IM
IronMonkey Threat Research

CVE-2025-21764 HIGH

Published: 2025-02-27 | Last Modified: 2026-07-14 | Status: Modified

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.

Additional Descriptions (1)

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ndisc: usar protección RCU en ndisc_alloc_skb() ndisc_alloc_skb() se puede llamar sin que se mantenga RTNL o RCU. Agregue protección RCU para evitar posibles UAF.

CVSS Metrics

Base Score: 7.8 (HIGH)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Type: Secondary

Exploitability Score: 1.8

Impact Score: 5.9

Weaknesses

Source Type Description
134c704f-9b21-4f2e-91b3-4a467353bcc0 Secondary
en CWE-416

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7d23af202a00> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23af202600> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23af2025c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d2364591600> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23af203d40> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d23af2011c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7d2364593600> Operating System
linux linux_kernel 6.14 <built-in method update of dict object at 0x7d23af200140> Operating System
linux linux_kernel 6.14 <built-in method update of dict object at 0x7d23af200340> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*

References

Notification
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