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libbeat/common/seccomp: provide default policy for linux arm64 #27955

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merged 1 commit into from
Sep 19, 2021

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@efd6 efd6 commented Sep 16, 2021

What does this PR do?

This change adds a default seccomp policy for GOOS=linux GOARCH=arm64.

Why is it important?

Arm64 is an increasingly important target, so adding seccomp protection to that arch is a valuable addition.

Checklist

  • My code follows the style guidelines of this project
  • I have commented my code, particularly in hard-to-understand areas
    - [ ] I have made corresponding changes to the documentation
    - [ ] I have made corresponding change to the default configuration files
    - [ ] I have added tests that prove my fix is effective or that my feature works
  • I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Author's Checklist

  • Ideally, this would be tested on an arm64 builder.

Note that unlike GOARCH!=arm64 arm64 does not have fork or vfork syscalls. However, Go's fork exec does not use fork(2) from what I can see, rather using clone(2) https://linux.die.net/man/2/clone. Perhaps clone should be added to this and the arm policy? (It's worth noting that clone is in the whitelist for amd64 and 386).

How to test this PR locally

Standard testing.

Related issues

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@botelastic botelastic bot added the needs_team Indicates that the issue/PR needs a Team:* label label Sep 16, 2021
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@efd6 efd6 force-pushed the seccomp/arm64 branch 2 times, most recently from cf100d6 to c7ea2e1 Compare September 16, 2021 00:42
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elasticmachine commented Sep 16, 2021

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  • Start Time: 2021-09-16T01:18:33.374+0000

  • Duration: 222 min 44 sec

  • Commit: 46b7a26

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LGTM.

It's worth noting that clone is in the whitelist for amd64 and 386

IIRC I think we would have allowed only certain clone flags if we had that ability in our generated seccomp filters. But we didn't have argument filtering in go-seccomp-bpf.

@efd6 efd6 merged commit 01bd66d into elastic:master Sep 19, 2021
@efd6 efd6 deleted the seccomp/arm64 branch September 19, 2021 22:25
v1v added a commit to v1v/beats that referenced this pull request Sep 20, 2021
* upstream/master: (658 commits)
  Add complete k8s metadata through composable provider (elastic#27691)
  Revert "Fix issue where --insecure didn't propogate to Fleet Server ES connection (elastic#27969)" (elastic#27997)
  Remove deprecated kafka fields (elastic#27938)
  [Filebeat] Add Base64 encoded HMAC & UUID template functions to httpjson input (elastic#27873)
  Improve httpjson template function join (elastic#27996)
  Remove kubernetes.container.image alias (elastic#27898)
  [Elastic Agent] Golden files for program tests (elastic#27862)
  [Elastic Agent] Disable modules.d in metricbeat (elastic#27860)
  libbeat/common/seccomp: provide default policy for linux arm64 (elastic#27955)
  Fix logger statement in aws-s3 input (elastic#27982)
  Fix wrong merge (elastic#27976)
  Fix issue where --insecure didn't propogate to Fleet Server ES connection (elastic#27969)
  Forward-port 7.14.2 changelog to master (elastic#27975)
  [Filebeat] Removing duplicate modules (aliases) Observability (elastic#27919)
  Fix path in vagrant windows script (elastic#27966)
  [Filebeat] Removing duplicate modules (aliases) and Cyberark (elastic#27915)
  No changelog for 8.0.0-alpha2 (elastic#27961)
  Add write access to 'url.value' from 'request.transforms'. (elastic#27937)
  Docker: remove deprecated fields (elastic#27933)
  Filebeat: Make all filesets disabled in default configuration (elastic#27762)
  ...
Icedroid pushed a commit to Icedroid/beats that referenced this pull request Nov 1, 2021
@andrewkroh andrewkroh added the backport-v7.16.0 Automated backport with mergify label Nov 10, 2021
mergify bot pushed a commit that referenced this pull request Nov 10, 2021
andrewkroh pushed a commit that referenced this pull request Nov 11, 2021
… (#28922)

(cherry picked from commit 01bd66d)

Co-authored-by: Dan Kortschak <90160302+efd6@users.noreply.github.com>
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3 participants