CVE-2025-21766

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21766
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21766.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21766
Downstream
Related
Published
2025-02-27T02:18:16.570Z
Modified
2025-11-27T02:34:02.407642Z
Summary
ipv4: use RCU protection in __ip_rt_update_pmtu()
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv4: use RCU protection in _iprtupdatepmtu()

_iprtupdatepmtu() must use RCU protection to make sure the net structure it reads does not disappear.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/cc431b3424123d84bcd7afd4de150b33f117a8ef/cves/2025/21xxx/CVE-2025-21766.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
ce3c6165fce0f06305c806696882a3ad4b90e33f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
ea07480b23225942208f1b754fea1e7ec486d37e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
9b1766d1ff5fe496aabe9fc5f4e34e53f35c11c4
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
4583748b65dee4d61bd50a2214715b4237bc152a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
a39f61d212d822b3062d7f70fa0588e50e55664e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2fbc6e89b2f1403189e624cabaf73e189c5e50c6
Fixed
139512191bd06f1b496117c76372b2ce372c9a41
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
f415c264176e6095e9dee823e09c5bdd0ee0d337
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
98776a365da509ad923083ae54b38ee521c52742
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
860e2cc78c697c95bc749abb20047239fa1722ea
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
2b1be6c925cdf4638811765a9160796291494b89

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.9.0
Fixed
5.15.179
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.129
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.79
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.16
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.4