Ebpf Verifier on CyberSecurity Elitehttps://cybersecurityelite.com/tags/ebpf-verifier/Recent content in Ebpf Verifier on CyberSecurity EliteCyberSecurity Elitehttps://cybersecurityelite.com/images/og-default.pnghttps://cybersecurityelite.com/images/og-default.pngHugoen-usMon, 08 Jun 2026 18:55:51 +0200GPN CTF 2026 — Stupidcontract: Patched eBPF Verifier + Signed-Cmp OOBhttps://cybersecurityelite.com/ctf-writeups/gpn-ctf-2026-stupidcontract/Sun, 07 Jun 2026 18:30:00 +0000https://cybersecurityelite.com/ctf-writeups/gpn-ctf-2026-stupidcontract/GPN CTF 2026 Reverse: a custom kernel strips BPF verifier bounds checks. A signed-comparison eBPF program writes outside the map, clobbers SUCCESS[0], and lights the flag path.