CVE-2025-38361

Kernel crash via unchecked dce_hwseq dereference

Published Jul 25, 2025 · Updated May 11, 2026

Null-pointer dereference in affected Linux kernels allows local users to crash the kernel during AMD display stream blanking. In dce110_blank_stream, a later operation dereferences link->dc->hwseq even though an earlier check establishes that the hardware-sequencer pointer can be null. Reachability requires an AMD display initialization state with a null hwseq pointer; Ubuntu reports that attackers cannot invoke or influence that state, so exploitation is not reliable.

CVSS severity7.8
High
EPSS probability0.20%
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 kernel during AMD display stream blanking. In dce110_blank_stream, a later operation dereferences link->dc->hwseq even though an earlier check establishes that the hardware-sequencer pointer can be null. Reachability requires an AMD display initialization state with a null hwseq pointer; Ubuntu reports that attackers cannot invoke or influence that state, so exploitation is not reliable.

The record

CVE
CVE-2025-38361
Published
Jul 25, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 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=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5e1482ae14b03b9fca73ef5afea26ede683f4450
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <60e450eec5d63113c6ad5c456ce64c12b4496a6e
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <b669507b637eb6b1aaecf347f193efccc65d756e
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <df11bf0ef795b6d415c4d8ee54fa3f2105e75bcb
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e881b82f5d3d8d54d168cd276169f0fee01bf0e7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5e1482ae14b03b9fca73ef5afea26ede683f4450; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <60e450eec5d63113c6ad5c456ce64c12b4496a6e; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <b669507b637eb6b1aaecf347f193efccc65d756e; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <df11bf0ef795b6d415c4d8ee54fa3f2105e75bcb; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e881b82f5d3d8d54d168cd276169f0fee01bf0e7

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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.

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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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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