CVE-2026-46259

In the Linux kernel procfs path do_task_stat() reading /proc/[pid]/stat, task->real_parent is accessed without proper RCU protection, enabling a potential Use-After-Free when another task is released. The fix switches from task_tgid_nr_ns() to task_ppid_nr_ns() to add proper RCU protection for...

CVE-2026-46259 procfs: fix missing RCU protection when reading real_parent in do_task_stat()

In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading realparent in dotaskstat When reading /proc/pid/stat, dotaskstat accesses task-realparent without proper RCU protection, which leads to: cpu 0 cpu 1 ----- ----- dotaskstat var =...

Linux Distros Unpatched Vulnerability : CVE-2026-46259

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - procfs: fix missing RCU protection when reading realparent in dotaskstat When reading /proc/pid/stat, dotaskstat accesses task-realparent without proper RCU...