can j1939

About this tag
The tag 'can j1939' on WindowsForum.com covers discussions about the CAN J1939 protocol stack, primarily in the context of Linux kernel security and enterprise IT. Recent content focuses on CVE-2025-39925, a race condition and reference-counting bug in the Linux CAN J1939 subsystem that could block network device unregistration. The vulnerability affects virtual CAN devices like vcan0. Microsoft's Security Response Center has confirmed that Azure Linux includes the affected component, with potential implications for other Microsoft products. The tag is relevant for IT professionals and developers working with CAN bus systems, Linux kernel security, and Azure infrastructure, highlighting the intersection of automotive networking protocols and enterprise cloud security.

  1. CVE-2025-39925: Linux CAN J1939 race fix and Azure Linux attestation

    The Linux kernel fix tracked as CVE‑2025‑39925 addresses a race/reference-counting bug in the CAN J1939 protocol stack: the subsystem lacked a NETDEV_UNREGISTER notification handler to undo an extra reference held by j1939_sk_bind, which could leave a virtual CAN device (for example vcan0) stuck...
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    • azure linux can j1939 cve 2025 39925 linux kernel
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    • Forum: Security Alerts