CVE-2024-45021
kernel: memcg_write_event_control(): fix a user-triggerable oops
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2024
Updated · September 13, 2026
Description
A flaw was found in the Linux kernel. A local user can exploit this vulnerability by triggering an 'oops' in the memcg_write_event_control() function. This issue arises because the kernel does not guarantee that memory beyond a null terminator is properly mapped, leading to an improper memory access. Successful exploitation can result in a denial of service (DoS) due to system instability.
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-99 · Improper Control of Resource Identifiers ('Resource Injection')