calipso: Fix null-ptr-deref in calipso_req_{set,del}attr().

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CVE-2025-38181 · Microsoft / collected KEV context

cve-program · CVE-2025-38181

• https://git.kernel.org/stable/c/956f1499412ed0953f6a116df7fdb855e9f1fc66
• https://git.kernel.org/stable/c/f4ae0f61dd9a63329ecb49b1e6356139d43240b8
• https://git.kernel.org/stable/c/dc724bd34d56f5589f7587a091a8cda2386826c4
• https://git.kernel.org/stable/c/058dd4a370f23a5553a9449f2db53d5bfa88d45e
• https://git.kernel.org/stable/c/bde8833eb075ba8e8674de88e32de6b669966451
• https://git.kernel.org/stable/c/988edde4d52d5c02ea4dd95d7619372a5e2fb7b7
• https://git.kernel.org/stable/c/d092c7fd8e220b23d6c47e03d7d0cc79e731f379
• https://git.kernel.org/stable/c/10876da918fa1aec0227fb4c67647513447f53a9

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