CVE-2022-49289

high

Description

In the Linux kernel, the following vulnerability has been resolved: uaccess: fix integer overflow on access_ok() Three architectures check the end of a user access against the address limit without taking a possible overflow into account. Passing a negative length or another overflow in here returns success when it should not. Use the most common correct implementation here, which optimizes for a constant 'size' argument, and turns the common case into a single comparison.

References

https://git.kernel.org/stable/c/e65d28d4e9bf90a35ba79c06661a572a38391dec

https://git.kernel.org/stable/c/a1ad747fc1a0e06d1bf26b996ee8a56b5c8d02d8

https://git.kernel.org/stable/c/99801e2f457824955da4aadaa035913a6dede03a

https://git.kernel.org/stable/c/222ca305c9fd39e5ed8104da25c09b2b79a516a8

Details

Source: Mitre, NVD

Published: 2025-02-26

Updated: 2025-02-26

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

Severity: High