CVE-2024-56620

Kernel crash via unconditional platform MSI cleanup

Published Dec 27, 2024 · Updated May 11, 2026

NULL pointer dereference in the Qualcomm UFS driver in Linux 6.3 through 6.12.4 and 6.13-rc1 allows local users to crash the kernel. The ufs_qcom_remove function calls platform_device_msi_free_irqs_all even when Event-Specific Interrupts are disabled and no platform MSI state exists, causing mutex_lock to dereference a null pointer. Triggering the crash requires local access with permission to remove the Qualcomm UFS kernel module; the documented consequence is a kernel crash during driver teardown.

CVSS severity5.5
Medium
EPSS probability0.21%
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 the Qualcomm UFS driver in Linux 6.3 through 6.12.4 and 6.13-rc1 allows local users to crash the kernel. The ufs_qcom_remove function calls platform_device_msi_free_irqs_all even when Event-Specific Interrupts are disabled and no platform MSI state exists, causing mutex_lock to dereference a null pointer. Triggering the crash requires local access with permission to remove the Qualcomm UFS kernel module; the documented consequence is a kernel crash during driver teardown.

The record

CVE
CVE-2024-56620
Published
Dec 27, 2024
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. Dec 27, 2024CVE 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=519b6274a7775f5fe00a086f189efb8f063467d1 <64506b3d23a337e98a74b18dcb10c8619365f2bd
  2. Affected versionversion=519b6274a7775f5fe00a086f189efb8f063467d1 <f16a097047e38dcdd169a15e3eed1b2f2147a2e7
  3. Affected versionversion=519b6274a7775f5fe00a086f189efb8f063467d1 <f99cb5f6344ef93777fd3add7979ebf291a852df
  4. Affected versionversion=6.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=519b6274a7775f5fe00a086f189efb8f063467d1 <64506b3d23a337e98a74b18dcb10c8619365f2bd; version=519b6274a7775f5fe00a086f189efb8f063467d1 <f16a097047e38dcdd169a15e3eed1b2f2147a2e7; version=519b6274a7775f5fe00a086f189efb8f063467d1 <f99cb5f6344ef93777fd3add7979ebf291a852df; version=6.3

Published CVSS scores

5.5NIST NVDCVSS: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
T1499.004Endpoint Denial of Service: Application 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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