CVE-2021-3490

The eBPF ALU32 bounds tracking for bitwise ops AND, OR and XOR in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. Compile: gcc -o pwn pwn.c && gcc -o exploit exploit.c...

CVE-2026-31431-Advanced-Exploit

CVE-2026-31431 — Copy Fail Linux Kernel Page Cache Out-of-Bounds Write Vulnerability AFALG AEAD Scatterlist Chain Error Overview The Linux kernel algifaead interface contains a vulnerability that allows unprivileged users to write arbitrary data to the page cache of any readable file — completely...

CVE-2026-31431

CVE-2026-31431 Vulnerability Overview CVE ID：CVE-2026-31431 Alias：Copy Fail Severity：High CVSS v3 Score 7.8 Vulnerability Type：Local Privilege Escalation LPE Affected Component：The algifaead module AFALG cryptographic interface of the Linux kernel Prerequisites：The attacker only needs a normal us...

CVE-2022-0847-DirtyPipe-Exploit

A vulnerability was found in Linux Kernel up to 5.10.101/5.15.24/5.16.10 Operating System and classified as critical. This issue affects some unknown processing of the component Pipe Handler. Impacted is confidentiality, integrity, and availability. The weakness was presented 03/08/2022. The...

l2tp-socket-bug

CVE-2014-4943 The PPPoL2TP feature in net/l2tp/l2tpppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket. CVSS v2 Base Score: 6.9 MEDIUM...

CVE-2026-31431-mitigacion

CVE-2026-31431 — Complete Technical Analysis Classification: Local Privilege Escalation LPE — Linux Kernel CVSS: 7.8 High Impact: unprivileged user → root Affected module: algifaead AFALG kernel subsystem Table of Contents 1. Why is it vulnerable? 2. Which versions are affected? 3. How it is...

CVE-2026-31431-Metasploit-exploit

CVE-2026-31431 - Linux Kernel AFALG "Copy Fail" Local Privilege Escalation An automated Metasploit Post-Exploitation module that leverages CVE-2026-31431 popularly known as "Copy Fail" to perform Local Privilege Escalation LPE on vulnerable Linux kernels versions 4.14 through 6.19.12. Description...

pedit-cow

CVE-2026-46331 is a Linux kernel privilege escalation vulnerability involving the traffic control subsystem and page cache corruption. Requirements: Linux x8664 GCC iproute2 tc Vulnerable kernel Exploitation Flow: SUID Enumeration ↓ Target Selection ↓ ELF Analysis ↓ tc / Netlink / pedit ↓ Page...

CVE-2026-31431-Copy-Fail

CVE-2026-31431 - Verification and Mitigation Script This repository documents a Bash script used to assess exposure to CVE-2026-31431 on Linux hosts, with a focus on Ubuntu, and to apply a simple mitigation by blocking the algifaead module. Language versions: English: README.md Portuguese:...

CVE-2016-5195

This record is for learning purposes only; any illegal use is prohibited. Principle The vulnerability works by concurrently flushing dirty pages, causing the content of a file that was originally read-only to be modified. If the modified file is owned by root and has the SUID permission, it can b...

kernel: USB: serial: mxuport: fix memory corruption with small endpoint

A flaw was found in the Linux kernel's USB serial mxuport driver. A malicious Universal Serial Bus USB device could exploit this vulnerability by reporting a bulk-out endpoint maximum packet size smaller than eight bytes. This can lead to user-controlled slab corruption, potentially allowing an...

kernel: ipv4: raw: reject IP_HDRINCL packets with ihl < 5

A flaw was found in the Linux kernel's handling of IPv4 raw sockets. An unprivileged attacker with CAPNETRAW capabilities can craft and inject a malformed IPv4 packet with an invalid Internet Header Length IHL. This can lead to an out-of-bounds memory access when the packet is processed by certai...

kernel: ipv4: validate checksum_start before completing checksum

A flaw was found in the Linux kernel. A local attacker or untrusted guest virtual machine can exploit this vulnerability by transmitting network packets containing malformed checksum metadata into the IPv4 networking subsystem. This failure to validate checksum metadata can corrupt memory during...

kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2()

A flaw was found in the Linux kernel's Server Message Block SMB client. The coalescet2 function processes server-supplied DataOffset fields without proper validation against buffer boundaries. A remote attacker could exploit this by crafting malicious SMB responses. This could lead to out-of-boun...

kernel: exec: Cleanup POSIX timers right after de_thread()

A flaw was found in the Linux kernel. When a multi-threaded program sets up a per-thread timer and executes a new program that subsequently fails during startup, the kernel can free timer memory while it remains referenced in an active queue. A local user could exploit this vulnerability to trigg...

kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port

A flaw was found in the Linux kernel's bridge multicast functionality. Improper management of multicast contexts when a bridge port is removed can lead to a use-after-free vulnerability. This issue could allow a local attacker to cause a system crash, resulting in a denial of service...

kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes()

A flaw was found in the Linux kernel's USB Type-C Port Manager TCPM driver. A remote attacker, acting as a malicious USB-C port partner, could exploit an out-of-bounds write vulnerability in the svdmconsumemodes function. By sending an unsolicited 'Discover Modes ACK' with excessive data, the...

kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close

A flaw was found in the Bluetooth hcisync component of the Linux kernel. When the hcidevclosesync function is called during a device reset, the system may experience queuing timeouts. This occurs because the HCICMDDRAINWORKQUEUE flag is not properly set, which can lead to system instability or a...

kernel: inet: frags: strip GSO state from fragments before reassembly

A flaw was found in the Linux kernel's network fragment reassembly process. An unprivileged local user, or a guest in a virtualized environment, could craft specially formed IPv4 or IPv6 network fragments that incorrectly retain Generic Segmentation Offload GSO state after reassembly. This...

kernel: perf: Fix addr_filter_ranges lifetime

A flaw was found in the Linux kernel's performance events perf subsystem. This vulnerability occurs because memory allocated for event address filters is released prematurely while still in active use by other kernel processes. A local user could exploit this use-after-free flaw during performanc...