lkml.org 
[lkml]   [2017]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v4 04/13] security/keys: ensure RNG is seeded before use
On Thu, Jun 8, 2017 at 2:50 AM, Jason A. Donenfeld <Jason@zx2c4.com> wrote:
> On Thu, Jun 8, 2017 at 2:31 AM, Theodore Ts'o <tytso@mit.edu> wrote:
>> I'm guessing you changed key_alloc_serial() to return an int back when
>> you were thinking that you might use get_random_bytes_wait(), which
>> could return -ERESTARTSYS.
>>
>> Now that you're not doing this, but using get_random_u32() instead,
>> there's no point to change the function signature of
>> key_alloc_serial() and add an error check in key_alloc() that will
>> never fail, right? That's just adding a dead code path. Which the
>> compiler can probably optimize away, but why make the code slightly
>> harder to read than necessasry?
>
> Good catch, and thanks for reading these so thoroughly that you caught
> the churn artifacts. Do you want me to clean this up and resubmit, or
> are you planning on adjusting it in the dev branch?

Fixed it up here if you just want to grab this instead:

https://git.kernel.org/pub/scm/linux/kernel/git/zx2c4/linux.git/patch/?id=a0361e55bce30ace529ed8b28bd452e3ac0ee91f

\
 
 \ /
  Last update: 2017-06-12 01:20    [W:0.115 / U:0.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site