From: Alexei Starovoitov <ast@kernel.org>
To: "David S . Miller" <davem@davemloft.net>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
Jann Horn <jannh@google.com>, Edward Cree <ecree@solarflare.com>,
<netdev@vger.kernel.org>, <kernel-team@fb.com>
Subject: [PATCH bpf 0/9] bpf: verifier security fixes
Date: Mon, 18 Dec 2017 20:11:52 -0800 [thread overview]
Message-ID: <20171219041201.1979983-1-ast@kernel.org> (raw)
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
next reply other threads:[~2017-12-19 4:12 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-19 4:11 Alexei Starovoitov [this message]
2017-12-19 4:11 ` [PATCH bpf 1/9] bpf/verifier: fix bounds calculation on BPF_RSH Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 2/9] bpf: fix incorrect sign extension in check_alu_op() Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 3/9] bpf: fix incorrect tracking of register size truncation Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 4/9] bpf: fix 32-bit ALU op verification Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 5/9] bpf: fix missing error return in check_stack_boundary() Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 6/9] bpf: force strict alignment checks for stack pointers Alexei Starovoitov
2017-12-19 4:11 ` [PATCH bpf 7/9] bpf: don't prune branches when a scalar is replaced with a pointer Alexei Starovoitov
2017-12-19 4:12 ` [PATCH bpf 8/9] bpf: fix integer overflows Alexei Starovoitov
2017-12-19 10:29 ` Edward Cree
2017-12-19 19:57 ` Alexei Starovoitov
2017-12-19 4:12 ` [PATCH bpf 9/9] selftests/bpf: add tests for recent bugfixes Alexei Starovoitov
2017-12-21 2:20 ` [PATCH bpf 0/9] bpf: verifier security fixes Daniel Borkmann
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