Re: [PATCH bpf 0/3] bpf: improve verifier resilience

2018-12-04 Thread Daniel Borkmann 
On 12/04/2018 07:46 AM, Alexei Starovoitov wrote:
> Three patches to improve verifier ability to handle pathological bpf programs
> with a lot of branches:
> - make sure prog_load syscall can be aborted
> - improve branch taken analysis
> - introduce per-insn complexity limit for unprivileged programs
> 
> Alexei Starovoitov (3):
>   bpf: check pending signals while verifying programs
>   bpf: improve verifier branch analysis
>   bpf: add per-insn complexity limit
> 
>  kernel/bpf/verifier.c   | 103 +---
>  tools/testing/selftests/bpf/test_verifier.c |   4 +-
>  2 files changed, 91 insertions(+), 16 deletions(-)
> 

Applied to bpf, thanks!

[PATCH bpf 0/3] bpf: improve verifier resilience

2018-12-03 Thread Alexei Starovoitov 
Three patches to improve verifier ability to handle pathological bpf programs
with a lot of branches:
- make sure prog_load syscall can be aborted
- improve branch taken analysis
- introduce per-insn complexity limit for unprivileged programs

Alexei Starovoitov (3):
  bpf: check pending signals while verifying programs
  bpf: improve verifier branch analysis
  bpf: add per-insn complexity limit

 kernel/bpf/verifier.c   | 103 +---
 tools/testing/selftests/bpf/test_verifier.c |   4 +-
 2 files changed, 91 insertions(+), 16 deletions(-)

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2.17.1