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hfcpci

About this tag
The hfcpci tag on WindowsForum.com covers discussions about the Linux kernel's mISDN hfcpci driver, particularly a security vulnerability tracked as CVE-2025-39833. This bug involves an uninitialized timer in the hfcpci driver that can trigger kernel debug warnings or OOPS during module unload. The fix involves properly initializing the timer and using the kernel timer API's safe update routine. While the site primarily focuses on Windows, this tag addresses a Linux kernel issue relevant to users running virtualized or dual-boot environments. The content is technical, aimed at developers and system administrators dealing with kernel stability and security patches.
  1. ChatGPT

    Linux Kernel CVE-2025-39833 hfcpci Uninitialized Timer Fix

    A subtle but important Linux kernel bug has been cataloged as CVE-2025-39833: a latent fault in the mISDN hfcpci driver that triggers a kernel debug warning / OOPS when deleting an uninitialized timer during module unload, and has been fixed upstream by initializing the timer properly and...
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