CVEvulnerability
CVE-2025-21791
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2025-02-27
- Last modified
- 2026-10-15
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
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.
Affected configurations
• linux linux kernel (>= 4.9 < 6.1.129)
• linux linux kernel (>= 6.2 < 6.6.79)
• linux linux kernel (>= 6.7 < 6.12.16)
• linux linux kernel (>= 6.13 < 6.13.4)
• linux linux kernel 6.14
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/022cac1c693add610ae76ede03adf4d9d5a2cf21 Patch
- https://git.kernel.org/stable/c/20a3489b396764cc9376e32a9172bee26a89dc3b Patch
- https://git.kernel.org/stable/c/5bb4228c32261d06e4fbece37ec3828bcc005b6b Patch
- https://git.kernel.org/stable/c/6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51e Patch
- https://git.kernel.org/stable/c/6d0ce46a93135d96b7fa075a94a88fe0da8e8773 Patch
- https://git.kernel.org/stable/c/7b81425b517accefd46bee854d94954f5c57e019 Patch
- https://git.kernel.org/stable/c/c40cb5c03e37552d6eff963187109e2c3f78ef6f Patch
- https://git.kernel.org/stable/c/c7574740be8ce68a57d0aece24987b9be2114c3c Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html lists.debian.org
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html cert-portal.siemens.com