CVE-2025-38570 Information

Aug 20, 2025 cve

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.

Reference

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

CNNVD-202508-2136 (Published: 2025-08-19)

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