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eb9d1bf079
linux/drivers/char
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Theodore Ts'o eb9d1bf079 random: only read from /dev/random after its pool has received 128 bits 
Immediately after boot, we allow reads from /dev/random before its
entropy pool has been fully initialized.  Fix this so that we don't
allow this until the blocking pool has received 128 bits.

We do this by repurposing the initialized flag in the entropy pool
struct, and use the initialized flag in the blocking pool to indicate
whether it is safe to pull from the blocking pool.

To do this, we needed to rework when we decide to push entropy from the
input pool to the blocking pool, since the initialized flag for the
input pool was used for this purpose.  To simplify things, we no
longer use the initialized flag for that purpose, nor do we use the
entropy_total field any more.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-04-17 10:30:21 -04:00
..
agp agp: efficeon: no need to set PG_reserved on GATT tables 2019-03-05 21:07:18 -08:00
hw_random ARM: SoC driver updates for 5.1 2019-03-06 09:41:12 -08:00
ipmi ipmi_si: Potential array underflow in hotmod_handler() 2019-02-22 14:59:25 -06:00
mwave char/mwave: fix potential Spectre v1 vulnerability 2019-01-18 16:42:05 +01:00
pcmcia Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
tpm tpm: Fix the type of the return value in calc_tpm2_event_size() 2019-04-08 15:58:54 -07:00
xilinx_hwicap char: xilinx_hwicap: Fix warnings in the driver 2017-08-28 17:04:47 +02:00
xillybus PCI: Add Altera vendor ID 2018-03-14 19:13:47 +01:00
adi.c char: sparc64: Add privileged ADI driver 2018-06-05 11:24:55 -07:00
apm-emulation.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
applicom.c applicom: Fix potential Spectre v1 vulnerabilities 2019-01-22 13:34:35 +01:00
applicom.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bsr.c
ds1620.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
dsp56k.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
dtlk.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
efirtc.c efirtc: remove unnecessary code efi_rtc_open & efi_rtc_close 2019-01-22 13:19:12 +01:00
hangcheck-timer.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
hpet.c hpet: Use struct_size() in kzalloc() 2019-02-26 12:53:55 +01:00
Kconfig tty: mark Siemens R3964 line discipline as BROKEN 2019-04-05 05:56:44 -10:00
lp.c char: lp: mark expected switch fall-through 2019-02-13 19:45:57 +01:00
Makefile char/generic_nvram: Remove as unused 2019-01-22 10:21:45 +01:00
mbcs.c mbcs: add .owner to mbcs struct file_operations 2019-01-22 14:56:00 +01:00
mbcs.h
mem.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
misc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
mspec.c char: mspec: change return type to vm_fault_t 2018-04-23 13:51:53 +02:00
nsc_gpio.c
nvram.c powerpc: Adopt nvram module for PPC64 2019-01-22 10:21:45 +01:00
nwbutton.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
nwbutton.h treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
nwflash.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
ps3flash.c
random.c random: only read from /dev/random after its pool has received 128 bits 2019-04-17 10:30:21 -04:00
raw.c treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
rtc.c RTC for 4.21 2019-01-01 13:24:31 -08:00
scx200_gpio.c
snsc_event.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
snsc.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
snsc.h
sonypi.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
tb0219.c
tlclk.c tlclk: clean an indentation issue, remove extraneous tabs 2018-11-11 12:58:27 -08:00
toshiba.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
ttyprintk.c ttyprintk: make the printk log level configurable 2018-11-09 08:58:18 -08:00
uv_mmtimer.c
virtio_console.c char: virtio: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-12-06 15:42:18 +01:00