CVE-2025-71232
Description
A memory leak flaw was found in the Linux kernel's qla2xxx Fibre Channel driver. In error handling paths, the driver fails to free the SCSI request packet (sp) structure, leaving objects in the qla2xxx_srbs slab cache. When the module is unloaded, kmem_cache_destroy() fails because objects remain in the cache, triggering a kernel warning and potentially causing system instability.
Statement
This flaw affects systems with QLogic Fibre Channel HBAs using the qla2xxx driver. The memory leak accumulates during error conditions and manifests as a crash or warning during driver module unload. Normal operation without module unload cycling is not directly affected.
Mitigation
To mitigate this issue, prevent the qla2xxx module from being loaded. See https://access.redhat.com/solutions/41278 for instructions on how to blacklist kernel modules.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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