CVE-2026-43409

A flaw was found in the Linux kernel's kprobes subsystem. When the ftrace tracing utility is disabled due to errors, a local user can cause a system crash by removing a kernel module that uses kprobe probes. This vulnerability arises from kprobes not correctly handling the ftrace disabled state,...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4912-1 advisory. Piotr Krysiuk discovered that the BPF JIT compiler for x86 in the Linux kernel did not properly validate computation of branch displacements in some...