CVE-2025-21764

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Source
https://cve.org/CVERecord?id=CVE-2025-21764
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21764.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21764
Downstream
Related
Published
2025-02-27T02:18:15.598Z
Modified
2026-03-20T12:41:09.365816Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
ndisc: use RCU protection in ndisc_alloc_skb()
Details

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

ndisc: use RCU protection in ndiscallocskb()

ndiscallocskb() can be called without RTNL or RCU being held.

Add RCU protection to avoid possible UAF.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21764.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
de09334b9326632bbf1a74bfd8b01866cbbf2f61
Fixed
96fc896d0e5b37c12808df797397fb16f3080879
Fixed
c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1
Fixed
b870256dd2a5648d5ed2f22316b3ac29a7e5ed63
Fixed
3c2d705f5adf5d860aaef90cb4211c0fde2ba66d
Fixed
9e0ec817eb41a55327a46cd3ce331a9868d60304
Fixed
bbec88e4108e8d6fb468d3817fa652140a44ff28
Fixed
cd1065f92eb7ff21b9ba5308a86f33d1670bf926
Fixed
628e6d18930bbd21f2d4562228afe27694f66da9

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21764.json"