Re: [PATCH 4.19 0/9] bpf: fix verifier selftests on inefficient unaligned access architectures

[Tiezhu Yang <yangtiezhu@loongson.cn>]

On 06/02/2021 11:27 AM, Tiezhu Yang wrote:
> With the following patch series, all verifier selftests pass on the archs which
> select HAVE_EFFICIENT_UNALIGNED_ACCESS.
>
> [v2,4.19,00/19] bpf: fix verifier selftests, add CVE-2021-29155, CVE-2021-33200 fixes
> https://patchwork.kernel.org/project/netdevbpf/cover/20210528103810.22025-1-ovidiu.panait@windriver.com/
>
> But on inefficient unaligned access architectures, there still exist many failures,
> so some patches about F_NEEDS_EFFICIENT_UNALIGNED_ACCESS are also needed, backport
> to 4.19 with a minor context difference.
>
> This patch series is based on the series (all now queued up by greg k-h):
> "bpf: fix verifier selftests, add CVE-2021-29155, CVE-2021-33200 fixes".
>
> Björn Töpel (2):
>    selftests/bpf: add "any alignment" annotation for some tests
>    selftests/bpf: Avoid running unprivileged tests with alignment
>      requirements
>
> Daniel Borkmann (2):
>    bpf: fix test suite to enable all unpriv program types
>    bpf: test make sure to run unpriv test cases in test_verifier
>
> David S. Miller (4):
>    bpf: Add BPF_F_ANY_ALIGNMENT.
>    bpf: Adjust F_NEEDS_EFFICIENT_UNALIGNED_ACCESS handling in
>      test_verifier.c
>    bpf: Make more use of 'any' alignment in test_verifier.c
>    bpf: Apply F_NEEDS_EFFICIENT_UNALIGNED_ACCESS to more ACCEPT test
>      cases.
>
> Joe Stringer (1):
>    selftests/bpf: Generalize dummy program types
>
>   include/uapi/linux/bpf.h                    |  14 ++
>   kernel/bpf/syscall.c                        |   7 +-
>   kernel/bpf/verifier.c                       |   3 +
>   tools/include/uapi/linux/bpf.h              |  14 ++
>   tools/lib/bpf/bpf.c                         |   8 +-
>   tools/lib/bpf/bpf.h                         |   2 +-
>   tools/testing/selftests/bpf/test_align.c    |   4 +-
>   tools/testing/selftests/bpf/test_verifier.c | 224 ++++++++++++++++++++--------
>   8 files changed, 206 insertions(+), 70 deletions(-)
>

Hi Greg and Sasha,

Could you please apply this series to 4.19?
Any comments will be much appreciated.

Thanks,
Tiezhu