CVE-2023-53002

Local denial of service via mmap offset leak

Published Mar 27, 2025 · Updated May 11, 2026

Memory leak in the Linux kernel i915 driver 5.7 through 6.1.8 allows local users to exhaust kernel memory via reused mmap offsets. The i915 mmap_offset path calls drm_vma_node_allow() on every request even when a client reuses an existing offset, while revoke runs only once. Any local user with access to an Intel i915 DRM device can keep the per-file vm_count nonzero, leak its rbtree entry, and exhaust kernel memory until service interruption.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel i915 driver 5.7 through 6.1.8 allows local users to exhaust kernel memory via reused mmap offsets. The i915 mmap_offset path calls drm_vma_node_allow() on every request even when a client reuses an existing offset, while revoke runs only once. Any local user with access to an Intel i915 DRM device can keep the per-file vm_count nonzero, leak its rbtree entry, and exhaust kernel memory until service interruption.

The record

CVE
CVE-2023-53002
Published
Mar 27, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=5.7
  2. Affected versionversion=7865559872074a9ab169c87915504661d630addf <0220e4fe178c3390eb0291cdb34912d66972db8a
  3. Affected versionversion=7865559872074a9ab169c87915504661d630addf <0bdc4b4ba7206c452ee81c82fa66e39d0e1780fb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.7; version=7865559872074a9ab169c87915504661d630addf <0220e4fe178c3390eb0291cdb34912d66972db8a; version=7865559872074a9ab169c87915504661d630addf <0bdc4b4ba7206c452ee81c82fa66e39d0e1780fb

Published CVSS scores

5.5CISA-ADPCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-401Missing Release of Memory after Effective Lifetime
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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