xdp security

About this tag
The xdp security tag covers Linux kernel networking vulnerabilities related to the eXpress Data Path (XDP) subsystem, specifically in Intel ice and Broadcom bnxt Ethernet drivers. Topics include CVE-2026-23377, where incorrect XDP fragment sizing in the ice driver could lead to memory-safety hazards, and CVE-2025-21682, a bnxt driver bug causing kernel crashes during XDP program reconfiguration. These issues highlight how driver-level XDP bugs can affect system stability and security, with patches appearing in Microsoft's Security Update Guide. The tag is relevant for enterprise IT professionals managing high-performance packet processing on Windows or Linux systems.

  1. CVE-2026-23377: Fixing ice Driver XDP Frag Size from xdp.frame_sz

    CVE-2026-23377 is a Linux kernel networking issue in Intel’s ice driver, and the patch title itself gives away the core of the problem: the XDP receive queue’s fragment size was being derived from the DMA write length instead of the actual xdp.frame_sz. That sounds small, but in high-performance...
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    • cve 2026-23377 intel ice driver linux kernel networking xdp security
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    • Forum: Security Alerts

  2. CVE-2025-21682: bnxt XDP bug causes kernel crash on reconfiguration

    A subtle driver-state bug in Broadcom’s bnxt Ethernet driver has been assigned CVE-2025-21682 after maintainers fixed a race and a NULL-pointer dereference that can lead to kernel crashes when XDP programs are detached and subsequent reconfiguration occurs. Systems that attach and remove XDP...
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    • bnxt driver kernel vulnerability linux kernel xdp security
    • Replies: 0
    • Forum: Security Alerts