50:14 -07:00
hw_random ARM driver updates for 5.18 2022-03-23 18:23:13 -07:00
ipmi
mwave
pcmcia
tpm xen: branch for v5.18-rc1 2022-03-28 14:32:39 -07:00
xilinx_hwicap
xillybus
Kconfig random: treat bootloader trust toggle the same way as cpu trust toggle 2022-03-25 08:49:40 -06:00
Makefile
adi.c
apm-emulation.c
applicom.c
applicom.h
bsr.c
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c
lp.c
mem.c Revert "random: block in /dev/urandom" 2022-03-22 09:17:20 -07:00
misc.c
mspec.c
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c
ps3flash.c
random.c random: use memmove instead of memcpy for remaining 32 bytes 2022-04-16 12:53:31 +02:00
scx200_gpio.c
sonypi.c
tb0219.c
tlclk.c
toshiba.c
ttyprintk.c
uv_mmtimer.c
virtio_console.c Char/Misc and other driver updates for 5.18-rc1 2022-03-28 12:27:35 -07:00