CVE-2026-53145

Kernel code execution via DRM handle race

Published Jun 25, 2026 · Updated Jun 25, 2026

A race condition in Linux Kernel 6.18.32 through 6.18.35 and 7.0.9 through 7.0.12 allows local users to execute code in kernel mode. The gem_change_handle path confuses new and old handles, replaces the wrong IDR slot, and lets a concurrent gem_close steal the object's inherited reference. A low-privileged process needs access to a DRM render device and must race GEM_CHANGE_HANDLE against GEM_CLOSE; the resulting dangling object permits kernel memory corruption or a kernel crash.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in Linux Kernel 6.18.32 through 6.18.35 and 7.0.9 through 7.0.12 allows local users to execute code in kernel mode. The gem_change_handle path confuses new and old handles, replaces the wrong IDR slot, and lets a concurrent gem_close steal the object's inherited reference. A low-privileged process needs access to a DRM render device and must race GEM_CHANGE_HANDLE against GEM_CLOSE; the resulting dangling object permits kernel memory corruption or a kernel crash.

The record

CVE
CVE-2026-53145
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-367, T1068
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=0dfa42cfe4dbe114533480503934f43e33c1e83d
  2. Affected versionversion=318b995cffcfcaa69a234d28123a3f4ae186a9df
  3. Affected versionversion=38f12d0e10d83b66fa1466400d876a3a8da31542
  4. Affected versionversion=5e28b7b94408897e41c63477aabc9e1db439bc8c <1a4f03d22fb655e5f192244fb2c87d8066fcfca2
  5. Affected versionversion=6.18.32 <6.18.36
  6. Affected versionversion=61bd96d3e5472c253f9c1ab77608f0c8aaa9d025 <1d9b93df7fc768228906e24220591ec1cddad391
  7. Affected versionversion=672464dd53231509c9c771110798c56d4660e19e <c0639ede2f24ac224b2079cd35ecd5fd8ad4e3cd
  8. Affected versionversion=7.0.9 <7.0.13
  9. Affected versionversion=cde2c9257cbe8463b9dcf7b1075177b72b5fd938

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0dfa42cfe4dbe114533480503934f43e33c1e83d; version=318b995cffcfcaa69a234d28123a3f4ae186a9df; version=38f12d0e10d83b66fa1466400d876a3a8da31542; version=5e28b7b94408897e41c63477aabc9e1db439bc8c <1a4f03d22fb655e5f192244fb2c87d8066fcfca2; version=6.18.32 <6.18.36; version=61bd96d3e5472c253f9c1ab77608f0c8aaa9d025 <1d9b93df7fc768228906e24220591ec1cddad391; version=672464dd53231509c9c771110798c56d4660e19e <c0639ede2f24ac224b2079cd35ecd5fd8ad4e3cd; version=7.0.9 <7.0.13; version=cde2c9257cbe8463b9dcf7b1075177b72b5fd938

Published CVSS scores

7.0Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Linux kernel CNACVSS: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-367Time-of-check Time-of-use (TOCTOU) Race Condition
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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