j1939 can

About this tag
The j1939 can tag on WindowsForum.com covers discussions about the J1939 protocol stack in the Linux kernel's Controller Area Network (CAN) subsystem. Content includes analysis of security vulnerabilities such as CVE-2026-22997, a reference-counting bug that causes session leaks and denial-of-service conditions in J1939 XTP transfers. This tag is relevant for embedded systems, automotive networks, and industrial applications where J1939 is used for vehicle diagnostics and communication. Topics may include kernel patches, session management, and CAN interface lifecycle issues. While the tag appears in a Windows-focused forum, the content specifically addresses Linux kernel and CAN bus topics.

  1. Linux J1939 XTP Session Leak CVE-2026-22997 Patch Alert

    A subtle reference-counting bug in the Linux kernel’s Controller Area Network (CAN) J1939 stack — tracked as CVE-2026-22997 — can lead to a persistent session leak and local denial-of-service conditions when the kernel receives a second RTS (Request To Send) for an active XTP transfer. The flaw...
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    • cve 2026 22997 j1939 can linux kernel virtual can
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    • Forum: Security Alerts