CVE-2024-46822

Medium

In the Linux kernel, the following vulnerability has been resolved: arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry In a review discussion of the changes to support vCPU hotplug where a check was added on the GICC being enabled if was online, it was noted that there is need to map back to the cpu and use that to index into a cpumask. As such, a valid ID is needed. If an MPIDR check fails in acpi_map_gic_cpu_interface() it is possible for the entry in cpu_madt_gicc[cpu] == NULL. This function would then cause a NULL pointer dereference. Whilst a path to trigger this has not been established, harden this caller against the possibility.

Package Linux Kernel
Published 2024-09-27
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2024-46822 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.7 and later are affected. Fixed in 5.4.284, 5.10.226, 5.15.167, 6.1.110, 6.6.51, 6.10.10, 6.11 and their respective stable series.

Affected from
≥ 3.7
Fixed in
✓ 5.4.284 5.4.x ✓ 5.10.226 5.10.x ✓ 5.15.167 5.15.x ✓ 6.1.110 6.1.x ✓ 6.6.51 6.6.x ✓ 6.10.10 6.10.x ✓ 6.11

References

The following references provide additional information about CVE-2024-46822 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

7 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2024-46822?

    CVE-2024-46822 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 3.7 onward and has been patched in 5.4.284, 5.10.226, 5.15.167 and others. CVE-2024-46822 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-46822?

    CVE-2024-46822 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-46822?

    Yes — CVE-2024-46822 has been patched. Fixed versions include 5.4.284, 5.10.226, 5.15.167 and others. If you are running Linux kernel 3.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-46822 actively exploited?

    No — CVE-2024-46822 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is NULL Pointer Dereference (CWE-476)?

    The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →

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