Linux Kernel up to 6.16.0 crypto sev-dev.c __sev_platform_init_locked uninitialized pointer

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.16.0. The affected element is the function __sev_platform_init_locked of the file drivers/crypto/ccp/sev-dev.c of the component crypto. Executing a manipulation can lead to uninitialized pointer. This vulnerability is tracked as CVE-2025-39729. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.16.0 and classified as critical. This vulnerability affects the function __sev_platform_init_locked of the file drivers/crypto/ccp/sev-dev.c of the component crypto. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. The CWE definition for the vulnerability is CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix dereferencing uninitialized error pointer Fix below smatch warnings: drivers/crypto/ccp/sev-dev.c:1312 __sev_platform_init_locked() error: we previously assumed 'error' could be null

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2025-39729 since 04/16/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 264346 (Linux Distros Unpatched Vulnerability : CVE-2025-39729), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.16.1 or 6.17-rc1 eliminates this vulnerability. Applying the patch 841634e1fdc2bdf35ab851fc279fd3bedcdf5e93/0fa766726c091ff0ec7d26874f6e4724d23ecb0e 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 (264346) and CERT Bund (WID-SEC-2025-1988). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • NetApp FAS
  • NetApp AFF
  • NetApp ActiveIQ Unified Manager
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Microsoft Azure
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM
  • IBM Security Verify Access
  • Dell NetWorker

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

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

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
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: 264346
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39729

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.16.1/6.17-rc1
Patch: 841634e1fdc2bdf35ab851fc279fd3bedcdf5e93/0fa766726c091ff0ec7d26874f6e4724d23ecb0e

Timelineinfo

04/16/2025 CVE reserved
09/07/2025 +144 days Advisory disclosed
09/07/2025 +0 days VulDB entry created
02/09/2026 +155 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39729 (🔒)
GCVE (CVE): GCVE-0-2025-39729
GCVE (VulDB): GCVE-100-323032
CERT Bund: WID-SEC-2025-1988 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/07/2025 18:31
Updated: 02/09/2026 21:00
Changes: 09/07/2025 18:31 (60), 09/12/2025 22:52 (2), 11/26/2025 23:24 (10), 11/27/2025 23:29 (7), 01/03/2026 15:02 (1), 01/25/2026 12:28 (1), 02/09/2026 21:00 (1)
Complete: 🔍
Cache ID: 216::103

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