Linux Kernel Security Vulnerabilities

The Linux kernel version 5.8 contains a security vulnerability. This vulnerability stems from the bpfsock context code, which fails to ensure that the width of the read value is consistent with the assumptions of the verifier when reading the rxqueuemapping field. As a result, the values of runti...

Linux Kernel Security Vulnerabilities

Versions of the Linux kernel prior to 7.2.9 have a security vulnerability. This vulnerability arises from the BPF verifier failing to reject the transfer of the PTRTOPACKET pointer to procedures that may modify data packets, potentially causing the data packet memory area to become invalid...

CVE-2026-46331-pedit-cow

CVE-2026-46331-pedit-cow Write-up and exploitation steps for the pedit COW vulnerability CVE-2026-46331. Overview This challenge demonstrates pedit COW, a Linux kernel flaw in the traffic-control subsystem's packet-editing action actpedit. The vulnerability allows an unprivileged user to overwrit...

reproducer-poc-CVE-2022-0847

Naive detector and reproducer of CVE-2022-0847 dirty pipe. Uses simple generator of syscall sequences / programs from purposefully limited set of building blocks / input values only generation, no advanced fuzzing; no mutation; no coverage guidance; no shrinking / minimization and detects...

CVE-2022-1015

CVE-2022-1015 id uid=1000d gid=1000d groups=1000d ./poc + unshare done table created: leaktable chain created: leakchain rule added Listening on port 9999 table created: leaktable chain created: leakchain rule added Listening on port 9999 kerneladdress: ffffffffb4a00000 kernelstack:...

CVE-2019-2215

CVE-2019-2215 Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1942 https://bugs.chromium.org/p/project-zero/issues/attachmentText?aid=414885 Samsung S7 and S7 Edge with Kernel 3.18.x seem not vulnerable could be however, with more work with PoC adjustments. Could not see more,...

linux-4.19.72_CVE-2020-29370

Linux kernel There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use make htmldocs or make pdfdocs. The formatted documentatio...

CVE-2025-40019-Essiv

CVE-2025-40019-Essiv A PoC for CVE-2025-40019 in ESSIV module. exploit WIP for exploitation, note that scatterlist both req-src and req-dst has pagelink member. pagelink is a way to encode sg table info alongside page pointer as far as I understand: gdb ptype struct scatterlist type = struct...

CVE-2021-3493

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Versions Ubuntu 20.10 Ubuntu 20.04 LTS Ubuntu 19.04 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 ESM Usage gcc exploit.c -o exploit ./exploit Description "Ubuntu specific issue in the overlayfs file system in the Linux kernel where it did no...

Exploit for CVE-2026-99999

cve-2026-99999-audit !CVEhttps://img.shields.io/badge/CVE-...

Dirty-Pipe-Exploit

Dirty-Pipe-Exploit The Dirty Pipe exploit CVE-2022-0847 is a Linux kernel vulnerability v5.8+ allowing unprivileged attackers to overwrite arbitrary files via a flaw in the pipe mechanism. This leads to privilege escalation, granting root access. Similar to Dirty Cow but easier to exploit. Fix:...

CVE-2019-7489

This repository does not have a README...

Reproduce-CVE-2023-52927

Reproduce-CVE-2023-52927 Target kCTF cos-109-17800.436.33 machine: Kernel image bzImage: https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/bzImage Kernel image vmlinux: https://storage.googleapis.com/kernelctf-build/releases/cos-109-17800.436.33/vmlinux.gz Kernel config...

CVE-2025-38676

CVE-2025-38676 — Linux Kernel ≤ 6.17-rc2 AMD IOMMU stack buffer overflow This repo provides safe, non-exploit PoC resources to study CVE-2025-38676: Info-gathering + safety tools QEMU boot harness to exercise long kernel cmdline permutations Hardening guidance GRUB/UEFI/Secure Boot; baseline...

CVE-2023-32233

Building And Configuring The instructions below were tested under Ubuntu 23.04 Lunar Lobster. Installing Build Dependencies Run the following command to install the build dependencies: sudo apt install gcc libmnl-dev libnftnl-dev Building Binary Run the following command to build the PoC binary:...

2022-LPE-UAF

2022-LPE-UAF Untested POC code Security researchers discovered 3 vulnerabilities in the Linux kernel that could allow a local attacker to elevate privileges and potentially execute malicious code. The proof-of-concept code is publicly available increasing the likelihood of exploitation in the wil...

CVE-2014-0196

CVE-2014-0196 The nttywrite function in drivers/tty/ntty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service memory corruption and system crash or gain privileges by triggering a race...

CVE-2026-81000

⚡ CVE-2026-81000 - TUNderflow Linux Kernel TUN/TAP Receive Headroom Memory Corruption A Linux kernel memory-corruption vulnerability in the TUN/TAP networking subsystem , caused by insufficient bounds on receive headroom and an integer underflow in the packet allocation path. ⚠️ Disclaimer This...

CVE-2024-27398

CVE-2024-27398 CVE-2024-27398 POC 📍 GDB Breakpoints GNU gdb Ubuntu 12.1-0ubuntu122.04.2 12.1 Copyright C 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted ...

CVE-2024-1086

CVE-2024-1086 Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KernelCTF. The success rate is 99.4% in KernelCTF images...