CVE-2023-52677 riscv: Check if the code to patch lies in the exit section

Medium 5.5 Published Updated

A missing check in the RISC-V kernel allows a panic when patching code in the exit section, causing a 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-2023-52677?

CVE-2023-52677 is a medium-severity vulnerability in Linux kernel, published on 17 May 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:

riscv: Check if the code to patch lies in the exit section

Otherwise we fall through to vmalloc_to_page() which panics since the address does not lie in the vmalloc region.

Which versions are affected by CVE-2023-52677?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52677?

Apply the vendor's patch.

Is CVE-2023-52677 being exploited?

There is no known exploitation of CVE-2023-52677 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2023-52677, DEBIAN-CVE-2023-52677, GHSA-8g5c-5h6j-rxcw, ROOT-OS-DEBIAN-11-CVE-2023-52677, UBUNTU-CVE-2023-52677.

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