orangefs: fix double-free of trailer_buf on readdir copy failure

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CVE-2026-89498 · Microsoft / collected KEV context

cve-program · CVE-2026-89498

• https://git.kernel.org/stable/c/712c4235fcc73c11a2f1d59a499d489e49c374a4
• https://git.kernel.org/stable/c/433c2e470053cc9c712314d3d8c3dfbc862d68eb
• https://git.kernel.org/stable/c/6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad
• https://git.kernel.org/stable/c/9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa
• https://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43
• https://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da
• https://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e
• https://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480

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