linux bpf

  1. CVE-2026-31525: Linux BPF Signed Division Bug Causing Verifier/Interpreter Mismatch

    The Linux kernel’s BPF interpreter has a newly disclosed flaw, tracked as CVE-2026-31525, that exposes a subtle but important mismatch between the interpreter and the verifier when handling signed 32-bit division and modulo on INT_MIN. The bug is not a dramatic memory corruption primitive on its...
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    • cve-2026-31525 kernel security linux bpf verifier mismatch
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  2. CVE-2026-23383: Linux arm64 BPF JIT 8-Byte Alignment Fix Against Atomic Tearing

    The CVE in question, CVE-2026-23383, concerns the Linux bpf subsystem on arm64, where Microsoft’s advisory describes a fix to “force 8-byte alignment for JIT buffer to prevent atomic tearing.” That is a very small change on the surface, but it addresses a class of bugs that can be surprisingly...
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    • arm64 security cve 2026 kernel hardening linux bpf
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    • Forum: Security Alerts