pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()

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

CVE-2026-23038 · Microsoft / collected KEV context

cve-program · CVE-2026-23038

• https://git.kernel.org/stable/c/e2dde5dafb80f1af4028ed10ad255f42af71c784
• https://git.kernel.org/stable/c/27c90d8ed81e7a289c9fe41b5e31d8bb609a3385
• https://git.kernel.org/stable/c/34b9dd179818ff7af2b36410985fd8166573c62d
• https://git.kernel.org/stable/c/869862056e100973e76ce9f5f1b01837771b7722
• https://git.kernel.org/stable/c/86da7efd12295a7e2b4abde5e5984c821edd938f
• https://git.kernel.org/stable/c/ed5d3f2f6885eb99f729e6ffd946e3aa058bd3eb
• https://git.kernel.org/stable/c/0c728083654f0066f5e10a1d2b0bd0907af19a58

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