lists.openwall.net | 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 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <CAGXu5j+Ny=1YF0BkATbU3Xb-fb=_0a1W-iZ3jYFhTcWrTPqCJQ@mail.gmail.com> Date: Tue, 16 Apr 2019 08:55:59 -0500 From: Kees Cook <keescook@...gle.com> To: Daniel Borkmann <daniel@...earbox.net> Cc: Hannes Frederic Sowa <hannes@...essinduktion.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, "Reshetova, Elena" <elena.reshetova@...el.com>, Alexei Starovoitov <ast@...nel.org> Subject: Re: BPF RNG [correcting Alexei's email address and resending...] On Tue, Apr 16, 2019 at 8:54 AM Kees Cook <keescook@...gle.com> wrote: > > Hi, > > In looking at prandom_u32() users, I noticed that BPF uses its own > state variable with bpf_user_rnd_u32(). It appears that this state is > never reseeded like regular prandom_u32(). (See __prandom_timer().) Is > this intentional, or should reseeding be happening? > > -Kees > > -- > Kees Cook -- Kees Cook
Powered by blists - more mailing lists