netdev - [PATCH bpf-next 0/2] tools: bpftool: update prog names list and fix segfault

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-next>] [day] [month] [year] [list]

Date:   Fri, 24 Jul 2020 10:06:16 +0100
From:   Quentin Monnet <quentin@...valent.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org,
        Paul Chaignon <paul@...ium.io>,
        Quentin Monnet <quentin@...valent.com>
Subject: [PATCH bpf-next 0/2] tools: bpftool: update prog names list and fix segfault

Although probing features with bpftool works fine if bpftool's array of
program and map type names lack the latest kernel additions, it can crash
if there are some types missing _in the middle_ of the arrays. The case
recently occurred with the addition of the "sk_lookup" name, which skipped
the "lsm" in the list.

Let's update the list, and let's make sure it does not crash bpftool again
if we omit other types again in the future.

Quentin Monnet (2):
  tools: bpftool: skip type probe if name is not found
  tools: bpftool: add LSM type to array of prog names

 tools/bpf/bpftool/feature.c | 8 ++++++++
 tools/bpf/bpftool/prog.c    | 1 +
 2 files changed, 9 insertions(+)

-- 
2.20.1