In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/3c2d705f5adf5d860aaef90cb4211c0fde2ba66d cve-icon cve-icon
https://git.kernel.org/stable/c/628e6d18930bbd21f2d4562228afe27694f66da9 cve-icon cve-icon
https://git.kernel.org/stable/c/9e0ec817eb41a55327a46cd3ce331a9868d60304 cve-icon cve-icon
https://git.kernel.org/stable/c/bbec88e4108e8d6fb468d3817fa652140a44ff28 cve-icon cve-icon
https://git.kernel.org/stable/c/cd1065f92eb7ff21b9ba5308a86f33d1670bf926 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022605-CVE-2025-21764-1061@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21764 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21764 cve-icon
History

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 28 Feb 2025 02:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 27 Feb 2025 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Feb 2025 02:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF.
Title ndisc: use RCU protection in ndisc_alloc_skb()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-27T02:18:15.598Z

Updated: 2025-02-27T18:02:26.827Z

Reserved: 2024-12-29T08:45:45.761Z

Link: CVE-2025-21764

cve-icon Vulnrichment

Updated: 2025-02-27T17:57:21.860Z

cve-icon NVD

Status : Received

Published: 2025-02-27T03:15:17.063

Modified: 2025-02-27T18:15:29.903

Link: CVE-2025-21764

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-27T00:00:00Z

Links: CVE-2025-21764 - Bugzilla