Null Pointer Dereference in Linux Kernel Affecting Parisc Architecture
CVE-2022-50415

5.5MEDIUM

Key Information:

Vendor

Linux

Status
Vendor
CVE Published:
18 September 2025

What is CVE-2022-50415?

A vulnerability in the Linux kernel for Parisc architecture involves a potential null pointer dereference during the execution of the start_task() function. This occurs when the create_singlethread_workqueue() function fails, resulting in a null return value that leads to dereferencing of a null pointer in subsequent calls, specifically when accessing workqueue flags. It is crucial to validate the return value to prevent this issue and ensure stable operation.

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Affected Version(s)

Linux 3499495205a676d85fcc2f3c28e35ec9b43c47e3

Linux 3499495205a676d85fcc2f3c28e35ec9b43c47e3

Linux 3499495205a676d85fcc2f3c28e35ec9b43c47e3

References

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.