ipc: fix to protect IPCS lookups using RCU

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2025-38212 · Microsoft / collected KEV context

cve-program · CVE-2025-38212

• https://git.kernel.org/stable/c/5f1e1573bf103303944fd7225559de5d8297539c
• https://git.kernel.org/stable/c/b968ba8bfd9f90914957bbbd815413bf6a98eca7
• https://git.kernel.org/stable/c/74bc813d11c30e28fc5261dc877cca662ccfac68
• https://git.kernel.org/stable/c/78297d53d3878d43c1d627d20cd09f611fa4b91d
• https://git.kernel.org/stable/c/5180561afff8e0f029073c8c8117c95c6512d1f9
• https://git.kernel.org/stable/c/68c173ea138b66d7dd1fd980c9bc578a18e11884
• https://git.kernel.org/stable/c/b0b6bf90ce2699a574b3683e22c44d0dcdd7a057
• https://git.kernel.org/stable/c/d66adabe91803ef34a8b90613c81267b5ded1472

No related operational record is retained in the current change model.