CI / lint (pull_request) Failing after 56s
CI / build-and-test (pull_request) Skipped
CI / sanitizers (address) (pull_request) Skipped
CI / sanitizers (undefined) (pull_request) Skipped
CI / fuzz-build (pull_request) Skipped
CI / coverage (pull_request) Skipped
CI / valgrind (pull_request) Skipped
Recreate char/block nodes via mknodat (privilege-gated, EPERM->warn+skip) and FIFOs via mkfifoat; new STATUS_SPECIAL frame + validated rdev; sockets skipped; -copy-devices copies st_size; -write-devices O_NOFOLLOW+O_NONBLOCK warn+skip. preserve_specials/copy_devices/write_devices cross the wire. PROTOCOL_VERSION 2.12.0->2.13.0. Review fixes: -m source-removal keeps recreated specials, FIFO ENXIO skip, rdev bounds at chunk_deserialize, STATUS_ERROR on receive branch, scanner_prepare_special dedup.