From: Alexei Starovoitov <ast@kernel.org>
To: "David S . Miller" <davem@davemloft.net>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
Jann Horn <jannh@google.com>, <netdev@vger.kernel.org>,
<kernel-team@fb.com>
Subject: [PATCH v2 bpf-next 0/3] bpf: two stack check fixes
Date: Mon, 25 Dec 2017 13:15:39 -0800 [thread overview]
Message-ID: <20171225211542.3155576-1-ast@kernel.org> (raw)
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
next reply other threads:[~2017-12-25 21:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-25 21:15 Alexei Starovoitov [this message]
2017-12-25 21:15 ` [PATCH v2 bpf-next 1/3] bpf: fix maximum stack depth tracking logic Alexei Starovoitov
2017-12-25 21:15 ` [PATCH v2 bpf-next 2/3] selftests/bpf: additional stack depth tests Alexei Starovoitov
2017-12-25 21:15 ` [PATCH v2 bpf-next 3/3] bpf: fix max call depth check Alexei Starovoitov
2017-12-27 23:08 ` [PATCH v2 bpf-next 0/3] bpf: two stack check fixes Daniel Borkmann
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