CVE-2022-49095 scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()

Medium 5.5 Published Updated

A resource leak in the Linux kernel's zorro7xx SCSI driver can lead to memory exhaustion and denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2022-49095?

CVE-2022-49095 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

scsi: zorro7xx: Fix a resource leak in zorro7xx_remove_one()

The error handling path of the probe releases a resource that is not freed in the remove function. In some cases, a ioremap() must be undone.

Add the missing iounmap() call in the remove function.

Weakness: CWE-401

Which versions are affected by CVE-2022-49095?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49095?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-49095 being exploited?

There is no known exploitation of CVE-2022-49095 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49095, GHSA-8m49-9g53-w72p, UBUNTU-CVE-2022-49095.

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