CVE-2026-93195

Use-after-free via missing AUX channel cleanup

Published Sep 17, 2026 · Updated Sep 17, 2026

Missing AUX cleanup in Linux 6.18 allows attackers to cause resource leaks or use-after-free via DisplayPort driver teardown. The Synopsys dw-dp bridge registers the AUX adapter in dw_dp_bind() without providing the corresponding unregister operation during cleanup. Exposure requires the affected DisplayPort driver; public records do not specify an attacker-controlled trigger or whether resulting instability causes a crash or hang.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing AUX cleanup in Linux 6.18 allows attackers to cause resource leaks or use-after-free via DisplayPort driver teardown. The Synopsys dw-dp bridge registers the AUX adapter in dw_dp_bind() without providing the corresponding unregister operation during cleanup. Exposure requires the affected DisplayPort driver; public records do not specify an attacker-controlled trigger or whether resulting instability causes a crash or hang.

The record

CVE
CVE-2026-93195
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-772
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=6.18
  2. Affected versionversion=86eecc3a9c2e06462f6a273fcd24150b6da787de <48aaa495e24ce5aec3dc56706473b0bd4305a306
  3. Affected versionversion=86eecc3a9c2e06462f6a273fcd24150b6da787de <b2bec2d4a769d5b7b8202123404c7cd1aec17861
  4. Affected versionversion=86eecc3a9c2e06462f6a273fcd24150b6da787de <ed04e8e2307f35b3d8d49a554faf5e72d3d224e6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.18; version=86eecc3a9c2e06462f6a273fcd24150b6da787de <48aaa495e24ce5aec3dc56706473b0bd4305a306; version=86eecc3a9c2e06462f6a273fcd24150b6da787de <b2bec2d4a769d5b7b8202123404c7cd1aec17861; version=86eecc3a9c2e06462f6a273fcd24150b6da787de <ed04e8e2307f35b3d8d49a554faf5e72d3d224e6

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.8Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/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.

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

CWE-772Missing Release of Resource after Effective Lifetime

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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