CVE-2024-45828

Local system crash via DMA cleanup interrupt race

Published Jan 11, 2025 · Updated May 11, 2026

NULL pointer dereference in affected Linux kernels allows local users to crash the system during I3C HCI DMA bus cleanup. The cleanup sequence clears io_data before ring interrupts are masked, allowing a late RING_OP_STAT interrupt to make hci_dma_irq_handler() dereference it. The race requires local low-privileged access and a host using the MIPI I3C HCI driver in DMA mode; the bounded impact is loss of availability.

CVSS severity5.5
Medium
EPSS probability0.25%
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 affected Linux kernels allows local users to crash the system during I3C HCI DMA bus cleanup. The cleanup sequence clears io_data before ring interrupts are masked, allowing a late RING_OP_STAT interrupt to make hci_dma_irq_handler() dereference it. The race requires local low-privileged access and a host using the MIPI I3C HCI driver in DMA mode; the bounded impact is loss of availability.

The record

CVE
CVE-2024-45828
Published
Jan 11, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <19cc5767334bfe980f52421627d0826c0da86721
  2. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <6ca2738174e4ee44edb2ab2d86ce74f015a0cc32
  3. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <9d745a56aea45e47f4755bc12e6429d6314dbb54
  4. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <a6cddf68b3405b272b5a3cad9657be0b02b34bf4
  5. Affected versionversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <a6dc4b4fda2e147e557050eaae51ff15edeb680b
  6. Affected versionversion=5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <19cc5767334bfe980f52421627d0826c0da86721; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <6ca2738174e4ee44edb2ab2d86ce74f015a0cc32; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <9d745a56aea45e47f4755bc12e6429d6314dbb54; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <a6cddf68b3405b272b5a3cad9657be0b02b34bf4; version=3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 <a6dc4b4fda2e147e557050eaae51ff15edeb680b; version=5.0

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7SUSECVSS:3.1/AV:L/AC:H/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
5.5CISA-ADPCVSS: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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