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x-pack/auditbeat/tracing: fix regexp for kprobe description line #28609

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merged 1 commit into from
Oct 25, 2021

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@efd6 efd6 commented Oct 25, 2021

What does this PR do?

This change fixes a bug that leaves stale return kprobes installed after auditbeat exit.

The pattern was previously lacking knowledge of the MAXACTIVE field that may be
present in return probes. The new pattern is slightly less strict than it could
be but is simpler for it.

Why is it important?

While the presence of the stale probes is not strictly an issue, their presence gets in the way of debugging other issues.

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

How to test this PR locally

See reproducer instructions at #28608.

Related issues

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@efd6 efd6 requested a review from adriansr October 25, 2021 02:27
@efd6 efd6 requested a review from a team as a code owner October 25, 2021 02:27
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Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

@botelastic botelastic bot added needs_team Indicates that the issue/PR needs a Team:* label and removed needs_team Indicates that the issue/PR needs a Team:* label labels Oct 25, 2021
@efd6 efd6 force-pushed the audit/removeprobes branch 2 times, most recently from c9990a8 to c77961d Compare October 25, 2021 02:35
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elasticmachine commented Oct 25, 2021

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  • Start Time: 2021-10-25T10:32:44.934+0000

  • Duration: 62 min 26 sec

  • Commit: 811bfd4

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This is related to and partially addresses #20327

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LGTM, just a minor correction to the changelog

@@ -34,6 +34,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
- File integrity dataset: Remove non-ECS `hash.*` fields. Hashes are under `file.hash.*`. {issue}19039[19039] {pull}28378[28378]
- Auditd dataset: Removes the authentication_success and authentication_failure event.type values for user logins. {issue}19039[19039] {pull}28378[28378]
- Fix handling of long file names on Windows. {issue}25334[25334] {pull}28517[28517]
- Fix uninstallation of return kprobes {issue}28608[28608] {pull}28609[28609]
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Suggested change
- Fix uninstallation of return kprobes {issue}28608[28608] {pull}28609[28609]
- System/socket dataset: Fix uninstallation of return kprobes {issue}28608[28608] {pull}28609[28609]

The pattern was previously lacking knowledge of the MAXACTIVE field that may be
present in return probes. The new pattern is slightly less strict than it could
be but is simpler for it.
@efd6 efd6 merged commit 362c708 into elastic:master Oct 25, 2021
mergify bot pushed a commit that referenced this pull request Oct 25, 2021
)

The pattern was previously lacking knowledge of the MAXACTIVE field that may be
present in return probes. The new pattern is slightly less strict than it could
be but is simpler for it.

(cherry picked from commit 362c708)
efd6 added a commit that referenced this pull request Oct 26, 2021
) (#28628)

The pattern was previously lacking knowledge of the MAXACTIVE field that may be
present in return probes. The new pattern is slightly less strict than it could
be but is simpler for it.

(cherry picked from commit 362c708)

Co-authored-by: Dan Kortschak <90160302+efd6@users.noreply.github.com>
v1v added a commit to v1v/beats that referenced this pull request Oct 26, 2021
…urnalbeat-ci

* upstream/master: (49 commits)
  [CI]: use the downstream packaging pipeline for branches/tags (elastic#28589)
  fix: use declarative style for complete variant of the elastic-agent (elastic#28526)
  x-pack/auditbeat/tracing: fix regexp for kprobe description line (elastic#28609)
  docs: Update `api_key` example on elasticsearch output (elastic#28606)
  chore: add build scripts to CODEOWNERS (elastic#28615)
  Osquerybeat: Fix host_processes missing cmdline arguments (elastic#28622)
  Add note about changes to regexp package in Golang (elastic#28616)
  CI: nightly/weekly builds for 7.x targeting 7.16 instead (elastic#28612)
  Osquerybeat: Fix extenstion unable to start on windows (elastic#28598)
  Osquerybeat: Return the query result count with the action response (elastic#28576)
  Agent: Allow custom response properties in the action response (elastic#28575)
  [Heartbeat] Only setuid in elastic-agent image (elastic#28577)
  Fix formatting of `mapStateJSON` and `layerListJSON` in dashboard assets (elastic#28530)
  CI: refactor the run e2e build (elastic#28502)
  Use fsnotify with long windows name-safe changes (elastic#28517)
  Remove unneeded mergify config
  backport: Add 7.16 branch (elastic#28560)
  Add proxy_url support to threatintel module's malwarebazaar fileset (elastic#28533)
  Osquerybeat: Implement host_users, host_groups, host_processes tables as a part of our osquery_extension. (elastic#28434)
  [Heartbeat] Make run_once syntax a boolean (elastic#28548)
  ...
Icedroid pushed a commit to Icedroid/beats that referenced this pull request Nov 1, 2021
…stic#28609)

The pattern was previously lacking knowledge of the MAXACTIVE field that may be
present in return probes. The new pattern is slightly less strict than it could
be but is simpler for it.
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auditbeat: kprobes remain inserted after process termination
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