CVE-2024-46822
kernel: arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 27, 2024
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel, specifically within the ACPI (Advanced Configuration and Power Interface) CPU hotplug functionality. This vulnerability occurs when the system attempts to retrieve CPU information, and a missing CPU entry can lead to a NULL pointer dereference. A local attacker could potentially exploit this to trigger a system crash, resulting in a Denial of Service (DoS).
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-476 · NULL Pointer Dereference