CVE-2024-49890

Kernel crash via unchecked firmware-information pointer

Published Oct 21, 2024 · Updated May 12, 2026

NULL-pointer dereference in Linux 4.5 and later allows local users to crash the kernel through AMD GPU power-management processing. The init_overdrive_limits function uses fields from a firmware-information table returned by smu_atom_get_data_table without first rejecting NULL. Exploitation requires low-privileged local access and an AMD GPU path where that table lookup fails; the bounded consequence is a kernel crash.

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 Linux 4.5 and later allows local users to crash the kernel through AMD GPU power-management processing. The init_overdrive_limits function uses fields from a firmware-information table returned by smu_atom_get_data_table without first rejecting NULL. Exploitation requires low-privileged local access and an AMD GPU path where that table lookup fails; the bounded consequence is a kernel crash.

The record

CVE
CVE-2024-49890
Published
Oct 21, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-476, T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 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=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=3bace359149391c6547cefe3bf729f365bcf3ef6 <016bf0294b401246471c6710c6bf9251616228b6; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <186fb12e7a7b038c2710ceb2fb74068f1b5d55a4; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <29f388945770bd0a6c82711436b2bc98b0dfac92; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <8adf4408d482faa51b2c14e60bfd9946ec1911a4; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <9550d8d6f19fac7623f044ae8d9503825b325497; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <b511474f49588cdca355ebfce54e7eddbf7b75a5; version=3bace359149391c6547cefe3bf729f365bcf3ef6 <fd5f4ac1a986f0e7e9fa019201b5890554f87bcf; version=4.5

Published CVSS scores

5.5SiemensCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST National Vulnerability DatabaseCVSS: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
T1489Service Stop

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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