netdev - Re: [PATCH net-next] bpf: map_get_next_key to return first key on NULL

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 25 Apr 2017 11:57:57 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ast@...com
Cc:     daniel@...earbox.net, qinteng@...com, netdev@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH net-next] bpf: map_get_next_key to return first key on
 NULL

From: Alexei Starovoitov <ast@...com>
Date: Mon, 24 Apr 2017 19:00:37 -0700

> From: Teng Qin <qinteng@...com>
> 
> When iterating through a map, we need to find a key that does not exist
> in the map so map_get_next_key will give us the first key of the map.
> This often requires a lot of guessing in production systems.
> 
> This patch makes map_get_next_key return the first key when the key
> pointer in the parameter is NULL.
> 
> Signed-off-by: Teng Qin <qinteng@...com>
> Signed-off-by: Alexei Starovoitov <ast@...nel.org>
> Acked-by: Daniel Borkmann <daniel@...earbox.net>

Applied, thanks Alexei.