CVE-2023-53280
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2023-53280 is a vulnerability in the Linux kernel affecting the SCSI qla2xxx driver. The issue was discovered and reported on September 16, 2025, involving an uninitialized wait queue that can lead to system crashes (NVD).

Technical details

The vulnerability occurs when qla2x00startsp(sp) returns error code EGAIN and wakeup gets called for an uninitialized wait queue sp->nvmelswaitq. This results in a NULL pointer dereference at address 0x0000000000000000, causing a system crash. The issue specifically affects the nvmels_waitq wait queue logic that was previously removed (NVD).

Impact

When exploited, this vulnerability causes a system crash through a NULL pointer dereference, particularly affecting systems using the qla2xxx SCSI driver. The issue has been observed on HPE ProLiant DL360 Gen10 systems (NVD).

Mitigation and workarounds

The vulnerability has been resolved by removing the unused nvmelswaitq wait queue. The fix addresses the underlying issue where the nvmelswaitq logic was previously removed but some references remained (NVD).

Additional resources


SourceThis report was generated using AI

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