CVE-2024-36884

Kernel crash via miscomputed ARM SMMU pointer

Published May 30, 2024 · Updated Aug 5, 2026

NULL pointer dereference in Linux 6.8 through 6.8.9 allows local users to crash the kernel through an NVIDIA ARM SMMU fault. The nvidia_smmu_context_fault() IRQ callback treats its data pointer as an arm_smmu_domain even though the embedded iommu_domain begins at a nonzero offset, so it derives the wrong containing object and dereferences an invalid pointer. Reachability requires NVIDIA Tegra hardware using the ARM SMMU driver and the fault-handler teardown path; the demonstrated consequence is a kernel oops that interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux 6.8 through 6.8.9 allows local users to crash the kernel through an NVIDIA ARM SMMU fault. The nvidia_smmu_context_fault() IRQ callback treats its data pointer as an arm_smmu_domain even though the embedded iommu_domain begins at a nonzero offset, so it derives the wrong containing object and dereferences an invalid pointer. Reachability requires NVIDIA Tegra hardware using the ARM SMMU driver and the fault-handler teardown path; the demonstrated consequence is a kernel oops that interrupts the host.

The record

CVE
CVE-2024-36884
Published
May 30, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.8
  2. Affected versionversion=e0976331ad114af8e379e18483c346c6c79ca858 <65ade5653f5ab5a21635e51d0c65e95f490f5b6f
  3. Affected versionversion=e0976331ad114af8e379e18483c346c6c79ca858 <e83de8f05b998e227b48cdeea54cba4c9d66d3aa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=e0976331ad114af8e379e18483c346c6c79ca858 <65ade5653f5ab5a21635e51d0c65e95f490f5b6f; version=e0976331ad114af8e379e18483c346c6c79ca858 <e83de8f05b998e227b48cdeea54cba4c9d66d3aa

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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