netdev - Re: [PATCH net-next 0/9] bpf: stack depth tracking

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 for Android: free password hash cracker in your pocket

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

Date:   Wed, 31 May 2017 19:30:04 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ast@...com
Cc:     daniel@...earbox.net, netdev@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH net-next 0/9] bpf: stack depth tracking

From: Alexei Starovoitov <ast@...com>
Date: Tue, 30 May 2017 13:31:26 -0700

> Introduce tracking of bpf program stack depth in the verifier and use that
> info to reduce bpf program stack consumption in the interpreter and x64 JIT.
> Other JITs can take advantage of it as well in the future.
> Most of the programs consume very little stack, so it's good optimization
> in general and it's the first step toward bpf to bpf function calls.
> 
> Also use internal opcode for bpf_tail_call() marking to make clear
> that jmp|call|x opcode is not uapi and may be used for actual
> indirect call opcode in the future.

Series applied, thanks Alexei.