High
ipv6: use RCU protection in ip6_default_advmss()
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.
Announced Source revision 1
Original source ↗CVE-2025-21765
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21765
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "78ad057472d8c76e0602402269222f9f9c698790",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "d02f30d220ef9511568a48dba8a9004c65f8d904",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "28de355b63ad42309ed5a03ee7c436c90512265b",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "84212387caadb211cd9dadd6fd5563bd37dc1f5e",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "4176a68b0db8fc74ac14fcd00ba8231371051dc2",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "713a40c892f40300d63691d9f85b2a23b48fe1e8",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "550ed693f47370502a71b85382e7f9e6417300b8",
"versionType": "git"
},
{
"status": "affected",
"version": "5578689a4e3c04f2d43ea39736fd3fa396d80c6e",
"lessThan": "3c8ffcd248da34fc41e52a46e51505900115fc2a",
"versionType": "git"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.26"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.26",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.291",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.79",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21765
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26939 · Revision 1
- Added to Heist Feed
- Publisher date