lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Fri, 28 Mar 2014 16:05:05 -0400 (EDT)
From:	David Miller <>
Subject: Re: [PATCH net v3] random32: avoid attempt to late reseed if in
 the middle of seeding

From: Daniel Borkmann <>
Date: Fri, 28 Mar 2014 17:38:42 +0100

> From: Sasha Levin <>
> Commit 4af712e8df ("random32: add prandom_reseed_late() and call when
> nonblocking pool becomes initialized") has added a late reseed stage
> that happens as soon as the nonblocking pool is marked as initialized.
> This fails in the case that the nonblocking pool gets initialized
> during __prandom_reseed()'s call to get_random_bytes(). In that case
> we'd double back into __prandom_reseed() in an attempt to do a late
> reseed - deadlocking on 'lock' early on in the boot process.
> Instead, just avoid even waiting to do a reseed if a reseed is already
> occuring.
> Fixes: 4af712e8df99 ("random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized")
> Signed-off-by: Sasha Levin <>
> Acked-by: Hannes Frederic Sowa <>
> Signed-off-by: Daniel Borkmann <>
> ---
>  Recommended for -stable as well. I'm resending the patch as v2
>  from [1] does not apply to the tree, perhaps some mail client
>  issue ...
>  [1]

Applied and queued up for -stable, thanks everyone.
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists