CVE-2024-46748 cachefiles: Set the max subreq size for cache writes to MAX_RW_COUNT

Medium 5.5 Published Updated

An integer overflow in the Linux kernel cachefiles subsystem can cause write overruns, potentially leading to 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-2024-46748?

CVE-2024-46748 is a medium-severity vulnerability in Linux kernel, published on 18 Sep 2024. 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:

cachefiles: Set the max subreq size for cache writes to MAX_RW_COUNT

Set the maximum size of a subrequest that writes to cachefiles to be MAX_RW_COUNT so that we don't overrun the maximum write we can make to the backing filesystem.

Which versions are affected by CVE-2024-46748?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46748?

Apply the vendor's patch.

Is CVE-2024-46748 being exploited?

There is no known exploitation of CVE-2024-46748 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-46748, DEBIAN-CVE-2024-46748, GHSA-p5v6-vwvg-823j, ROOT-OS-DEBIAN-12-CVE-2024-46748, ROOT-OS-UBUNTU-2204-CVE-2024-46748, ROOT-OS-UBUNTU-2404-CVE-2024-46748 and 1 more.

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