netdev - Re: [PATCH net] bpf/verifier: reject invalid LD_ABS

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]

Message-Id: <20160414.013235.548560317273289663.davem@davemloft.net>
Date:	Thu, 14 Apr 2016 01:32:35 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	ast@...com
Cc:	daniel@...earbox.net, netdev@...r.kernel.org
Subject: Re: [PATCH net] bpf/verifier: reject invalid LD_ABS | BPF_DW
 instruction

From: Alexei Starovoitov <ast@...com>
Date: Tue, 12 Apr 2016 10:26:19 -0700

> verifier must check for reserved size bits in instruction opcode and
> reject BPF_LD | BPF_ABS | BPF_DW and BPF_LD | BPF_IND | BPF_DW instructions,
> otherwise interpreter will WARN_RATELIMIT on them during execution.
> 
> Fixes: ddd872bc3098 ("bpf: verifier: add checks for BPF_ABS | BPF_IND instructions")
> Signed-off-by: Alexei Starovoitov <ast@...nel.org>
> Acked-by: Daniel Borkmann <daniel@...earbox.net>

Applied and queued up for -stable, thanks.