CVE-2023-53316

Local kernel memory corruption via premature DP teardown

Published Sep 16, 2025 · Updated Sep 16, 2025

Use-after-free in the Linux kernel's DRM/MSM DisplayPort driver allows local users to corrupt kernel memory during controller removal. In dp_display_remove(), the driver deinitializes DP submodules before component_del() invokes dp_display_unbind(), which then dereferences freed submodule state. The path requires a Qualcomm MSM DisplayPort controller to be removed; triggering it can crash the kernel or corrupt privileged kernel state.

CVSS severity7.8
High
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

Use-after-free in the Linux kernel's DRM/MSM DisplayPort driver allows local users to corrupt kernel memory during controller removal. In dp_display_remove(), the driver deinitializes DP submodules before component_del() invokes dp_display_unbind(), which then dereferences freed submodule state. The path requires a Qualcomm MSM DisplayPort controller to be removed; triggering it can crash the kernel or corrupt privileged kernel state.

The record

CVE
CVE-2023-53316
Published
Sep 16, 2025
Updated
Sep 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2025Record 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=5.10
  2. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <3c3f3d35f5e05c468b048eb42a4f8c62c6655692
  3. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <4e9f1a2367aea7d61f6781213e25313cd983b0d7
  4. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <5c3278db06e332fdc14f3f297499fb88ded264d2
  5. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <c67a55f7cc8d767d624235bf1bcd0947e56abe0f
  6. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <ca47d0dc00968358c136a1847cfed550cedfd1b5
  7. Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <fa0048a4b1fa7a50c8b0e514f5b428abdf69a6f8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=c943b4948b5848fc0e07f875edbd35a973879e22 <3c3f3d35f5e05c468b048eb42a4f8c62c6655692; version=c943b4948b5848fc0e07f875edbd35a973879e22 <4e9f1a2367aea7d61f6781213e25313cd983b0d7; version=c943b4948b5848fc0e07f875edbd35a973879e22 <5c3278db06e332fdc14f3f297499fb88ded264d2; version=c943b4948b5848fc0e07f875edbd35a973879e22 <c67a55f7cc8d767d624235bf1bcd0947e56abe0f; version=c943b4948b5848fc0e07f875edbd35a973879e22 <ca47d0dc00968358c136a1847cfed550cedfd1b5; version=c943b4948b5848fc0e07f875edbd35a973879e22 <fa0048a4b1fa7a50c8b0e514f5b428abdf69a6f8

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-416Use After Free
T1068Exploitation for Privilege Escalation

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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