netdev - [PATCH bpf 0/3] bpf: improve verifier resilience

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Message-ID: <20181204064606.803625-1-ast@kernel.org>
Date:   Mon, 3 Dec 2018 22:46:03 -0800
From:   Alexei Starovoitov <ast@...nel.org>
To:     "David S . Miller" <davem@...emloft.net>
CC:     <daniel@...earbox.net>, <ecree@...arflare.com>,
        <anatoly.trosinenko@...il.com>, <netdev@...r.kernel.org>,
        <kernel-team@...com>
Subject: [PATCH bpf 0/3] bpf: improve verifier resilience

Three patches to improve verifier ability to handle pathological bpf programs
with a lot of branches:
- make sure prog_load syscall can be aborted
- improve branch taken analysis
- introduce per-insn complexity limit for unprivileged programs

Alexei Starovoitov (3):
  bpf: check pending signals while verifying programs
  bpf: improve verifier branch analysis
  bpf: add per-insn complexity limit

 kernel/bpf/verifier.c                       | 103 +++++++++++++++++---
 tools/testing/selftests/bpf/test_verifier.c |   4 +-
 2 files changed, 91 insertions(+), 16 deletions(-)

-- 
2.17.1