CVE-2026-43503

🚨 CVE-2026-43503 — DirtyClone When Shared Memory Stops Being Shared Safely. A Local Privilege Escalation vulnerability caused by improper propagation of the SKBFLSHAREDFRAG flag inside the Linux networking stack. 📖 Overview CVE-2026-43503 , nicknamed DirtyClone , is a High Severity Local Privileg...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix skb leak on flow key update failure during ct ovsctexecute always steals or frees the skb on failure while ovsflowkeyupdate does not. So, if it fails and we return right away, the skb ends up leaked. The fix...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AFUNIX GC. When a socket in SOCKMAP receives a skb containing an inflight fd, skpsockverdictdataready looks up the mapped socket and enqueues the skb ...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: nfc: fdp: bound the device-reported read length and fix an skb leak fdpncii2cread takes the next packet length from two device-supplied bytes and never validates it. The value is a u16 used as the i2cmasterrecv count into a...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ipip: fix skb leak in collectmd mode when metadatadst allocation fails In collectmd mode, ipiptunnelrcv returns 0 without freeing the skb when iptunrxdst fails to allocate the metadatadst. ipiprcv and mplsiprcv are registered as...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: veth: fix skb length accounting after XDP frag adjustment veth exposes non-linear skb fragments through an xdpbuff. If an XDP program adjusts the fragment area, vethxdprcvskb copies xdpfragssize back to skb-datalen but leaves...

CVE-2026-64563_EXP

CVE-2026-64563EXP For experimental research only. The code for prefetch and nperm the memory reference set.gdb needs to be configured is not attached, and since it has not been optimized, the hit probability is low. The author noticed that the vulnerability author has already released relevant...

DirtyFrag-for-dummies

Dirty Frag / CVE-2026-43284 — Research Notes Overview This repository contains a cleaned-up technical diagram and supporting notes for the Linux kernel vulnerability commonly referred to as Dirty Frag and tracked for the xfrm-ESP path as CVE-2026-43284. The issue belongs to the broader Dirty Frag...

CVE-2026-31429-POC

CVE-2026-31429 — Linux Kernel: Cross-Cache Free of KFENCE-Allocated SKB Head via bpfprogtestrunskb Severity: Medium CWE-763: Release of Invalid Pointer or Reference Published: 2026-04-20 Affected subsystem: net/core/skbuff.c — skbkfreehead Researcher: Antonius / w1sdom — Blue Dragon Security...

CVE-2026-99192

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: unshare the skb before writing the control block bcmgenet stores firstcb, lastcb and bytessent in the skb control block and reads them back on completion to free the skb and credit BQL. ethersetup leaves...

CVE-2026-99211

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

SUSE CVE-2026-99192

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: unshare the skb before writing the control block bcmgenet stores firstcb, lastcb and bytessent in the skb control block and reads them back on completion to free the skb and credit BQL. ethersetup leaves...

CVE-2026-99211

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

CVE-2026-99192

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: unshare the skb before writing the control block bcmgenet stores firstcb, lastcb and bytessent in the skb control block and reads them back on completion to free the skb and credit BQL. ethersetup leaves...

AZL-111359 CVE-2026-99192 affecting package kernel 6.6.159.1-1

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: unshare the skb before writing the control block bcmgenet stores firstcb, lastcb and bytessent in the skb control block and reads them back on completion to free the skb and credit BQL. ethersetup leaves...

DEBIAN-CVE-2026-99192

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: unshare the skb before writing the control block bcmgenet stores firstcb, lastcb and bytessent in the skb control block and reads them back on completion to free the skb and credit BQL. ethersetup leaves...

UBUNTU-CVE-2026-99211

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

CVE-2026-99211 netlink: reset skb headers before unicast and multicast filtering

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

CVE-2026-99211

The Linux kernel is affected by a vulnerability in netlink where producers may reserve skb headroom without resetting the network and MAC headers. This allows a receiving socket's filter to use SKF_NET_OFF and SKF_LL_OFF to read data before the initialized message. Specifically, an unprivileged N...

EUVD-2026-111963

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...