Vulnerability details

CVE-2022-49289

Linux Linux

uaccess: fix integer overflow on access_ok()

CVSS 3.1
7.8High

Official 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.

CVSS scores

ScoreVersionSourceVector
7.8High 3.1 CVEProject cvelistV5 (CNA) (Linux) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
Linux Linux 3.2 CVEProject cvelistV5 (CNA)
Linux Linux 7567746e1c0d66ac0ef8a9d8816ca694462c7370 ≤ v < e65d28d4e9bf90a35ba79c06661a572a38391dec CVEProject cvelistV5 (CNA)
Linux Linux 7567746e1c0d66ac0ef8a9d8816ca694462c7370 ≤ v < 99801e2f457824955da4aadaa035913a6dede03a CVEProject cvelistV5 (CNA)
Linux Linux 7567746e1c0d66ac0ef8a9d8816ca694462c7370 ≤ v < a1ad747fc1a0e06d1bf26b996ee8a56b5c8d02d8 CVEProject cvelistV5 (CNA)
Linux Linux 7567746e1c0d66ac0ef8a9d8816ca694462c7370 ≤ v < 222ca305c9fd39e5ed8104da25c09b2b79a516a8 CVEProject cvelistV5 (CNA)

References and advisories

4
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Details

Published
2025-02-26
Last updated
2026-08-05
State
Published
Assigner (CNA)
Linux

Exploit prediction (EPSS)

0.27%
Probability of exploitation in 30 days
19.9%
Percentile (among all CVEs)

Weaknesses (CWE)

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