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| author | ache <ache@FreeBSD.org> | 2013-04-19 00:30:52 +0000 |
|---|---|---|
| committer | ache <ache@FreeBSD.org> | 2013-04-19 00:30:52 +0000 |
| commit | 60f7807df19873ac8b9fce428ca4198735d92067 (patch) | |
| tree | fa25310a8dd89ca7a6e6ae0ff9bec9876bb60c74 /sys/dev/random | |
| parent | 1110825468efffa72f05077e3a42f5e5fa6963ec (diff) | |
| download | FreeBSD-src-60f7807df19873ac8b9fce428ca4198735d92067.zip FreeBSD-src-60f7807df19873ac8b9fce428ca4198735d92067.tar.gz | |
Attempt to mitigate poor initialization of arc4 by one-shot
reinitialization from yarrow right after good entropy is harvested.
Approved by: secteam (delphij)
MFC after: 1 week
Diffstat (limited to 'sys/dev/random')
| -rw-r--r-- | sys/dev/random/randomdev_soft.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/random/randomdev_soft.c b/sys/dev/random/randomdev_soft.c index 004066eb..1742549 100644 --- a/sys/dev/random/randomdev_soft.c +++ b/sys/dev/random/randomdev_soft.c @@ -367,6 +367,8 @@ random_yarrow_unblock(void) selwakeuppri(&random_systat.rsel, PUSER); wakeup(&random_systat); } + (void)atomic_cmpset_int(&arc4rand_iniseed_state, ARC4_ENTR_NONE, + ARC4_ENTR_HAVE); } static int |
