CVE-2026-53190

Local resource leak via failed fence wait

Published Jun 25, 2026 · Updated Jun 25, 2026

Resource leak in Linux Kernel 6.5 and later allows local users to leak dma_fence references through failed virtio GPU fence waits. virtio_gpu_dma_fence_wait() returns from the unwrap loop after virtio_gpu_do_fence_wait() fails without releasing the cursor->chain reference acquired by dma_fence_unwrap_first(). Low-privileged local access and a failed wait during fence iteration are required; repeated triggers retain references, but no crash or hang is documented.

CVSS severity5.5
Medium
EPSS probability0.16%
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 Linux Kernel 6.5 and later allows local users to leak dma_fence references through failed virtio GPU fence waits. virtio_gpu_dma_fence_wait() returns from the unwrap loop after virtio_gpu_do_fence_wait() fails without releasing the cursor->chain reference acquired by dma_fence_unwrap_first(). Low-privileged local access and a failed wait during fence iteration are required; repeated triggers retain references, but no crash or hang is documented.

The record

CVE
CVE-2026-53190
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 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=6.5
  2. Affected versionversion=eba57fb5498f2858768321e64570caea188455b8 <3f26bb732cc136ab20176697c92f32c9c84cb125
  3. Affected versionversion=eba57fb5498f2858768321e64570caea188455b8 <73524e9f96a278b521f257a78a845c49eb522bc1
  4. Affected versionversion=eba57fb5498f2858768321e64570caea188455b8 <8348567a6afb24e2c9cafe8a321162d0eebe1411
  5. Affected versionversion=eba57fb5498f2858768321e64570caea188455b8 <898bd0ccfed71651b881660c5d20ad73b5203174
  6. Affected versionversion=eba57fb5498f2858768321e64570caea188455b8 <c0fffc874c264292e769f26194a2a5e66ce31810

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.5; version=eba57fb5498f2858768321e64570caea188455b8 <3f26bb732cc136ab20176697c92f32c9c84cb125; version=eba57fb5498f2858768321e64570caea188455b8 <73524e9f96a278b521f257a78a845c49eb522bc1; version=eba57fb5498f2858768321e64570caea188455b8 <8348567a6afb24e2c9cafe8a321162d0eebe1411; version=eba57fb5498f2858768321e64570caea188455b8 <898bd0ccfed71651b881660c5d20ad73b5203174; version=eba57fb5498f2858768321e64570caea188455b8 <c0fffc874c264292e769f26194a2a5e66ce31810

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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