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CVE-2025-21765

ipv6: use RCU protection in ip6_default_advmss()

EPSS 0.2%
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
27 Feb 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6_default_advmss() ip6_default_advmss() needs rcu protection to make sure the net structure it reads does not disappear.
Affected products
Linux · Linux
References
https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265bhttps://git.kernel.org/stable/c/3c8ffcd248da34fc41e52a46e51505900115fc2ahttps://git.kernel.org/stable/c/4176a68b0db8fc74ac14fcd00ba8231371051dc2https://git.kernel.org/stable/c/550ed693f47370502a71b85382e7f9e6417300b8https://git.kernel.org/stable/c/713a40c892f40300d63691d9f85b2a23b48fe1e8https://git.kernel.org/stable/c/78ad057472d8c76e0602402269222f9f9c698790https://git.kernel.org/stable/c/84212387caadb211cd9dadd6fd5563bd37dc1f5ehttps://git.kernel.org/stable/c/d02f30d220ef9511568a48dba8a9004c65f8d904https://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html