Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading real_parent in do_task_stat() When reading /proc/[pid]/stat, do_task_stat() accesses task->real_parent without proper RCU protection, which leads to: cpu 0 cpu 1 ----- ----- do_task_stat var = task->real_parent release_task call_rcu(delayed_put_task_struct) task_tgid_nr_ns(var) rcu_read_lock <--- Too late to protect task->real_parent! task_pid_ptr <--- UAF! rcu_read_unlock This patch uses task_ppid_nr_ns() instead of task_tgid_nr_ns() to add proper RCU protection for accessing task->real_parent.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
CVE-2026-46259 Missing RCU Protection in Linux Kernel procfs do_task_stat() Function https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-46259
Post summary
The text announces a missing RCU protection flaw in the Linux kernel’s procfs do_task_stat function, without referencing any PoC, exploit, active attacks, or patch information.
A new vulnerability with increased severity was disclosed for Linux Kernel (CVE-2026-46259) https://vuldb.com/vuln/368177
Post summary
The post announces that CVE-2026-46259, a Linux Kernel vulnerability with increased severity, has been disclosed, and provides a link to the vulnerability database.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | linux | linux_kernel | - | - | - |