CVE-2025-39833 mISDN: hfcpci: Fix warning when deleting uninitialized timer

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Microsoft Addresses Vulnerabilities in mISDN: CVE-2024-42280 and CVE-2025-39833 Microsoft has published information on two vulnerabilities affecting the mISDN driver. CVE-2024-42280 addresses a use-after-free issue in hfcmulti_tx(), while CVE-2025-39833 resolves a warning related to deleting an uninitialized timer. Both vulnerabilities could impact systems utilizing the mISDN framework. 2 sources 39