CVE-2025-21766
CVE-2025-21766CVE-2025-21766
linux / linux_kernel
Description
In the Linux kernel, the following vulnerability has been resolved:
ipv4: use RCU protection in __ip_rt_update_pmtu()
__ip_rt_update_pmtu() must use RCU protection to make
sure the net structure it reads does not disappear.
Scoring
| CVSS | 8.1 () |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Last modified | 2026-07-30 |