linux-kernel - [PATCH bpf 0/5] bpf: fix map permissions check and cleanup code around

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Message-Id: <20200527185700.14658-1-a.s.protopopov@gmail.com>
Date:   Wed, 27 May 2020 18:56:55 +0000
From:   Anton Protopopov <a.s.protopopov@...il.com>
To:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Shuah Khan <shuah@...nel.org>
Cc:     Anton Protopopov <a.s.protopopov@...il.com>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: [PATCH bpf 0/5] bpf: fix map permissions check and cleanup code around

This series fixes a bug in the map_lookup_and_delete_elem() function which
should check for the FMODE_CAN_READ bit, because it returns data to user space.
The rest of commits fix some typos and comment in selftests and extend the
test_map_wronly test to cover the new check for the BPF_MAP_TYPE_STACK and
BPF_MAP_TYPE_QUEUE map types.

Anton Protopopov (5):
  selftests/bpf: fix a typo in test_maps
  selftests/bpf: cleanup some file descriptors in test_maps
  selftests/bpf: cleanup comments in test_maps
  bpf: fix map permissions check
  selftests/bpf: add tests for write-only stacks/queues

 kernel/bpf/syscall.c                    |  3 +-
 tools/testing/selftests/bpf/test_maps.c | 52 ++++++++++++++++++++++---
 2 files changed, 49 insertions(+), 6 deletions(-)

-- 
2.20.1