ACK: [SRU Bionic 0/3] (LP: #1920995) selftests: bpf verifier fails after sanitize_ptr_alu fixes

[Stefan Bader]

On 24.03.21 01:43, Thadeu Lima de Souza Cascardo wrote:
> BugLink: https://bugs.launchpad.net/bugs/1920995
> 
> [Impact]
> bpf selftests will fail after applying fixes from 4.15.0-140.
> 
> [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 ++++++++++------
>   tools/testing/selftests/bpf/test_verifier.c | 27 +++++++++++++++------
>   2 files changed, 32 insertions(+), 16 deletions(-)
> 
Acked-by: Stefan Bader <stefan.bader at canonical.com>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20210324/8d2e8203/attachment.sig>