NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

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

CVE-2026-53391 · Microsoft / collected KEV context

cve-program · CVE-2026-53391

• https://git.kernel.org/stable/c/76b94cbd32aacf36a641956385a852635c6802b9
• https://git.kernel.org/stable/c/c8e4e0c701d0192a2efb6df059c0f9e19678c23d
• https://git.kernel.org/stable/c/6c344fff2feff9d4d716d8e4ad40e9b5040ee5ea
• https://git.kernel.org/stable/c/427ab81a811dab4bca9d19f82eec5847ae42646e
• https://git.kernel.org/stable/c/012d37a568bfbb2c9686f03ade75560bc7139956
• https://git.kernel.org/stable/c/30aae62e50b4e074a90a9a5e15246548fbdc1182
• https://git.kernel.org/stable/c/41fe0f7b84f0cb822ae10ab08592996a592b2a25

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