CVE-2025-38319

Local system crash via unchecked VRAM table lookup

Published Jul 10, 2025 · Updated May 11, 2026

NULL pointer dereference in the Linux kernel AMD power-management driver allows local users to crash the system during GPU initialization. atomctrl_initialize_mc_reg_table() and its v2_2 variant dereference the vram_info result from smu_atom_get_data_table() without checking whether retrieval returned NULL. Exploitation requires local low-privileged access and an affected AMD GPU path where VRAM table retrieval fails; the resulting kernel fault interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.15%
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 Linux kernel AMD power-management driver allows local users to crash the system during GPU initialization. atomctrl_initialize_mc_reg_table() and its v2_2 variant dereference the vram_info result from smu_atom_get_data_table() without checking whether retrieval returned NULL. Exploitation requires local low-privileged access and an affected AMD GPU path where VRAM table retrieval fails; the resulting kernel fault interrupts the host.

The record

CVE
CVE-2025-38319
Published
Jul 10, 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. Jul 10, 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=4.18
  2. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <64f3acc8c7e6809631457b75638601b36dea3129
  3. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <7080c20a9139842033ed4af604dc1fa4028593ad
  4. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <820116a39f96bdc7d426c33a804b52f53700a919
  5. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <85cdcb834fb490731ff2d123f87ca799c57dacf2
  6. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <a4ff7391c8b75b1541900bd9d0c238e558c11fb3
  7. Affected versionversion=b3892e2bb519fe18225d0628f0dd255761f16502 <cdf7e1ff99ab06ef15d0b5d1aca5258a4fb62b85

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.18; version=b3892e2bb519fe18225d0628f0dd255761f16502 <64f3acc8c7e6809631457b75638601b36dea3129; version=b3892e2bb519fe18225d0628f0dd255761f16502 <7080c20a9139842033ed4af604dc1fa4028593ad; version=b3892e2bb519fe18225d0628f0dd255761f16502 <820116a39f96bdc7d426c33a804b52f53700a919; version=b3892e2bb519fe18225d0628f0dd255761f16502 <85cdcb834fb490731ff2d123f87ca799c57dacf2; version=b3892e2bb519fe18225d0628f0dd255761f16502 <a4ff7391c8b75b1541900bd9d0c238e558c11fb3; version=b3892e2bb519fe18225d0628f0dd255761f16502 <cdf7e1ff99ab06ef15d0b5d1aca5258a4fb62b85

Published CVSS scores

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
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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