Linux Kernel up to 6.1.1 ACPI acpi_fetch_acpi_dev null pointer dereference

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.4.296/5.10.240/5.15.189/6.0.15/6.1.1. It has been rated as critical. This vulnerability affects the function acpi_fetch_acpi_dev of the component ACPI. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2022-50327. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.296/5.10.240/5.15.189/6.0.15/6.1.1. It has been rated as critical. This issue affects the function acpi_fetch_acpi_dev of the component ACPI. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value The return value of acpi_fetch_acpi_dev() could be NULL, which would cause a NULL pointer dereference to occur in acpi_device_hid(). [ rjw: Subject and changelog edits, added empty line after if () ]

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2022-50327 since 09/15/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 275594 (SUSE SLES15 Security Update : kernel (SUSE-SU-2025:4111-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.297, 5.10.241, 5.15.190, 6.0.16 or 6.1.2 eliminates this vulnerability. Applying the patch 8e8b5f12ee4ab6f5d252c9ca062a4ada9554e6d9/fdee7a0acc566c4194d40a501b8a1584e86cc208/ad1190744da9d812da55b76f2afce750afb0a3bd/2ecd629c788bbfb96be058edade2e934d3763eaf/b85f0e292f73f353eea915499604fbf50c8238b4/2437513a814b3e93bd02879740a8a06e52e2cf7d 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 (275594) and CERT Bund (WID-SEC-2025-2053). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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
  • F5 F5OS

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 275594
Nessus Name: SUSE SLES15 Security Update : kernel (SUSE-SU-2025:4111-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.297/5.10.241/5.15.190/6.0.16/6.1.2
Patch: 8e8b5f12ee4ab6f5d252c9ca062a4ada9554e6d9/fdee7a0acc566c4194d40a501b8a1584e86cc208/ad1190744da9d812da55b76f2afce750afb0a3bd/2ecd629c788bbfb96be058edade2e934d3763eaf/b85f0e292f73f353eea915499604fbf50c8238b4/2437513a814b3e93bd02879740a8a06e52e2cf7d

Timelineinfo

09/15/2025 Advisory disclosed
09/15/2025 +0 days CVE reserved
09/15/2025 +0 days VulDB entry created
01/16/2026 +123 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50327 (🔒)
GCVE (CVE): GCVE-0-2022-50327
GCVE (VulDB): GCVE-100-324107
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 18:22
Updated: 01/16/2026 22:33
Changes: 09/15/2025 18:22 (59), 11/18/2025 19:36 (2), 12/28/2025 18:47 (7), 01/10/2026 18:36 (1), 01/16/2026 22:33 (10)
Complete: 🔍
Cache ID: 216::103

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