smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().

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

CVE-2025-40139 · Microsoft / collected KEV context

cve-program · CVE-2025-40139

• https://git.kernel.org/stable/c/5a2fccc4b32c13ddde3676f9e15e1a9baa7d6fde
• https://git.kernel.org/stable/c/80d1fd39f4e37d836655e9f7ffccaf78925049bf
• https://git.kernel.org/stable/c/956c57daba55cf9ed25d9f2512883b8a1a927599
• https://git.kernel.org/stable/c/0736993bfe5c7a9c744ae3fac62d769dfdae54e1
• https://git.kernel.org/stable/c/935d783e5de9b64587f3adb25641dd8385e64ddb

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