netdev - [PATCH bpf 0/9] bpf: verifier security 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: <20171219041201.1979983-1-ast@kernel.org>
Date:   Mon, 18 Dec 2017 20:11:52 -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>,
        Edward Cree <ecree@...arflare.com>, <netdev@...r.kernel.org>,
        <kernel-team@...com>
Subject: [PATCH bpf 0/9] bpf: verifier security fixes

This patch set addresses a set of security vulnerabilities
in bpf verifier logic discovered by Jann Horn.
All of the patches are candidates for 4.14 stable.

Alexei Starovoitov (1):
  bpf: fix integer overflows

Edward Cree (1):
  bpf/verifier: fix bounds calculation on BPF_RSH

Jann Horn (7):
  bpf: fix incorrect sign extension in check_alu_op()
  bpf: fix incorrect tracking of register size truncation
  bpf: fix 32-bit ALU op verification
  bpf: fix missing error return in check_stack_boundary()
  bpf: force strict alignment checks for stack pointers
  bpf: don't prune branches when a scalar is replaced with a pointer
  selftests/bpf: add tests for recent bugfixes

 include/linux/bpf_verifier.h                |   4 +-
 kernel/bpf/verifier.c                       | 175 ++++++---
 tools/testing/selftests/bpf/test_verifier.c | 549 +++++++++++++++++++++++++++-
 3 files changed, 661 insertions(+), 67 deletions(-)

-- 
2.9.5