Linux Kernel up to 6.12.44/6.16.4/6.17-rc3 xe_vm_free_scratch null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.12.44/6.16.4/6.17-rc3. This impacts the function xe_vm_free_scratch. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2025-39811. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.44/6.16.4/6.17-rc3. It has been declared as critical. Affected by this vulnerability is the function xe_vm_free_scratch. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: Clear the scratch_pt pointer on error Avoid triggering a dereference of an error pointer on cleanup in xe_vm_free_scratch() by clearing any scratch_pt error pointer. (cherry picked from commit 358ee50ab565f3c8ea32480e9d03127a81ba32f8)

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-39811 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 265242 (Linux Distros Unpatched Vulnerability : CVE-2025-39811), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.45, 6.16.5 or 6.17-rc4 eliminates this vulnerability. Applying the patch c8277d229c7840e8090d4704e50f2ca014d194c7/84603ed1d73ebb8de856dc11f4f5d3541c48f7a2/2b55ddf36229e0278c956215784ab1feeff510aa 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 (265242) and CERT Bund (WID-SEC-2025-2077). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 265242
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39811

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.45/6.16.5/6.17-rc4
Patch: c8277d229c7840e8090d4704e50f2ca014d194c7/84603ed1d73ebb8de856dc11f4f5d3541c48f7a2/2b55ddf36229e0278c956215784ab1feeff510aa

Timelineinfo

04/16/2025 CVE reserved
09/16/2025 +153 days Advisory disclosed
09/16/2025 +0 days VulDB entry created
12/27/2025 +102 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39811 (🔒)
GCVE (CVE): GCVE-0-2025-39811
GCVE (VulDB): GCVE-100-324421
CERT Bund: WID-SEC-2025-2077 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/16/2025 16:00
Updated: 12/27/2025 13:13
Changes: 09/16/2025 16:00 (58), 09/19/2025 01:45 (2), 10/21/2025 07:59 (7), 12/03/2025 05:26 (10), 12/27/2025 13:13 (1)
Complete: 🔍
Cache ID: 216::103

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