PT-2026-08: Local Privilege Escalation Vulnerabilities in the Linux Kernel (Dirty Frag)

This security advisory provides information regarding Linux kernel vulnerabilities: CVE-2026-43284 and CVE-2026-43500 , informally known as Dirty Frag. These vulnerabilities allow for local privilege escalation to the superuser root level and affect the Linux kernel modules: esp4 , esp6 and rxrpc...

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...

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...

dirtyfrag-check

dirtyfrag-check A safe, read-only Python script to detect whe...

PT-2025-9934

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A issue in the Linux kernel has been resolved, related to the handling of received connection aborts in the rxrpc module. The problem occurs when a connection abort is received but not...