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

Message ID 1622604473-781-1-git-send-email-yangtiezhu@loongson.cn
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Series bpf: fix verifier selftests on inefficient unaligned access architectures | expand

Message

Tiezhu Yang June 2, 2021, 3:27 a.m. UTC
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(-)

Comments

Tiezhu Yang June 5, 2021, 7:16 a.m. UTC | #1
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
Greg KH June 8, 2021, 2:40 p.m. UTC | #2
On Sat, Jun 05, 2021 at 03:16:44PM +0800, Tiezhu Yang wrote:
> 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?


Please relax and give us longer than just 2 days to respond :)

I'll go review this now...

greg k-h
Greg KH June 8, 2021, 2:45 p.m. UTC | #3
On Wed, Jun 02, 2021 at 11:27:44AM +0800, 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.


Looks good, now queued up, thanks.

greg k-h