add CVE-2025-39682_lts_cos_mitigation#18
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update from upstream
- Remove unused globals (buf2, sprayfd2) and remove unneeded sprayfd socket spray that was confirmed unnecessary via remote testing - Rename variables to descriptive names: pfd→splice_pipe, pfd2→uaf_pipe, pfds→page_spray_pipes, addrs→pte_trigger_maps, dummy_serv/cli→aux_client/conn, tpfd→victim_pte_pipe_fd, pa→core_pattern_pte, etc. - Add #define constants with comments for all magic numbers: PAGE_SPRAY_PIPE_COUNT, PTE_SPRAY_MAP_COUNT, PTE_MAP_STRIDE, PTE_FLAGS_RW, PHYSMAP_ZERO_OFFSET, PHYSMAP_CORE_PATTERN - Add top-level block comment explaining the full exploit chain (page UAF → writable pipe → PTE reclaim → core_pattern write) - Add numbered step comments throughout main() keyed to kernel function names (tls_strp_load_anchor_with_queue, spd_fill_page, get_page, etc.) - Rename TLS record variables to tls_appdata_record, tls_handshake_record, tls_spliced_record for clarity - All three targets verified working on remote after changes
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Resolves maintainer comment to move the inline Python script from vulnerability.md into a standalone, runnable .py file.
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