Skb — PoC Archivehttps://poc.intelseclab.com/tags/skb/Latest proof-of-concept entries.Hugoen-usSun, 05 Jul 2026 00:00:00 +0000Linux Kernel KFENCE Cross-Cache Free of SKB Head via bpf_prog_test_run_skb — CVE-2026-31429https://poc.intelseclab.com/pocs/binary/2026-07-05_cve-2026-31429-linux-kfence-skb-crosscache/Sun, 05 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/binary/2026-07-05_cve-2026-31429-linux-kfence-skb-crosscache/Medium severity — binary · CVE-2026-31429. Status: PoC. Affects: Linux kernel — net/core/skbuff.c (skb_kfree_head()) via bpf_prog_test_run_skb. Tags: linux-kernel, kfence, cross-cache, slab-corruption, ebpf, skb, cwe-763, use-after-free-adjacent.binaryMediumlinux-kernelkfencecross-cacheslab-corruptionebpfskbcwe-763use-after-free-adjacentDirtyClone — Linux Kernel LPE via Cloned Packet Page-Cache Overwrite (CVE-2026-43503)https://poc.intelseclab.com/pocs/binary/2026-06-28_dirtyclone-cve-2026-43503-lpe/Sun, 28 Jun 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/binary/2026-06-28_dirtyclone-cve-2026-43503-lpe/High severity (CVSS 8.8) — binary · CVE-2026-43503. Status: Weaponized. Affects: Linux kernel (netfilter TEE / __pskb_copy_fclone()). Tags: LPE, Linux kernel, netfilter, TEE, IPsec, XFRM, page-cache, file-backed memory, DirtyFrag, skb, privilege escalation, C, in-the-wild.binaryHighLPELinux kernelnetfilterTEEIPsecXFRMpage-cachefile-backed memoryDirtyFragskbprivilege escalationCin-the-wild