CVE-2026-68441

In the Linux kernel, the following vulnerability has been resolved: net/sched: Handle TCACTREDIRECT from qdisc filter chains When a TC filter attached to a qdisc filter chain returns TCACTREDIRECT ex: via an eBPF program calling bpfredirect or an actbpf action, the redirect was silently lost i.e ...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a reproduction example for u32classify: Bug:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Added bpfprogrundatapointers syzbot found that clsbpfclassify can change tcskbcbskb-dropreason, triggering a warning in skskbreasonDrop. WARNING: CPU: 0, PID: 5965, at net/core/skbuff.c:1192 skskbreasonDrop,...

CVE-2026-18980 nearai ironclaw shell.rs classify_command_risk command injection

A vulnerability was identified in nearai ironclaw up to 0.29.1. Affected is the function classifycommandrisk of the file src/tools/builtin/shell.rs. Such manipulation leads to command injection. The attack may be launched remotely. The exploit is publicly available and might be used. The name of...

AI Agents Are Visiting Your Website. Which Ones Should You Trust?

The internet is changing fast. For years, the main goal of search was simple: to help users find links. A user searched, reviewed results, clicked a website, and consumed the content directly from the source. But AI is changing that model. Increasingly, users ask AI assistants for answers instead...

CVE-2026-41218

When BIG-IP PEM iRules are configured on a virtual server iRules using commands starting with CLASSIFICATION::, CLASSIFY::, PEM::, PSC::, and the urlcatquery command, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End ...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the net/sched/schcbq.c file of the Linux kernel, from version 6.1.4 onwards, cbqclassify allows attackers to cause a denial of service due to type confusion. Non-negative numbers can sometimes indicate a TCACTSHOT condition rather than valid classification results, leading to improper processi...

offsec-skills

offsec-exploit-research Elite adaptive whitebox exploit resea...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

EUVD-2026-21945

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL pointer dereference on shared blocks The old-method path in fwclassify calls tcfblockq and dereferences q-handle. Shared blocks leave block-q NULL, causing a NULL deref when an empty clsfw filter is...

PT-2026-32350

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the netfilter x tables component where xt match and xt target structures registered with NFPROTO UNSPEC can be loaded by any protocol family via nft compat. When these...

kernel: net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204

CVE-2026-23204 affects the Linux kernel net/sched cls_u32. The root cause is that skb_header_pointer() does not fully validate negative @offset values, enabling a slab-out-of-bounds condition in u32_classify() (reported as BUG: KASAN). The fix replaces skb_header_pointer() with skb_header_pointer...

CurricuLLM: Designing Personalized and Workforce-Aligned Cybersecurity Curricula Using Fine-Tuned LLMs

The cybersecurity landscape is constantly evolving, driven by increased digitalization and new cybersecurity threats. Cybersecurity programs often fail to equip graduates with skills demanded by the workforce, particularly concerning recent developments in cybersecurity, as curriculum design is...

EUVD-2025-203696

In the Linux kernel, the following vulnerability has been resolved: bpf: Add bpfprogrundatapointers syzbot found that clsbpfclassify is able to change tcskbcbskb-dropreason triggering a warning in skskbreasondrop. WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 skskbreasondrop...

PT-2025-51613

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue where cls bpf classify can modify tc skb cbskb-drop reason, leading to a warning within sk skb reason drop. This occurs due to an incorrect interaction...

Cisco Integrated AI Security and Safety Framework Report

Artificial intelligence AI systems are being readily and rapidly adopted, increasingly permeating critical domains: from consumer platforms and enterprise software to networked systems with embedded agents. While this has unlocked potential for human productivity gains, the attack surface has...