Re: [PATCH v3 05/13] security/keys: ensure RNG is seeded before use
On Tue, Jun 6, 2017 at 12:08 PM, David Howells wrote: > Jason A. Donenfeld wrote: > >> + key->serial = get_random_u32() >> 1; > > If this may sleep, it must be interruptible. That won't sleep. I could have made it get_random_u32_wait(), but we'd get into trouble at boottime. So instead, for now, I just use get_random_u32 rather than get_random_bytes, which can use the architectural random number generator, when the platform has one, which is available early on.
Re: [PATCH v3 05/13] security/keys: ensure RNG is seeded before use
Jason A. Donenfeld wrote: > + key->serial = get_random_u32() >> 1; If this may sleep, it must be interruptible. David