APPLIED[F]: [SRU Focal/Groovy 0/3] (LP: #1920995) selftests: bpf verifier fails after sanitize_ptr_alu fixes

[Kleber Souza]

On 23.03.21 21:28, Thadeu Lima de Souza Cascardo wrote:
> BugLink: https://bugs.launchpad.net/bugs/1920995
> 
> [Impact]
> bpf selftests will fail after applying fixes from 5.8.0-48 and 5.4.0-70.
> 
> [Fix]
> Apply selftests fixes and bpf verifier simplification and hardening.
> 
> [Test Plan]
> Ran the verifier test and other tests for the latest BPF fixes.
> 
> [Potential regression]
> BPF programs that worked before may stop working or, worse, programs that
> should not be allowed may start working.
> 
> Piotr Krysiuk (3):
>    bpf: Simplify alu_limit masking for pointer arithmetic
>    bpf: Add sanity check for upper ptr_limit
>    bpf, selftests: Fix up some test_verifier cases for unprivileged
> 
>   kernel/bpf/verifier.c                         | 21 +++++++++------
>   .../selftests/bpf/verifier/bounds_deduction.c | 27 +++++++++++++------
>   tools/testing/selftests/bpf/verifier/unpriv.c | 15 ++++++++++-
>   .../selftests/bpf/verifier/value_ptr_arith.c  | 23 +++++++++++++++-
>   4 files changed, 68 insertions(+), 18 deletions(-)
> 


Applied to focal/linux master-prep branch.

Thanks,
Kleber