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CVE-2024-50094

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: sfc: Don't invoke xdp_do_flush() from netpoll.

Published Nov 5, 2024EPSS 0.46%

Overview

CVE-2024-50094 is a high-severity vulnerability. It was published on November 5, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

sfc: Don't invoke xdp_do_flush() from netpoll.

Yury reported a crash in the sfc driver originated from

netpoll_send_udp(). The netconsole sends a message and then netpoll

invokes the driver's NAPI function with a budget of zero. It is

dedicated to allow driver to free TX resources, that it may have used

while sending the packet.

In the netpoll case the driver invokes xdp_do_flush() unconditionally,

leading to crash because bpf_net_context was never assigned.

Invoke xdp_do_flush() only if budget is not zero.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/55e802468e1d38dec8e25a2fdb6078d45b647e8cRefgit.kernel.org/stable/c/65d4fc76d75c136744e67754d20feda609e7b793

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50094?

CVE-2024-50094 is a high-severity vulnerability. It was published on November 5, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-50094?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-50094?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-50094?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50094 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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