CVE-2026-97422Hinoki check available

Cross-process GPU workload disclosure via unfiltered SMI events

Published Sep 24, 2026 · Updated Sep 24, 2026

Information disclosure in Linux before 6.18.53 allows local users in the render group to monitor other processes' GPU workloads. kfd_smi_event_add passes a zero PID for PROCESS_START, PROCESS_END, and VMFAULT events, causing kfd_smi_ev_enabled to skip its per-client privilege and PID filter. Access to /dev/kfd on an AMD KFD system is required, and exposure is limited to workload PIDs, command names, lifecycle events, and VM-fault activity.

CVSS severityUnavailable
Unscored
EPSS probability0.15%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Information disclosure in Linux before 6.18.53 allows local users in the render group to monitor other processes' GPU workloads. kfd_smi_event_add passes a zero PID for PROCESS_START, PROCESS_END, and VMFAULT events, causing kfd_smi_ev_enabled to skip its per-client privilege and PID filter. Access to /dev/kfd on an AMD KFD system is required, and exposure is limited to workload PIDs, command names, lifecycle events, and VM-fault activity.

The record

CVE
CVE-2026-97422
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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 <6.18.53
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5bb2dfa65d8da83e87b2a31c270bc567df69a5ca
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <92a8dba246d371fe268280e5fd74b0955688e6df

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0 <6.18.53; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5bb2dfa65d8da83e87b2a31c270bc567df69a5ca; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <92a8dba246d371fe268280e5fd74b0955688e6df

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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