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[v3,0/2] Use RNG to get random behaviour

Message ID 20201218092804.19753-1-matthias.bgg@kernel.org
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Series Use RNG to get random behaviour | expand

Message

Matthias Brugger Dec. 18, 2020, 9:28 a.m. UTC 
From: Matthias Brugger <mbrugger@suse.com>

For now bootp and uuid code use a weak seed for generating random data.
U-Boot as support for RNG devices now, so we should change to code to
use them if they are present. This will help mitigate issues like seen
in CVE-2019-11690.

Changes in v3:
- use IS_ENABLED instead of #if
- use 4 byte for entropy
- use IS_ENABLED instead of #if

Changes in v2:
- fix dm_rng_read() parameters
- add missing include
- fix dm_rng_read() parameters
- add missing include file

Matthias Brugger (2):
  lib: uuid: use RNG device if present
  net: Use NDRNG device in srand_mac()

 lib/uuid.c     | 21 ++++++++++++++++++---
 net/net_rand.h | 19 ++++++++++++++++++-
 2 files changed, 36 insertions(+), 4 deletions(-)