CVE-2025-38570

eth: fbnic: unlink NAPIs from queues on error to open

Description

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: unlink NAPIs from queues on error to open CI hit a UaF in fbnic in the AF_XDP portion of the queues.py test. The UaF is in the __sk_mark_napi_id_once() call in xsk_bind(), NAPI has been freed. Looks like the device failed to open earlier, and we lack clearing the NAPI pointer from the queue.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/21d3f8441c7f317b93ba6a8029610c8b7e3773db
https://git.kernel.org/stable/c/4b59f9deff3bdb52b223c85048f1d2924803b817
https://git.kernel.org/stable/c/4b31bcb025cb497da2b01f87173108ff32d350d2

Frequently Asked Questions

What is the severity of CVE-2025-38570?: CVE-2025-38570 has not yet been assigned a CVSS score.
How to fix CVE-2025-38570?: To fix CVE-2025-38570, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38570 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38570 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38570?: CVE-2025-38570 affects Linux Linux, Linux Linux.

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