Linux Kernel up to 6.18.15/6.19.5 drm_gem_shmem_purge_locked privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.18.15/6.19.5. The affected element is the function drm_gem_shmem_purge_locked. The manipulation results in an unknown weakness. This vulnerability is reported as CVE-2025-71296. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.18.15/6.19.5. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around purge Acquire and release the GEM object's reservation lock around calls to the object's purge operation. The tests use drm_gem_shmem_purge_locked(), which led to errors such as show below. [ 58.709128] WARNING: CPU: 1 PID: 1354 at drivers/gpu/drm/drm_gem_shmem_helper.c:515 drm_gem_shmem_purge_locked+0x51c/0x740 Only export the new helper drm_gem_shmem_purge() for Kunit tests. This is not an interface for regular drivers.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2025-71296 since 05/06/2026. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/08/2026).

The vulnerability scanner Nessus provides a plugin with the ID 313619 (Linux Distros Unpatched Vulnerability : CVE-2025-71296), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.18.16 or 6.19.6 eliminates this vulnerability. Applying the patch cdf8bbbd9017adcfb91ad9a902198d4b507719a9/8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f/3f41307d589c2f25d556d47b165df808124cd0c4 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (313619) and CERT Bund (WID-SEC-2026-1454). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Microsoft Azure Linux
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 313619
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71296

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.16/6.19.6
Patch: cdf8bbbd9017adcfb91ad9a902198d4b507719a9/8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f/3f41307d589c2f25d556d47b165df808124cd0c4

Timelineinfo

05/06/2026 CVE reserved
05/08/2026 +2 days Advisory disclosed
05/08/2026 +0 days VulDB entry created
07/08/2026 +61 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71296 (🔒)
GCVE (CVE): GCVE-0-2025-71296
GCVE (VulDB): GCVE-100-362082
CERT Bund: WID-SEC-2026-1454 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/08/2026 16:13
Updated: 07/08/2026 12:51
Changes: 05/08/2026 16:13 (57), 05/10/2026 00:51 (2), 05/17/2026 23:36 (10), 06/15/2026 16:28 (7), 07/08/2026 12:51 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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