CVE-2024-42131
kernel: mm: avoid overflows in dirty throttling logic
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 30, 2024
Updated · October 31, 2026
Description
A vulnerability was found in the Linux kernel's memory management subsystem where a lack of proper size checks on dirty limits can lead to situations where large dirty limits end up being larger than 32-bits, resulting in potential overflows and divisions by 0. This can cause memory corruption, system instability, or crashes.
Statement
Red Hat believes this flaw is moderate severity because the privileges necessary to exploit this vulnerability are high, as it requires a user to have elevated permissions to set the dirty page limits.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound