CVE-2025-21791

Updated: 2025-05-05 17:14:54.83583

Description:

In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdev_l3_out() l3mdev_l3_out() can be called without RCU being held: raw_sendmsg() ip_push_pending_frames() ip_send_skb() ip_local_out() __ip_local_out() l3mdev_ip_out() Add rcu_read_lock() / rcu_read_unlock() pair to avoid a potential UAF.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x HIGH 7.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 7.8 HIGH Released CLSA-2025:1747725447 2025-05-21 01:44:34
AlmaLinux 9.6 ESU kernel 5.14.0 7.8 HIGH Needs Triage 2025-07-03 10:44:38
CentOS 8.4 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2025:1747688514 2025-05-21 01:44:32
CentOS 8.5 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2025:1747688831 2025-05-21 01:44:33
CentOS Stream 8 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2025:1747688581 2025-05-21 01:44:32
Oracle Linux 7 ELS kernel-uek 5.4.17 7.8 HIGH Released CLSA-2025:1746479711 2025-05-08 04:11:26
Ubuntu 16.04 ELS linux-hwe 4.15.0 7.8 HIGH Released CLSA-2025:1744624441 2025-04-15 04:03:01
Ubuntu 18.04 ELS linux 4.15.0 7.8 HIGH Released CLSA-2025:1744213128 2025-04-10 05:59:49
Ubuntu 20.04 ELS linux 5.4.0 7.8 HIGH Released 2025-06-24 00:42:00