CVE-2024-26679 inet: read sk->sk_family once in inet_recv_error()

Medium 5.5 Published Updated

A race condition in the Linux kernel's inet_recv_error function can trigger a KCSAN warning, potentially leading to system instability or 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-2024-26679?

CVE-2024-26679 is a medium-severity vulnerability in Debian Debian Linux, published on 2 Apr 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:

inet: read sk->sk_family once in inet_recv_error()

inet_recv_error() is called without holding the socket lock.

IPv6 socket could mutate to IPv4 with IPV6_ADDRFORM socket option and trigger a KCSAN warning.

Weakness: CWE-667

Which versions are affected by CVE-2024-26679?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2024-26679?

Apply the vendor's patch.

Is CVE-2024-26679 being exploited?

There is no known exploitation of CVE-2024-26679 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as BELL-CVE-2024-26679, DEBIAN-CVE-2024-26679, GHSA-2vqj-rxh7-chjw, UBUNTU-CVE-2024-26679.

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