Add kernel module name and taint fields to load_module events#761
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nicholasberlin wants to merge 3 commits into
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Add kernel module name and taint fields to load_module events#761nicholasberlin wants to merge 3 commits into
nicholasberlin wants to merge 3 commits into
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Adds process.Ext.load_module.{name,version,src_version,taints,
taint_flags} for Linux load_module process events. Endpoint now
reads the module name and taint bitmask from the kernel's
module_load tracepoint (via quark) and reports whether a loaded
LKM taints the kernel (e.g. out-of-tree or unsigned modules).
Regenerated: process fields.yml, docs/README.md, schemas/v1, and
the load_module custom documentation.
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@nicholasberlin branching was a little delayed in this repo, Is this change for |
pzl
requested review from
pzl
and removed request for
paul-tavares and
szwarckonrad
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I plan to backport to 9.5. Happy to hold off until you are ready. How do I indicate it should be backported? With labels? |
Sample values for the new process.Ext.load_module.* mappings so the automated mapping tests exercise them. taints 12288 corresponds to taint_flags OE (out-of-tree + unsigned).
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Summary
Adds five new fields to Linux
load_moduleprocess events:process.Ext.load_module.namemod->name)process.Ext.load_module.versionMODULE_VERSION()process.Ext.load_module.src_versionprocess.Ext.load_module.taintsprocess.Ext.load_module.taint_flagsOE= out-of-tree + unsigned); only present when nonzeroEndpoint reads these from the kernel's
module_loadtracepoint (via quark's eBPF probes), giving visibility into which LKM was loaded and whether it tainted the kernel — useful for detecting out-of-tree/unsigned rootkit-style module loads.Companion changes:
mod->taintsto the probe andquark_module_load)nberlin/quark-module-load-taints(plumbs the fields into ES documents; its EAF testtest_events_load_moduleasserts them)What changed
custom_schemas/custom_process.yml— field definitionscustom_subsets/elastic_endpoint/process/process.yaml— subset entriescustom_documentation/src/.../linux_process_load_module.yaml— document the new fieldspackage/endpoint/data_stream/process/fields/fields.yml,package/endpoint/docs/README.md,schemas/v1/process/process.yaml,custom_documentation/doc/.../linux_process_load_module.md🤖 Generated with Claude Code