In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential 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

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/04e05112f10354ffc3bb6cc796d553bab161594c cve-icon cve-icon
https://git.kernel.org/stable/c/10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1 cve-icon cve-icon
https://git.kernel.org/stable/c/4d576202b90b1b95a7c428a80b536f91b8201bcc cve-icon cve-icon
https://git.kernel.org/stable/c/789230e5a8c1097301afc802e242c79bc8835c67 cve-icon cve-icon
https://git.kernel.org/stable/c/a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d cve-icon cve-icon
https://git.kernel.org/stable/c/ae38982f521621c216fc2f5182cd091f4734641d cve-icon cve-icon
https://git.kernel.org/stable/c/e24d225e4cb8cf108bde00b76594499b98f0a74d cve-icon cve-icon
https://git.kernel.org/stable/c/ed6ae1f325d3c43966ec1b62ac1459e2b8e45640 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2025-21760-fb9d@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21760 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21760 cve-icon
History

Mon, 24 Mar 2025 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Thu, 13 Mar 2025 12:30:00 +0000

Type Values Removed Values Added
References

Wed, 05 Mar 2025 04:30:00 +0000

Type Values Removed Values Added
Metrics threat_severity

Important

 threat_severity

Moderate

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

Important

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: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential UAF.
Title ndisc: extend RCU protection in ndisc_send_skb()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-27T02:18:13.496Z

Updated: 2025-03-24T15:39:56.655Z

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

Link: CVE-2025-21760

cve-icon Vulnrichment

Updated: 2025-02-27T17:57:41.960Z

cve-icon NVD

Status : Analyzed

Published: 2025-02-27T03:15:16.653

Modified: 2025-03-24T17:38:15.297

Link: CVE-2025-21760

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2025-21760 - Bugzilla