grlh

disable ebpf verifier with this one weird trick as seen on twitter.com https://twitter.com/bleidl/status/871527499984982016...

CVE-2026-7878-eBPF-Verifier-Type-Confusion-Kernel-Memory-Read-Write

6. CVE-2026-7878 – eBPF Verifier Type Confusion → Kernel Memory Read/Write Overview A subtle integer overflow in the eBPF verifier’s bounds tracking allows an attacker to craft an eBPF program that accesses out‑of‑bounds kernel memory. Severity: Critical Kernel Privilege Escalation User‑mode eBPF...

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, with vulnerability ID CVE-2017-16995...

CVE-2022-23222

CVE-2022-23222 Click here if you just wanna build and run the dang thing. What follows is more or less a translation of the Chinese writeup, available here. We'll use the mainline kernel code for version 5.13.0 as a reference. There is a mismatch in available pointer types and the function that...

CVE-2017-16995

Linux Kernel Version 4.14 - 4.4 Ubuntu && Debian Descripción Esta vulnerabilidad existe en la llamada al sistema eBPF bpf2 del kernel de Linux. Cuando un usuario proporciona un programa BPF malicioso, provoca errores de cálculo en el módulo validador de eBPF, lo que resulta en problemas de...

cve-2021-3490-ebpf-analysis

cve-2021-3490-ebpf-analysis Research implementation demonstrating interaction with Linux eBPF subsystem related to CVE-2021-3490. Includes BPF map creation, syscall wrappers, namespace setup, and verifier analysis. For educational and security research purposes only. CVE-2021-3490 – eBPF Verifier...

CVE-2017-16995

The latest version of Ubuntu Ubuntu 16.04 has a high-risk local privilege escalation vulnerability, numbered CVE-2017-16995. This vulnerability exists in the Linux kernel system that calls eBPF bpf2. When a user provides a malicious BPF program, the eBPF verifier module generates a calculation...

aeBPF2-analysis

aeBPF2, eBPF verifier scalar-ID pruning vulnerability 한국어 문서...

CVE-2026-53671

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the abstract transformer in prevail treats writes through a TCTX-typed base register as a silent no-op: domemstore in src/crab/ebpftransformer.cpp only models TSTACK stores, and the...

CVE-2026-53670

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53706

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

EUVD-2026-70245

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706 PREVAIL: ALU32 pointer arithmetic accepted without is64 gate — verifier emits false PASS for pointer-corrupting programs

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, the prevail eBPF verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag. Because ALU32 arithmetic zero-extends the 32-bit...

CVE-2026-53706

PREVAIL is a Polynomial-Runtime eBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4 , the verifier accepts ALU32 ADD and SUB instructions that operate on pointer-typed registers without checking the is64 flag . Because ALU32 arithmetic zero-extends the 32-bit result, the ...

CVE-2026-53670 PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53670 PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53670 PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification

PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add silently skips offset-variable updates when the destination register carries a non-singleton typeset two or more simultaneously possible...

CVE-2026-53670

PREVAIL , a polynomial-runtime eBPF verifier using an abstract interpretation layer, is vulnerable to a verifier bypass prior to version 0.2.4 . In the EbpfTransformer::add() function, offset-variable updates are silently skipped when the destination register carries a non-singleton typeset (two ...