CVE-2026-52904

Service interruption via failed nouveau probe cleanup

Published Jun 9, 2026 · Updated Jun 9, 2026

Resource leak in the Linux kernel's nouveau DRM driver from 6.12 allows local users to interrupt service during PCI device probing. The nouveau probe error path returns after aperture_remove_conflicting_pci_devices() fails without deleting the nvkm_device allocated by nvkm_device_pci_new(), leaking the wrapper and its pci_enable_device() reference. Triggering the affected probe path requires root-level sysfs PCI bind access or CAP_SYS_MODULE, and repeated failures consume kernel resources rather than disclose or alter data.

CVSS severity5.5
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in the Linux kernel's nouveau DRM driver from 6.12 allows local users to interrupt service during PCI device probing. The nouveau probe error path returns after aperture_remove_conflicting_pci_devices() fails without deleting the nvkm_device allocated by nvkm_device_pci_new(), leaking the wrapper and its pci_enable_device() reference. Triggering the affected probe path requires root-level sysfs PCI bind access or CAP_SYS_MODULE, and repeated failures consume kernel resources rather than disclose or alter data.

The record

CVE
CVE-2026-52904
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-401, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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=6.12
  2. Affected versionversion=c0bfe34330b5fafdbbc63a7124841711651b96b9 <4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6
  3. Affected versionversion=c0bfe34330b5fafdbbc63a7124841711651b96b9 <5edd564ccb002ffc830e7818c1c4a992db774678
  4. Affected versionversion=c0bfe34330b5fafdbbc63a7124841711651b96b9 <6597ff1d8de3f583be169587efeafd8af134e138
  5. Affected versionversion=c0bfe34330b5fafdbbc63a7124841711651b96b9 <843c0247cf21364e33bb5a8ffc9af57107d04d05

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.12; version=c0bfe34330b5fafdbbc63a7124841711651b96b9 <4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6; version=c0bfe34330b5fafdbbc63a7124841711651b96b9 <5edd564ccb002ffc830e7818c1c4a992db774678; version=c0bfe34330b5fafdbbc63a7124841711651b96b9 <6597ff1d8de3f583be169587efeafd8af134e138; version=c0bfe34330b5fafdbbc63a7124841711651b96b9 <843c0247cf21364e33bb5a8ffc9af57107d04d05

Published CVSS scores

5.5NIST NVDCVSS: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

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499Endpoint Denial of Service

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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