kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs

A flaw was found in the Linux kernel's Generic Receive Offload GRO networking subsystem. This vulnerability occurs when skbgroreceive attempts to merge zerocopy socket buffers skbs without properly managing page reference counts, specifically when the SKBFLMANAGEDFRAGREFS flag is set. An attacker...

UBUNTU-CVE-2026-46323

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skbgroreceive can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFLMANAGEDFRAGREFS flag. When SKBFLMANAGEDFRAGREFS is set, the...

CVE-2026-46323

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skbgroreceive can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFLMANAGEDFRAGREFS flag. When SKBFLMANAGEDFRAGREFS is set, the...

CVE-2026-46323 net: gro: don't merge zcopy skbs

In the Linux kernel, the following vulnerability has been resolved: net: gro: don't merge zcopy skbs skbgroreceive can currently copy frags between the source and GRO skb, without checking the zerocopy status, and in particular the SKBFLMANAGEDFRAGREFS flag. When SKBFLMANAGEDFRAGREFS is set, the...

USN-8390-1: Linux kernel vulnerability

It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker...

CVE-2026-46267

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llcshdlcdeinit purges SHDLC skb queues and frees the llcshdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule smwork...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the use of socket-level IV buffers in asynchronous AEAD requests within algifaead. This can lead ...

kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel

A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The...

SUSE SLES15 Security Update : kernel (Live Patch 28 for SUSE Linux Enterprise 15 SP5) (SUSE-SU-2026:1875-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:1875-1 advisory. This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.113 fixes one security issue The following security issue was fixed: - CVE-2026-4328...

SUSE-SU-2026:21767-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.29.1 fixes one security issue The following security issue was fixed: - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags bsc1264459...

SUSE-SU-2026:1960-1 Security update for the Linux Kernel (Live Patch 0 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.51 fixes one security issue The following security issue was fixed: - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags bsc1264459...

SUSE SLES15 Security Update : kernel RT (Live Patch 4 for SUSE Linux Enterprise 15 SP7) (SUSE-SU-2026:1858-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by a vulnerability as referenced in the SUSE- SU-2026:1858-1 advisory. This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.16 fixes one security issue The following security issue was fixed: - CVE-2026-43284:...

SUSE-SU-2026:21672-1 Security update for the Linux Kernel (Live Patch 13 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-36.1 fixes one security issue The following security issue was fixed: - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags bsc1264459...

SUSE-SU-2026:21695-1 Security update for the Linux Kernel (Live Patch 17 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-40.1 fixes one security issue The following security issue was fixed: - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags bsc1264459...

SUSE-SU-2026:21652-1 Security update for the Linux Kernel RT (Live Patch 8 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-31.1 fixes one security issue The following security issue was fixed: - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags bsc1264459...

The vulnerability of the RxRPC module in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the RxRPC module in the Linux operating system’s kernel arises due to improper handling of fragmented packages and mechanisms for copying data into socket buffers. Exploiting this vulnerability allows an attacker to cause service failures...

Important: kernel-livepatch-6.1.168-203.330

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags "Dirty Frag" and other issues in Amazon Linux kernels: https://aws.amazon.com/security/security-bulletins/2026-027-aws/ CVE-2026-43284 Affected Packages:...

CLSA-2026-1778260666 Update of kernel

xfrm: esp: avoid in-place decrypt on shared skb frags...

CLSA-2026-1778260978 Update of kernel

xfrm: esp: avoid in-place decrypt on shared skb frags...

CVE-2026-43254

In the Linux kernel, the following vulnerability has been resolved: ovpn: tcp - fix packet extraction from stream When processing TCP stream data in ovpntcprecv, we receive large cloned skbs from strprcv that may contain multiple coalesced packets. The current implementation has two bugs: 1...