CVE-2026-43381

Local GPU driver crash via sleeping-device AUX transfer

Published May 8, 2026 · Updated May 8, 2026

A denial of service in affected Linux kernel releases allows local users to crash the nouveau GPU driver through a DisplayPort AUX request. The DPCD AUX transfer path submits the request to GSP while the device is runtime-suspended instead of rejecting the operation as busy. Reachability requires local access to /dev/drm_dp_* on a system using nouveau with a sleeping device; the resulting fault interrupts GPU-driver availability.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A denial of service in affected Linux kernel releases allows local users to crash the nouveau GPU driver through a DisplayPort AUX request. The DPCD AUX transfer path submits the request to GSP while the device is runtime-suspended instead of rejecting the operation as busy. Reachability requires local access to /dev/drm_dp_* on a system using nouveau with a sleeping device; the resulting fault interrupts GPU-driver availability.

The record

CVE
CVE-2026-43381
Published
May 8, 2026
Updated
May 8, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 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=3.16
  2. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <178df7c91e6c202579284df9f79d1592a514cdcf
  3. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <24639553a016578222ac597db924dfb6fa5ec8b5
  4. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <4df518aa196085909fd7e32518ecd27fba60ed69
  5. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <6bdd2d70c338d52c387d3b3aadc596784ae81b01
  6. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <8f3c6f08ababad2e3bdd239728cf66a9949446b4
  7. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <ad8fa5bff53f5d1f8394f996850da8ce070eaee3
  8. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c
  9. Affected versionversion=8894f4919bc43f821775db2cfff4b917871b2102 <fad178ae894930520519ead3c8e0150641466360

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.16; version=8894f4919bc43f821775db2cfff4b917871b2102 <178df7c91e6c202579284df9f79d1592a514cdcf; version=8894f4919bc43f821775db2cfff4b917871b2102 <24639553a016578222ac597db924dfb6fa5ec8b5; version=8894f4919bc43f821775db2cfff4b917871b2102 <4df518aa196085909fd7e32518ecd27fba60ed69; version=8894f4919bc43f821775db2cfff4b917871b2102 <6bdd2d70c338d52c387d3b3aadc596784ae81b01; version=8894f4919bc43f821775db2cfff4b917871b2102 <8f3c6f08ababad2e3bdd239728cf66a9949446b4; version=8894f4919bc43f821775db2cfff4b917871b2102 <ad8fa5bff53f5d1f8394f996850da8ce070eaee3; version=8894f4919bc43f821775db2cfff4b917871b2102 <cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c; version=8894f4919bc43f821775db2cfff4b917871b2102 <fad178ae894930520519ead3c8e0150641466360

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CanonicalCVSS: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

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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