From: Daniel Borkmann <daniel@iogearbox.net>
To: ast@kernel.org
Cc: jannh@google.com, netdev@vger.kernel.org,
Daniel Borkmann <daniel@iogearbox.net>
Subject: [PATCH bpf 0/2] bpf fix to reject mixing ptr / scalar alu op on unpriv
Date: Sun, 6 Jan 2019 00:54:36 +0100 [thread overview]
Message-ID: <20190105235438.5944-1-daniel@iogearbox.net> (raw)
Follow-up fix to 979d63d50c0c ("bpf: prevent out of bounds speculation
on pointer arithmetic") in order to reject a corner case for sanitation
when ptr / scalars are mixed in the same alu op.
Thanks!
Daniel Borkmann (2):
bpf: fix sanitation of alu op with pointer / scalar type from different paths
bpf: add various test cases for alu op on mixed dst register types
include/linux/bpf_verifier.h | 1 +
kernel/bpf/verifier.c | 61 +++++++++++---
tools/testing/selftests/bpf/test_verifier.c | 120 ++++++++++++++++++++++++++++
3 files changed, 169 insertions(+), 13 deletions(-)
--
2.9.5
next reply other threads:[~2019-01-05 23:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-05 23:54 Daniel Borkmann [this message]
2019-01-05 23:54 ` [PATCH bpf 1/2] bpf: fix sanitation of alu op with pointer / scalar type from different paths Daniel Borkmann
2019-01-05 23:54 ` [PATCH bpf 2/2] bpf: add various test cases for alu op on mixed dst register types Daniel Borkmann
2019-01-06 5:34 ` [PATCH bpf 0/2] bpf fix to reject mixing ptr / scalar alu op on unpriv Alexei Starovoitov
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