kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx()

A flaw was found in the Linux kernel. A race condition exists in the xfrm policy handling, specifically within the xfrmpolicybyselctx function. This flaw allows for a use-after-free vulnerability, where memory is accessed after it has been released. This can lead to system instability or a denial...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. 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...

kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability arises when asynchronous cryptographic operations incorrectly handle network packet segments, leaving a pointer to memory that has already been released. An attacker could potentially exploit this use-after-free condition t...

kernel: xfrm: hold dev ref until after transport_finish NF_HOOK

A flaw was found in the Linux kernel's xfrm IP eXtensible FRamework subsystem. This vulnerability involves a race condition where a network device's reference is released too early during packet processing after asynchronous cryptography. This premature release can lead to the system attempting t...

kernel: xfrm: input: hold netns during deferred transport reinjection

A flaw was found in the Linux kernel's xfrm input component. The transport-mode reinjection process, which handles network packet re-injection, stores a network namespace pointer that must remain valid until a deferred callback completes. However, a missing reference count for the network namespa...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3192)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3192 advisory. An issue in the Linux kernel's virtio-net/TAP networking path could allow an actor with privileged access inside a guest virtual machine to send specially crafted network packets that corrupt...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3187)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-3187 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions CVE-2026-63858 In the Linux kernel, the following...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions CVE-2026-63858 In the Linux kernel, the following vulnerability has been resolved: net: serialize netifrunning check in enqueuetobacklog CVE-2026-724...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: sctp: fix errchunk memory leaks in INIT handling CVE-2026-72413 In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix dev use-after-free in xfrm async resumption CVE-2026-72463 In the Linux...

CVE-2017-7184

CVE-2017-7184 – Linux Kernel XFRM Privilege Escalation No Sudo Overview This repository contains a proof-of-concept local privilege escalation exploit for CVE-2017-7184 , a Linux kernel vulnerability in the XFRM IPsec netlink subsystem. The exploit demonstrates how an unprivileged user can gain...

CVE-2026-98241

A flaw was found in the Linux kernel's IPv6 IPsec XFRM networking framework. When handling TCP connection handshakes routed through an IPsec tunnel with a reduced Maximum Transmission Unit MTU, the kernel's local error-handling path incorrectly treats incomplete connection request sockets as full...

CVE-2026-98230

A flaw was found in the Linux kernel's IPsec xfrm subsystem. A local attacker can trigger repeated state deletion during cleanup, leading to a use-after-free condition where the kernel attempts to access memory that has already been released. This vulnerability may allow an attacker to achieve...

CVE-2026-98231

A flaw was found in the Linux kernel's IPsec XFRM subsystem. A race condition between device state flushing and background memory cleanup allows kernel memory to be accessed after it has already been freed. A local attacker could exploit this flaw during network device state changes to cause a...

CVE-2026-98229

A flaw was found in the Linux kernel's XFRM IPsec subsystem. During incoming packet processing, certain network receive paths can reset security context information before the system finishes handling the IPsec state. If that state is concurrently deleted, the kernel can dereference freed memory,...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabilit...

CVE-2026-98372

A flaw was found in the Linux kernel's IP Traffic Flow Security IP-TFS implementation within the XFRM subsystem. When processing incoming network traffic, a missing boundary check on packet fragment offsets allows an unbounded loop to read memory past the end of an on-stack array. A remote attack...

CVE-2026-98369

A flaw was found in the Linux kernel's IPsec xfrm subsystem. This flaw can lead to a Denial of Service DoS due to missing synchronization locks and device references when reinjecting transport-mode network packets through workqueues. A remote attacker could exploit this vulnerability by sending...

CVE-2026-98364

A flaw was found in the Linux kernel's IPsec XFRM networking subsystem. A race condition occurs when creating policy bundles while a network device is concurrently removed, leading to a use-after-free condition where the kernel accesses already-freed device memory. A local attacker can exploit th...

Linux Distros Unpatched Vulnerability : CVE-2026-98372

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - xfrm: iptfs: fix stack OOB read in iptfsskbresetfragwalk iptfsskbresetfragwalk advances to the fragment containing @offset with an unbounded loop: while offset ...

CVE-2026-80843

A flaw was found in the Linux kernel's xfrm IPSec framework component. This vulnerability occurs when the xfrmstateconstruct function incorrectly manages memory allocations for authentication algorithms. Specifically, it can overwrite an existing allocation, leading to a memory leak. Over time,...