CVE-2025-21765

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
UNKNOWN
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LinuxCNA
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
vulnerable
bullseye (security)
vulnerable
bookworm
6.1.129-1
fixed
bookworm (security)
vulnerable
trixie
6.12.20-1
fixed
sid
6.12.21-1
fixed
linux-6.1
bullseye (security)
6.1.129-1~deb11u1
fixed
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/28de355b63ad42309ed5a03ee7c436c90512265b
https://git.kernel.org/stable/c/3c8ffcd248da34fc41e52a46e51505900115fc2a
https://git.kernel.org/stable/c/4176a68b0db8fc74ac14fcd00ba8231371051dc2
https://git.kernel.org/stable/c/550ed693f47370502a71b85382e7f9e6417300b8
https://git.kernel.org/stable/c/713a40c892f40300d63691d9f85b2a23b48fe1e8
https://git.kernel.org/stable/c/78ad057472d8c76e0602402269222f9f9c698790
https://git.kernel.org/stable/c/84212387caadb211cd9dadd6fd5563bd37dc1f5e
https://git.kernel.org/stable/c/d02f30d220ef9511568a48dba8a9004c65f8d904