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CVE-2024-46822· NVD / CVE Program· CNA Linux

arm64: acpi: Harden get_cpu_for_acpi_id() against missing CPU entry

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 27, 2024
Updated
Jun 17, 2026
EPSS
0.3% · 15th percentile
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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 5.4.284
  • linux linux kernel5.5 and later · before 5.10.226
  • linux linux kernel5.11 and later · before 5.15.167
  • linux linux kernel5.16 and later · before 6.1.110
  • linux linux kernel6.2 and later · before 6.6.51
  • linux linux kernel6.7 and later · before 6.10.10

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.7affected
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before f57769ff6fa7f97f1296965f20e8a2bb3ee9fd0faffected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before 4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bcaffected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before 945be49f4e832a9184c313fdf8917475438a795baffected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before 40cae0df42e5e7f7a1c0f32deed9c4027c1ba94eaffected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before 62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7affected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before bc7fbb37e3d2df59336eadbd6a56be632e3c7df7affected · git
    • 0be7320a635c2e434e8b67e0e9474a85ceb421c4 and later · before 2488444274c70038eb6b686cba5f1ce48ebb9cddaffected · git
    • before 3.7not affected · semver
    • 5.4.284 and later · up to and including 5.4.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.112-16.1.112-1
Debian:13linuxbefore 6.10.11-16.10.11-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
  • CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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    77This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux2488444274c70038eb6b686cba5f1ce48ebb9cddVendor (CNA)
Linux Linux40cae0df42e5e7f7a1c0f32deed9c4027c1ba94eVendor (CNA)
Linux Linux4c3b21204abb4fa3ab310fbbb5cf7f0e85f3a1bcVendor (CNA)
Linux Linux62ca6d3a905b4c40cd942f3cc645a6718f8bc7e7Vendor (CNA)
Linux Linux945be49f4e832a9184c313fdf8917475438a795bVendor (CNA)
Linux Linuxbc7fbb37e3d2df59336eadbd6a56be632e3c7df7Vendor (CNA)
Linux Linuxf57769ff6fa7f97f1296965f20e8a2bb3ee9fd0fVendor (CNA)
debian:linux6.1.112-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records