CVE-2026-43284

Dirty Frag: 汎用Linux LPE 概要 本書では、Hyunwoo Kim @v4bel によって発見・報告された Dirty Frag 脆弱性クラスについて説明します。xfrm-ESP Page-Cache Write CVE-2026-43284 と RxRPC Page-Cache Write CVE-2026-43500 を連鎖させることで、攻撃者は主要な Linux ディストリビューション上で root に昇格できます。 Dirty Frag は Dirty Pipe や Copy Fail...

CVE-2026-53266

CVE-2026-53266 — Linux ebtables SNAT ARP-rewrite page-cache write tracking site Source for the CVE-2026-53266 patch-status tracker: a single-page site recording which distributions have shipped a fix for the netfilter bridge ebtables SNAT ARP-rewrite page-cache write in the Linux kernel CISA KEV...

DirtyFrag

Dirty-Frag Linux CVE-2026-43284 & CVE-2026-43500 Copiado de @V4bel : Gracias : Este documento describe la clase de vulnerabilidad Dirty Frag, descubierta y reportada por primera vez por Hyunwoo Kim @v4bel, que puede obtener privilegios de root en las principales distribuciones de Linux encadenand...

Exploit for Write-what-where Condition in Linux Linux_Kernel

CVE-2026-43284-DIRTY-FRAG- Detailed technical analysis of CVE-...

K000163363: Linux kernel vulnerability CVE-2026-43503

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: net: skbuff: propagate shared-frag marker through frag-transfer helpers Two frag-transfer helpers pskbcopyfclone and skbshift fail to propagate the SKBFLSHAREDFRAG bit in skbshinfo-flags when moving...

Exploit for Out-of-bounds Write in Linux Linux_Kernel

CVE-2026-53266 — Linux ebtables SNAT ARP-rewrite page-cache wr...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ubifs: A fix was made to increment the reference count of a page once it is set as private. The MM structure defines a rule 1 very clearly: once a page is marked with the PGprivate flag, the reference count of that page should be...

Astra Linux – Vulnerability in amd64-microcode

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to influence the cache line write-back behavior of the CPU, resulting in a potential loss of integrity of the guest virtual machine VM memory...

CVE-2026-89487

A flaw was found in openvswitch in the Linux kernel. This vulnerability occurs when the queueuserspacepacket function incorrectly modifies a shared network packet buffer by stripping a critical flag. This action can lead to an unprivileged page-cache write, allowing a local attacker to modify dat...

Linux Distros Unpatched Vulnerability : CVE-2026-89487

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message users...

DEBIAN-CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

AZL-100568 CVE-2026-89487 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

UBUNTU-CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

EUVD-2026-76393

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

CVE-2026-89487 affects the openvswitch subsystem in the Linux kernel. The bug resides in queue_userspace_packet(), whose error path calls skb_tx_error() on a packet that is still being forwarded through remaining flow actions. This call strips SKBFL_SHARED_FRAG from the live skb via skb_zcopy_cle...