netdev - [PATCH v2 bpf-next 0/3] bpf: two stack check fixes

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]

Message-ID: <20171225211542.3155576-1-ast@kernel.org>
Date:   Mon, 25 Dec 2017 13:15:39 -0800
From:   Alexei Starovoitov <ast@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>
CC:     Daniel Borkmann <daniel@...earbox.net>,
        Jann Horn <jannh@...gle.com>, <netdev@...r.kernel.org>,
        <kernel-team@...com>
Subject: [PATCH v2 bpf-next 0/3] bpf: two stack check fixes

Jann reported an issue with stack depth tracking. Fix it and add tests.
Also fix off-by-one error in MAX_CALL_FRAMES check.
This set is on top of Jann's "selftest for late caller stack size increase" test.

Alexei Starovoitov (3):
  bpf: fix maximum stack depth tracking logic
  selftests/bpf: additional stack depth tests
  bpf: fix max call depth check

 include/linux/bpf_verifier.h                |   1 +
 kernel/bpf/verifier.c                       |  86 +++++++++++----
 tools/testing/selftests/bpf/test_verifier.c | 156 ++++++++++++++++++++++++++++
 3 files changed, 225 insertions(+), 18 deletions(-)

-- 
2.9.5