CVE-2022-49375 rtc: mt6397: check return value after calling platform_get_resource()

Medium 5.5 Published Updated

A missing null check in the Linux kernel RTC driver can cause a null pointer dereference, leading to a system crash.

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-2022-49375?

CVE-2022-49375 is a medium-severity 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:

rtc: mt6397: check return value after calling platform_get_resource()

It will cause null-ptr-deref if platform_get_resource() returns NULL, we need check the return value.

Weakness: CWE-476

Which versions are affected by CVE-2022-49375?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49375?

Apply the vendor's patch.

Is CVE-2022-49375 being exploited?

There is no known exploitation of CVE-2022-49375 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49375, GHSA-9jjw-6883-wqjh, UBUNTU-CVE-2022-49375.

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