CVE-2025-21765 (GCVE-0-2025-21765)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-05-12 12:03
VLAI?
Title
ipv6: use RCU protection in ip6_default_advmss()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 78ad057472d8c76e0602402269222f9f9c698790 (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < d02f30d220ef9511568a48dba8a9004c65f8d904 (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 28de355b63ad42309ed5a03ee7c436c90512265b (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 84212387caadb211cd9dadd6fd5563bd37dc1f5e (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 4176a68b0db8fc74ac14fcd00ba8231371051dc2 (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 713a40c892f40300d63691d9f85b2a23b48fe1e8 (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 550ed693f47370502a71b85382e7f9e6417300b8 (git)
Affected: 5578689a4e3c04f2d43ea39736fd3fa396d80c6e , < 3c8ffcd248da34fc41e52a46e51505900115fc2a (git)
Create a notification for this product.
Linux Linux Affected: 2.6.26
Unaffected: 0 , < 2.6.26 (semver)
Unaffected: 5.4.291 , ≤ 5.4.* (semver)
Unaffected: 5.10.235 , ≤ 5.10.* (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.79 , ≤ 6.6.* (semver)
Unaffected: 6.12.16 , ≤ 6.12.* (semver)
Unaffected: 6.13.4 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.