CVE-2025-21763

high

Description

In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.

References

https://git.kernel.org/stable/c/e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32

https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df

https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569

https://git.kernel.org/stable/c/8666e9aab801328c1408a19fbf4070609dc0695a

https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b

https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159

https://git.kernel.org/stable/c/40d8f2f2a373b6c294ffac394d2bb814b572ead1

https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379

Details

Source: Mitre, NVD

Published: 2025-02-27

Updated: 2025-03-21

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H