bpf verifier

  1. CVE-2026-43321: Linux BPF Verifier Register Liveness Bug (CVSS 7.8)

    CVE-2026-43321 is a newly published Linux kernel vulnerability in the BPF verifier, disclosed through kernel.org and surfaced in Microsoft’s Security Update Guide on May 8, 2026, with a high CVSS 3.1 score of 7.8 and local, low-complexity exploitation characteristics. The bug is small in code...
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    • bpf verifier cve 2026 43321 linux kernel local privilege escalation
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  2. Linux Kernel BPF Verifier Patch Fix for bpf_sock_addr Padding

    The Linux kernel received a surgical but important fix for a subtle BPF verifier bug that could cause verifier failures and kernel warnings when eBPF programs accessed an implicit padding field inside the bpf_sock_addr context; the upstream patch explicitly tightens validation in...
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    • bpf verifier cve 2025 40078 linux kernel security patch
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    • Forum: Security Alerts