CVE-2025-21766
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Linux Kernel
PublishedFeb 27, 2025
First seenFeb 27, 2025
How to fix
Update
- linux linux_kernel4.15, 4.20, 5.5, 5.9, 5.15.179, 6.1.129, 6.6.79, 6.12.16, 6.13.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.14.200 ≤ v < 4.15, 4.19.148 ≤ v < 4.20, 5.4.68 ≤ v < 5.5, 5.8.12 ≤ v < 5.9, 5.9.1 ≤ v < 5.15.179, 5.16 ≤ v < 6.1.129, 6.2 ≤ v < 6.6.79, 6.7 ≤ v < 6.12.16, 6.13 ≤ v < 6.13.4, 5.9, 6.14 | 4.15, 4.20, 5.5, 5.9, 5.15.179, 6.1.129, 6.6.79, 6.12.16, 6.13.4 |
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