CVE-2024-53224

Host crash via mlx5 notifier cleanup race

Published Dec 27, 2024 · Updated Aug 5, 2026

NULL pointer dereference in affected Linux kernels allows attackers to crash the host during mlx5 RDMA device teardown. Notifier cleanup can leave pkey_change_handler work executing after the associated InfiniBand device has been unregistered. Triggering the panic requires a P_Key change work item to race with mlx5 device removal; the documented consequence is a host-wide kernel panic.

CVSS severity8.8
High
EPSS probability0.32%
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 attackers to crash the host during mlx5 RDMA device teardown. Notifier cleanup can leave pkey_change_handler work executing after the associated InfiniBand device has been unregistered. Triggering the panic requires a P_Key change work item to race with mlx5 device removal; the documented consequence is a host-wide kernel panic.

The record

CVE
CVE-2024-53224
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.6
  2. Affected versionversion=7722f47e71e58592a2ba4437d27c802ba1c64e08 <542bd62b7a7f37182c9ef192c2bd25d118c144e4
  3. Affected versionversion=7722f47e71e58592a2ba4437d27c802ba1c64e08 <6b0acf6a94c31efa43fce4edc22413a3390f9c05
  4. Affected versionversion=7722f47e71e58592a2ba4437d27c802ba1c64e08 <921fcf2971a1e8d3b904ba2c2905b96f4ec3d4ad
  5. Affected versionversion=7722f47e71e58592a2ba4437d27c802ba1c64e08 <ede132a5cf559f3ab35a4c28bac4f4a6c20334d8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.6; version=7722f47e71e58592a2ba4437d27c802ba1c64e08 <542bd62b7a7f37182c9ef192c2bd25d118c144e4; version=7722f47e71e58592a2ba4437d27c802ba1c64e08 <6b0acf6a94c31efa43fce4edc22413a3390f9c05; version=7722f47e71e58592a2ba4437d27c802ba1c64e08 <921fcf2971a1e8d3b904ba2c2905b96f4ec3d4ad; version=7722f47e71e58592a2ba4437d27c802ba1c64e08 <ede132a5cf559f3ab35a4c28bac4f4a6c20334d8

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.8kernel.orgCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
T1499Endpoint Denial of Service

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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