CVE-2026-72388

Local denial of service via IRQ-unsafe fence locking

Published Aug 15, 2026 · Updated Aug 15, 2026

Improper locking in the Linux kernel panthor driver allows local users to crash or hang the system through GPU job activity. The scheduler code acquires a shared dma_fence lock without preserving interrupt state, allowing hard-interrupt access from another driver to race or deadlock the same lock. Exploitation requires local low-privileged access and a system using the panthor GPU driver; the documented consequence is limited to system availability.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in the Linux kernel panthor driver allows local users to crash or hang the system through GPU job activity. The scheduler code acquires a shared dma_fence lock without preserving interrupt state, allowing hard-interrupt access from another driver to race or deadlock the same lock. Exploitation requires local low-privileged access and a system using the panthor GPU driver; the documented consequence is limited to system availability.

The record

CVE
CVE-2026-72388
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-413, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=6.10
  2. Affected versionversion=de85488138247d034eb3241840424a54d660926b <2946aa6c97ac0e0d777baef8c0e6d944da8724a3
  3. Affected versionversion=de85488138247d034eb3241840424a54d660926b <778c57d624974e64535ef1c9d9b4d8e5066153f4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=de85488138247d034eb3241840424a54d660926b <2946aa6c97ac0e0d777baef8c0e6d944da8724a3; version=de85488138247d034eb3241840424a54d660926b <778c57d624974e64535ef1c9d9b4d8e5066153f4

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS: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-413Improper Resource Locking
T1499.004Application 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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