linux-kernel - Re: [PATCH bpf v3 0/6] Fix bugs found by ASAN when running selftests

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Date:   Tue, 11 Oct 2022 14:30:01 +0800
From:   Xu Kuohai <xukuohai@...wei.com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
CC:     <bpf@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-kselftest@...r.kernel.org>, <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>,
        Alan Maguire <alan.maguire@...cle.com>,
        Delyan Kratunov <delyank@...com>,
        Lorenzo Bianconi <lorenzo@...nel.org>
Subject: Re: [PATCH bpf v3 0/6] Fix bugs found by ASAN when running selftests

On 10/11/2022 9:37 AM, Andrii Nakryiko wrote:
> On Mon, Oct 10, 2022 at 7:08 AM Xu Kuohai <xukuohai@...wei.com> wrote:
>>
> 
> Thanks for the fixes! I left a few comments in a few patches, please
> address those. But also
> please provide a commit message, even if a single line one. Kernel
> style dictates that the commit message shouldn't be empty.
> 

Will do, thanks

> And I think none of these fixes are critical enough to go to bpf tree,
> please target bpf-next for next revision. Thanks.
> 

Ok, will target to bpf-next branch, targeting bpf tree just because
Documentation/bpf/bpf_devel_QA.rst says bpf-next is for features

> 
>> v3:
>> - Fix error failure of case test_xdp_adjust_tail_grow exposed by this series
>>
>> v2: https://lore.kernel.org/bpf/20221010070454.577433-1-xukuohai@huaweicloud.com
>> - Rebase and fix conflict
>>
>> v1: https://lore.kernel.org/bpf/20221009131830.395569-1-xukuohai@huaweicloud.com
>>
>> Xu Kuohai (6):
>>    libbpf: Fix use-after-free in btf_dump_name_dups
>>    libbpf: Fix memory leak in parse_usdt_arg()
>>    selftests/bpf: Fix memory leak caused by not destroying skeleton
>>    selftest/bpf: Fix memory leak in kprobe_multi_test
>>    selftests/bpf: Fix error failure of case test_xdp_adjust_tail_grow
>>    selftest/bpf: Fix error usage of ASSERT_OK in xdp_adjust_tail.c
>>
>>   tools/lib/bpf/btf_dump.c                      | 47 +++++++++++----
>>   tools/lib/bpf/usdt.c                          | 59 +++++++++++--------
>>   .../bpf/prog_tests/kprobe_multi_test.c        | 17 +++---
>>   .../selftests/bpf/prog_tests/map_kptr.c       |  3 +-
>>   .../selftests/bpf/prog_tests/tracing_struct.c |  3 +-
>>   .../bpf/prog_tests/xdp_adjust_tail.c          |  7 ++-
>>   6 files changed, 86 insertions(+), 50 deletions(-)
>>
>> --
>> 2.30.2
>>
> .