7.8

CVE-2025-21791

vrf: use RCU protection in l3mdev_l3_out()

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.9 < 6.1.129
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.79
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.16
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.4
Linux ≫ Linux Kernel Version6.14 Updaterc1
Linux ≫ Linux Kernel Version6.14 Updaterc2
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.158
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/022cac1c693add610ae76ede03adf4d9d5a2cf21
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://git.kernel.org/stable/c/20a3489b396764cc9376e32a9172bee26a89dc3b
Patch
https://git.kernel.org/stable/c/5bb4228c32261d06e4fbece37ec3828bcc005b6b
Patch
https://git.kernel.org/stable/c/6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51e
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html