cve 2026 23359

  1. CVE-2026-23359: Linux kernel BPF devmap stack overflow in XDP redirect

    The Linux kernel’s CVE-2026-23359 is a classic example of how a small-looking bounds mistake in BPF devmap code can turn into a real memory-safety problem. The issue sits in get_upper_ifindexes(), where the kernel walks every upper device and writes interface indices into an array without...
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    • bpf devmap cve 2026 23359 linux kernel xdp redirect
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