GHSA-vr2w-w74g-r822HighCVSS 7.8
In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (13)
- https://nvd.nist.gov/vuln/detail/CVE-2025-21791
- https://git.kernel.org/stable/c/022cac1c693add610ae76ede03adf4d9d5a2cf21
- https://git.kernel.org/stable/c/6d0ce46a93135d96b7fa075a94a88fe0da8e8773
- https://git.kernel.org/stable/c/7b81425b517accefd46bee854d94954f5c57e019
- https://git.kernel.org/stable/c/c40cb5c03e37552d6eff963187109e2c3f78ef6f
- https://git.kernel.org/stable/c/c7574740be8ce68a57d0aece24987b9be2114c3c
- https://git.kernel.org/stable/c/20a3489b396764cc9376e32a9172bee26a89dc3b
- https://git.kernel.org/stable/c/5bb4228c32261d06e4fbece37ec3828bcc005b6b
- https://git.kernel.org/stable/c/6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51e
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
- https://github.com/advisories/GHSA-vr2w-w74g-r822