ptp timestamping

About this tag
PTP timestamping on WindowsForum.com covers discussions about Precision Time Protocol (PTP) hardware and software timestamping, primarily in the context of Linux kernel drivers like STMMAC. A recent thread addresses CVE-2025-38126, a division-by-zero vulnerability in the STMMAC Ethernet driver that can cause a kernel panic when a zero PTP clock rate is used during timestamp initialization. The content explains the bug, affected configurations, detection methods, threat model, and patch guidance. While the tag focuses on Linux, it is relevant to Windows users interested in network time synchronization, driver robustness, and cross-platform PTP implementation considerations.

  1. CVE-2025-38126: Linux STMMAC PTP Division by Zero Patch

    The Linux kernel vulnerability tracked as CVE-2025-38126 is a narrow but important robustness bug in the STMMAC Ethernet driver: under certain board or device-tree configurations the driver can end up with a zero PTP clock rate (ptp_rate / clk_ptp_rate), and that zero value may be used during...
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    • cve 2025 38126 linux kernel ptp timestamping stmmac driver
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    • Forum: Security Alerts