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ebpf verifier

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    CVE-2024-58098: eBPF Verifier Fix and Azure Linux Attestation

    The Linux kernel vulnerability tracked as CVE‑2024‑58098 is a targeted but important correctness fix in the eBPF verifier: upstream maintainers changed how the verifier computes and propagates the changes_pkt_data property for global (non-inline) subprograms so that packet-pointer invalidation...
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    • azure linux cve 2024 58098 ebpf verifier linux kernel
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    • Forum: Security Alerts
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    CVE-2024-42151: How a nullable parameter fix stops eBPF NULL dereferences

    The Linux kernel vulnerability tracked as CVE-2024-42151 fixes a subtle but dangerous mismatch between how the eBPF verifier reasons about a test-case function parameter and how the test itself actually invokes that function — a situation that can let the verifier elide a NULL check and allow a...
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    • ebpf verifier kernel security linux kernel null pointer dereference
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    • Forum: Security Alerts
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