libpcap

LIBPCAP 1.x.y by The Tcpdump Group To report a security issue please send an e-mail to [email protected]. To report bugs and other problems, contribute patches, request a feature, provide generic feedback etc please see the guidelines for contributing. The documentation directory has README...

Important: Red Hat Security Advisory: oci-seccomp-bpf-hook security update

An update for oci-seccomp-bpf-hook is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...

CVE-2021-33624

Proof of Concept for CVE-2021-33624 compile with gcc -pthread -o bpfspectretypeconfusion bpfspectretypeconfusion.c -Wall -ggdb -std=gnu99 execute with sudo ./bpfspectretypeconfusion 1 2 ffffffffa4925620 0x10 where 1 and 2 are CPU threads which run on two distinct hardware cores, ffffffffa4925620 ...

kafel

WHAT IS IT? Kafel is a language and library for specifying syscall filtering policies. The policies are compiled into BPF code that can be used with seccomp-filter. This is NOT an official Google product. Usage With verbose error reporting struct sockfprog prog; kafelctxtt ctxt = kafelctxtcreate;...

CVE-2021-3490-POC

CVE-2021-3490 Credits to https://github.com/chompie1337 Steps to Reproduce Install the ubuntu-20.04.6-live-server-amd64.iso from Ubuntu Releases, and install into the virtual machine. wget https://releases.ubuntu.com/20.04/ubuntu-20.04.6-live-server-amd64.iso After installing ISO, fully install t...

block-copyfail

block-copyfail Proof of concept runtime mitigation for CVE-2026-31431 "Copy Fail" — a Linux kernel privilege escalation via the authencesn cryptographic template in algifaead. Unlike module blacklisting, this requires no reboot. A BPF LSM program hooks socketbind and blocks all AFALG AEAD binds —...

CVE-2017-16995

CVE-2017-16995 A record of my own tinkering with the CVE-2017-16995 vulnerability and related analysis Hopefully I can find one myself, lol Overview This vulnerability is an LPE caused by an error in the verifier's branch judgment during BPF virtual execution In essence, it is an integer extensio...

KSMBD-CVE-2025-37947

CVE-2025-37947 PoC for ksmbd For more information, see the article here. Files bpf-tracer.sh - BPF msgmsg tracer CVE-2025-37947.c - exploit for CVE-2025-37947 proof-of-concept.c - minimal trigger that causes the OOB write ksmbd.conf - ksmbd config Makefile - builds exploit run-qemu.sh -...

ScreenOff

ScreenOff CVE-2026-52910 kernel crash poc. ref: https://github.com/5unkn0wn/security-research/tree/CVE-2026-52910ltscosmitigation what socket + SOATTACHREUSEPORTCBPF + setsockopt race. timerfd/epoll callback storm slows down the receive path. replace the cBPF filter while the old prog is still in...

CVE-2017-16995

Vulnerability Description Ubuntu is an open-source GNU/Linux operating system primarily used on desktops, based on Debian GNU/Linux. Recently, a white-hat hacker disclosed a local privilege escalation vulnerability in the latest version of Ubuntu Ubuntu 16.04, assigned CVE-2017-16995. This...

copy-fail-blocker

copy-fail-blocker BPF-LSM mitigation for CVE-2026-31431 "Copy Fail" and the RxRPC variant of Dirty Frag, and for similar privilege-escalation vulnerabilities that depend on userspace access to a kernel-side in-place crypto path reachable via the AFALG or AFRXRPC socket families. A small DaemonSet...

firejail

Firejail Firejail is a lightweight security tool intended to protect a Linux system by setting up a restricted environment for running potentially untrusted applications. More specifically, it is an SUID sandbox program that reduces the risk of security breaches by using Linux namespaces,...

gobee

gobee Write your BPF programs in Go, not C. gobee transpiles a strict subset of Go into BPF C, generates typed Go bindings for the userspace side, and gates loads against the running kernel. The Go ecosystem has solid userspace tooling for BPF. The kernel side has always ended with "now write you...

deny-af-alg-bpf

deny-af-alg-bpf Description BPF LSM program that blocks AFALG Linux kernel crypto API socket creation and logs all attempts via a ring buffer to userspace. What it does Attaches to the lsm/socketcreate hook Denies any socketAFALG, ... call with -EPERM Emits structured events pid, comm to a BPF ri...

filterforge

filterforge Python toolkit for reverse-engineering Berkeley Packet Filter BPF bytecode. Given raw BPF instructions — the kind you might extract from a malware sample, a packet capture filter, or a network appliance — filterforge disassembles them into human-readable form, uses Z3 to solve for the...

IPCDump

ipcdump Announcement post ipcdump is a tool for tracing interprocess communication IPC on Linux. It covers most of the common IPC mechanisms -- pipes, fifos, signals, unix sockets, loopback-based networking, and pseudoterminals. It's a useful tool for debugging multi-process applications, and it'...

INF8602-CVE-2020-8835

INF8602-CVE-2020-8835 Testing the kernel exploit 1. Testing without Docker cd ../app npm i node server.js 2. Testing with Docker to test defensive capability Make sure to be in the same directory as the Dockerfile Build the Docker image docker build . -t inf8602/node-web-app Your docker image...

CVE-2017-16995

CVE-2017-16995 CVE ID: CVE-2017-16995 Publish date: 2017-12-27T17:08:17.670 Base score CVSS 3.0/3.1: 7.8 Description: The checkaluop function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service memory corruption or possibly have unspecified oth...

Ubuntu-0day

Ubuntu16.04-0day Vulnerability scope: all 4.4 ubuntu aws instances are vulnerable Jann Horn discovered that in some cases, the Berkeley Packet Filter BPF in the Linux kernel incorrectly performed sign extension in checkaluop. A local attacker can use this to escalate privileges on the system and...

jailer

Jailer - eBPF Mandatory Access Control Warning : This project is under heavy development and is NOT ready for production use. APIs, policy formats, and behavior may change without notice. Use for testing and experimentation only. Acknowledgments Note : This is an independent implementation and is...