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Jackie Liu
4416f8a9ed
LIVEUPDATE_SESSION_GET_NAME was developed in the liveupdate/next branch while the session type validation change was carried in liveupdate-fixes. When the conflict between the two branches was resolved, the GET_NAME operation descriptor picked up the structure and last member from RETRIEVE_FD. This makes both its known size and minimum size 16 bytes rather than 72. A zero-initialized request still succeeds because luo_session_get_name() writes the full name before luo_ucmd_respond() copies the full GET_NAME response to userspace. However, copy_struct_from_user() treats the output-only name field as unknown trailing data and rejects the request with -E2BIG if any byte in that field is nonzero. Use the GET_NAME structure and its name field in the descriptor. Link: https://lore.kernel.org/all/[email protected]/ Assisted-by: Codex:gpt-5.6-sol Reviewed-by: Pratyush Yadav (Google) <[email protected]> Signed-off-by: Jackie Liu <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Mike Rapoport (Microsoft) <[email protected]>