[WIP] Add mprotect syscall events#367
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Collect only read-write protection changes to keep event volume bounded while exposing raw and decoded protection data to consumers. Co-authored-by: Cursor <cursoragent@cursor.com>
Preserve the new CLOCK_BOOTTIME contract while moving the mprotect queue flag to the next available bit. Co-authored-by: Cursor <cursoragent@cursor.com>
Exercise every suppressed protection mask and keep the public event representation and documentation consistent. Co-authored-by: Cursor <cursoragent@cursor.com>
Describe the permission-bit filter without implying that optional protection modifiers are rejected.
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Summary
Collect
sys_enter_mprotectthrough eBPF and expose the address, length, and raw protection mask as a new Quark event.The probe requires both
PROT_READandPROT_WRITEbefore ring-buffer submission; execute and other modifier bits remain optional.quark-mon -uprints the mask in stable R/W/X order. This event is eBPF-only; no kprobe fallback is added.Issue: https://github.com/elastic/endpoint-dev/issues/20408
Verification
t_mprotect: PASS0through7; only RW and RWX are observed20260720T164000Z-mprotect-pr-ready-preflight— PASS20260720T181500Z-mprotect-pr-ready-acceptance— PASSObserved workload:
Companion PRs