linux/drivers/char
Jason A. Donenfeld 8717627d6a random: document crng_fast_key_erasure() destination possibility
This reverts 35a33ff380 ("random: use memmove instead of memcpy for
remaining 32 bytes"), which was made on a totally bogus basis. The thing
it was worried about overlapping came from the stack, not from one of
its arguments, as Eric pointed out.

But the fact that this confusion even happened draws attention to the
fact that it's a bit non-obvious that the random_data parameter can
alias chacha_state, and in fact should do so when the caller can't rely
on the stack being cleared in a timely manner. So this commit documents
that.

Reported-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-04-25 17:26:40 +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 ipmi: initialize len variable 2022-03-20 12:37:15 -05:00
mwave char/mwave: Adjust io port register size 2021-12-03 14:27:06 +01:00
pcmcia
tpm xen: branch for v5.18-rc1 2022-03-28 14:32:39 -07:00
xilinx_hwicap xilinx_hwicap: cleanup comments 2022-02-25 12:08:57 +01:00
xillybus
adi.c
apm-emulation.c
applicom.c applicom: unneed to initialise statics to 0 2021-12-21 10:14:08 +01:00
applicom.h
bsr.c powerpc/BSR: Make use of the helper macro LIST_HEAD() 2022-02-25 12:10:15 +01:00
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c hpet: remove unused writeq/readq function definitions 2022-02-04 16:45:39 +01:00
Kconfig random: treat bootloader trust toggle the same way as cpu trust toggle 2022-03-25 08:49:40 -06:00
lp.c
Makefile
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: document crng_fast_key_erasure() destination possibility 2022-04-25 17:26:40 +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