kernel: nfsd: initialize copy-notify stateid before publishing it

A flaw was found in the nfsd component of the Linux kernel. A use-after-free vulnerability exists due to improper initialization of the copy-notify state ID before its publication. A remote attacker could exploit this by sending a crafted OFFLOADCANCEL operation, leading to a race condition that...

kernel: vsock/virtio: bind uarg before filling zerocopy skb

A flaw was found in the Linux kernel's vsock/virtio transport. This vulnerability occurs when the system processes zerocopy socket buffers skbs and encounters an error during memory allocation for fixed-buffer vectored data. The system may attempt to free memory incorrectly, leading to a...

kernel: NFSD: Fix SECINFO_NO_NAME decode error cleanup

A flaw was found in the Linux kernel's Network File System Daemon NFSD. The nfsd4decodesecinfononame function does not properly initialize a pointer sinexp before processing an incoming data stream. If the data stream is malformed or truncated, the uninitialized pointer can retain stale data from...

kernel: igc: set tx buffer type for SMD frames

A flaw was found in the Linux kernel's igc network driver. The igcfpeinitsmdframe function, responsible for initializing transmit TX buffer fields for Stream-based Data SMD frames, does not correctly set the buffer type. This can result in stale XDP eXpress Data Path or XSK AFXDP socket types...

kernel: igc: set tx buffer type for SMD frames

A flaw was found in the Linux kernel's igc network driver. The igcfpeinitsmdframe function, responsible for initializing transmit TX buffer fields for Stream-based Data SMD frames, does not correctly set the buffer type. This can result in stale XDP eXpress Data Path or XSK AFXDP socket types...

kernel: nfsd: revoke copy-notify stateids before dropping their reference

A flaw was found in the Linux kernel's Network File System Daemon nfsd. This vulnerability arises from improper handling of "copy-notify stateids" during their revocation. When a stateid's reference is dropped without unlinking it, the memory can be freed while still in use by a reader, leading t...

kernel: nfsd: fix UAF in async copy cancel and shutdown

A flaw was found in the Linux kernel's nfsd component. A race condition exists during asynchronous copy cancellation and shutdown operations, which can lead to a Use-After-Free UAF vulnerability. This allows an async copy object to be freed or used after being freed, potentially causing memory...

kernel: vsock/virtio: bind uarg before filling zerocopy skb

A flaw was found in the Linux kernel's vsock/virtio transport. This vulnerability occurs when the system processes zerocopy socket buffers skbs and encounters an error during memory allocation for fixed-buffer vectored data. The system may attempt to free memory incorrectly, leading to a...

kernel: NFSD: Fix SECINFO_NO_NAME decode error cleanup

A flaw was found in the Linux kernel's Network File System Daemon NFSD. The nfsd4decodesecinfononame function does not properly initialize a pointer sinexp before processing an incoming data stream. If the data stream is malformed or truncated, the uninitialized pointer can retain stale data from...

kernel: nfsd: defer vfree of compound ops to fix rpc_status UAF

A flaw was found in the nfsd component of the Linux kernel. This vulnerability, a use-after-free, occurs when a specific memory buffer is prematurely released while another process is still trying to access it. This timing issue can lead to memory corruption. This could result in a system crash...

kernel: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem, specifically within the SEV Secure Encrypted Virtualization feature. A malicious guest operating system utilizing SEV-SNP Secure Nested Paging can exploit an out-of-bounds write vulnerability due to improper...

kernel: SUNRPC: pin upper rpc_clnt across the TLS connect_worker

A flaw was found in the Linux kernel's SUN Remote Procedure Call SUNRPC implementation. A use-after-free vulnerability exists in the Transport Layer Security TLS connection path. When a TLS handshake fails, the client resource can be prematurely freed, leading to a subsequent attempt to access th...

kernel: nfsd: fix stale s2s_cp_stateids IDR entry for async COPY

A flaw was found in the Linux kernel's Network File System Daemon nfsd component. When performing an asynchronous async copy operation, a programming error causes a stale identifier IDR entry to point to memory that has already been reused. This can lead to memory corruption, where the system...

kernel: udp: fix potential use-after-free in tunnel segmentation

A flaw was found in the Linux kernel's UDP User Datagram Protocol tunnel segmentation. This vulnerability arises when the system attempts to process network packets, specifically in the skbudptunnelsegment function. An attacker could potentially exploit a use-after-free condition, where the syste...

kernel: vsock/virtio: fix zerocopy completion for multi-skb sends

A flaw was found in the Linux kernel's vsock/virtio component. This vulnerability occurs during zerocopy completion for large messages fragmented into multiple socket kernel buffers skbs. An issue in how user arguments uargs are handled for these buffers can lead to pinned user pages not being...

nmap-farewell

nmap-farewell This tool aims to demonstrate the capabilities of the nfnetlinkqueue feature of the Linux kernel. For more in-depth information, you can read this article. Before packets are being dropped by the kernel, they are sent to this tool for further processing. If a remote peer tries to...

CVE-2025-39913

CVE-2025-39913 - Linux Kernel eBPF SOCKMAP UAF Author: Byte Reaper My platform :https://www.bytrep.com/ Description This repository contains a technical proof-of-concept for CVE-2025-39913, a vulnerability in the Linux kernel's tcpbpfsendverdict function. When bpfmsgcorkbytes fails to allocate...

PinTheft-go

pintheft-go Go port of pintheft - RDS zcopy double-free LPE. Member of the Dirty Frag vulnerability class. !IMPORTANT Arch Linux is one of the most exposed distributions for this vulnerability, as it is among the few where the RDS module can typically be loaded by default. How it works tl;dr The...

DirtyFrag-go

dirtyfrag-go Two bugs. One shell. No disk writes. Go port of dirtyfrag CVE-2026-43284 / CVE-2026-43500. How it works tl;dr The bug class is in the Linux kernel XFRM subsystem. When a file page is spliced into a pipe and then into an ESP-encrypted socket, the kernel decrypts the ESP payload in-pla...

CVE-2026-31431

🐞 CVE-2026-31431 - Copy Fail A logic flaw in authencesn chained through AFALG and splice into a controlled 4-byte write in the page cache of any readable file on the system. No race condition, no offsets, no compiled payload. The same 732-byte script gains root on every Linux distribution since...