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Status published
Unknown
CVE-2025-21766
ipv4: use RCU protection in __ip_rt_update_pmtu()
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/ce3c6165fce0f06305c806696882a3ad4b90e33f
- https://git.kernel.org/stable/c/ea07480b23225942208f1b754fea1e7ec486d37e
- https://git.kernel.org/stable/c/9b1766d1ff5fe496aabe9fc5f4e34e53f35c11c4
- https://git.kernel.org/stable/c/4583748b65dee4d61bd50a2214715b4237bc152a
- https://git.kernel.org/stable/c/a39f61d212d822b3062d7f70fa0588e50e55664e
- https://git.kernel.org/stable/c/139512191bd06f1b496117c76372b2ce372c9a41
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Affected Vendor
Linux
View all reports →Affected Software
Linux
Vulnerable Versions:
2fbc6e89b2f1403189e624cabaf73e189c5e50c6, f415c264176e6095e9dee823e09c5bdd0ee0d337, 98776a365da509ad923083ae54b38ee521c52742, 860e2cc78c697c95bc749abb20047239fa1722ea, 2b1be6c925cdf4638811765a9160796291494b89, 4.14.200, 4.19.148, 5.4.68, 5.8.12, 5.9, 0, 5.15.179, 6.1.129, 6.6.79, 6.12.16, 6.13.4, 6.14
Timeline
Official Publish:
February 27th, 2025
Last Modified:
July 14th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.