https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T09:14:53.236621+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2025-21791 CVE-2025-21791 — vrf: use RCU protection in l3mdev_l3_out() 2026-10-06T09:14:53.250995+00:00

Affected: Linux

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.