fix(driver/bpf): fixed a typo in old ebpf probe code for linux >= 6.11.

[FedeDP]

What type of PR is this?

/kind bug

Any specific area of the project related to this PR?

/area driver-bpf

Does this PR require a change in the driver versions?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[FedeDP]

/milestone next-driver

[github-actions]

Please double check driver/SCHEMA_VERSION file. See versioning.

/hold

[FedeDP]

/hold
will port the latest-kernel CI to test against arm64 too.

[github-actions]

Perf diff from master - unit tests

     4.95%     -1.08%  [.] sinsp_parser::process_event
     7.96%     -0.83%  [.] sinsp::next
     3.40%     -0.70%  [.] sinsp_thread_manager::find_thread
     0.56%     +0.68%  [.] sinsp_evt::get_direction
     5.25%     +0.63%  [.] sinsp_evt::get_type
     2.34%     +0.54%  [.] sinsp_thread_manager::get_thread_ref
     8.96%     -0.44%  [.] sinsp_parser::reset
     0.92%     +0.42%  [.] scap_event_encode_params_v
     0.61%     +0.36%  [.] std::_Hashtable<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Identity, std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::hash<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, true, true> >::find
     1.56%     +0.34%  [.] scap_event_decode_params

Heap diff from master - unit tests

peak heap memory consumption: -5.18K
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Benchmarks diff from master

Comparing gbench_data.json to /root/actions-runner/_work/libs/libs/build/gbench_data.json
Benchmark                                                         Time             CPU      Time Old      Time New       CPU Old       CPU New
----------------------------------------------------------------------------------------------------------------------------------------------
BM_sinsp_split_mean                                            +0.0585         +0.0586           147           156           147           156
BM_sinsp_split_median                                          +0.0560         +0.0561           148           156           148           156
BM_sinsp_split_stddev                                          -0.6159         -0.6158             1             1             1             1
BM_sinsp_split_cv                                              -0.6371         -0.6370             0             0             0             0
BM_sinsp_concatenate_paths_relative_path_mean                  +0.0235         +0.0237            56            57            56            57
BM_sinsp_concatenate_paths_relative_path_median                +0.0106         +0.0109            56            57            56            57
BM_sinsp_concatenate_paths_relative_path_stddev                -0.6068         -0.6060             1             1             1             1
BM_sinsp_concatenate_paths_relative_path_cv                    -0.6158         -0.6151             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_mean                     +0.0175         +0.0177            25            25            25            25
BM_sinsp_concatenate_paths_empty_path_median                   +0.0160         +0.0163            24            25            24            25
BM_sinsp_concatenate_paths_empty_path_stddev                   +0.0478         +0.0450             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_cv                       +0.0298         +0.0269             0             0             0             0
BM_sinsp_concatenate_paths_absolute_path_mean                  +0.0100         +0.0100            56            56            56            56
BM_sinsp_concatenate_paths_absolute_path_median                +0.0107         +0.0107            56            56            56            56
BM_sinsp_concatenate_paths_absolute_path_stddev                -0.4383         -0.4375             0             0             0             0
BM_sinsp_concatenate_paths_absolute_path_cv                    -0.4439         -0.4431             0             0             0             0
BM_sinsp_split_container_image_mean                            +0.0028         +0.0028           391           392           391           392
BM_sinsp_split_container_image_median                          +0.0021         +0.0021           391           392           391           392
BM_sinsp_split_container_image_stddev                          +0.9072         +0.9084             1             2             1             2
BM_sinsp_split_container_image_cv                              +0.9019         +0.9032             0             0             0             0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.69%. Comparing base (c082ec3) to head (cbad4ab).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2114   +/-   ##
=======================================
  Coverage   73.69%   73.69%           
=======================================
  Files         253      253           
  Lines       31916    31916           
  Branches     5608     5613    +5     
=======================================
  Hits        23521    23521           
- Misses       8364     8365    +1     
+ Partials       31       30    -1     

Flag	Coverage Δ
libsinsp	73.69% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
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[FedeDP]

@leogr still working to improve the CI.
/hold

[github-actions]

X64 kernel testing matrix

KERNEL	CMAKE-CONFIGURE	KMOD BUILD	KMOD SCAP-OPEN	BPF-PROBE BUILD	BPF-PROBE SCAP-OPEN	MODERN-BPF SCAP-OPEN
amazonlinux2-4.19	🟢	🟢	🟢	🟢	🟢	🟡
amazonlinux2-5.10	🟢	🟢	🟢	🟢	🟢	🟢
amazonlinux2-5.15	🟢	🟢	🟢	🟢	🟢	🟢
amazonlinux2-5.4	🟢	🟢	🟢	🟢	🟢	🟡
amazonlinux2022-5.15	🟢	🟢	🟢	🟢	🟢	🟢
amazonlinux2023-6.1	🟢	🟢	🟢	🟢	🟢	🟢
archlinux-6.0	🟢	🟢	🟢	🟢	🟢	🟢
archlinux-6.7	🟢	🟢	🟢	🟢	🟢	🟢
centos-3.10	🟢	🟢	🟢	🟡	🟡	🟡
centos-4.18	🟢	🟢	🟢	🟢	🟢	🟢
centos-5.14	🟢	🟢	🟢	🟢	🟢	🟢
fedora-5.17	🟢	🟢	🟢	🟢	🟢	🟢
fedora-5.8	🟢	🟢	🟢	🟢	🟢	🟢
fedora-6.2	🟢	🟢	🟢	🟢	🟢	🟢
oraclelinux-3.10	🟢	🟢	🟢	🟡	🟡	🟡
oraclelinux-4.14	🟢	🟢	🟢	🟢	🟢	🟡
oraclelinux-5.15	🟢	🟢	🟢	🟢	🟢	🟢
oraclelinux-5.4	🟢	🟢	🟢	🟢	🟢	🟡
ubuntu-4.15	🟢	🟢	🟢	🟢	🟢	🟡
ubuntu-5.8	🟢	🟢	🟢	🟢	🟢	🟡
ubuntu-6.5	🟢	🟢	🟢	🟢	🟢	🟢

ARM64 kernel testing matrix

KERNEL	CMAKE-CONFIGURE	KMOD BUILD	KMOD SCAP-OPEN	BPF-PROBE BUILD	BPF-PROBE SCAP-OPEN	MODERN-BPF SCAP-OPEN
amazonlinux2-5.4	🟢	🟢	🟢	🟢	🟢	🟡
amazonlinux2022-5.15	🟢	🟢	🟢	🟢	🟢	🟢
fedora-6.2	🟢	🟢	🟢	🟢	🟢	🟢
oraclelinux-4.14	🟢	🟢	🟢	🟡	🟡	🟡
oraclelinux-5.15	🟢	🟢	🟢	🟢	🟢	🟢
ubuntu-6.5	🟢	🟢	🟢	🟢	🟢	🟢

[Molter73]

/approve

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FedeDP, Molter73

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[FedeDP]

Ok i expanded the latest-kernel CI to test the build on arm64 too: https://github.com/falcosecurity/libs/actions/runs/11363216135/job/31606690972

/unhold

[FedeDP]

cc @leogr @Molter73