CVE-2025-21760

Updated: 2025-08-20 03:15:16.079496

Description:

In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential UAF.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x NONE 0.0
CVSS Version 3.x MEDIUM 5.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

Oracle Linux 7 ELS kernel-uek 5.4.17 5.5 MEDIUM Released CLSA-2025:1746479711 2025-05-08 04:11:30
Ubuntu 16.04 ELS linux-hwe 4.15.0 5.5 MEDIUM Released CLSA-2025:1754037492 2025-08-02 00:18:23
Ubuntu 18.04 ELS linux 4.15.0 5.5 MEDIUM Released CLSA-2025:1754037789 2025-08-02 00:21:30