UBUNTU-CVE-2025-38570
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.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
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10 explicit affected versions
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14 explicit affected versions
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78 explicit affected versions
11 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/4b31bcb025cb497da2b01f87173108ff32d350d2
- https://git.kernel.org/stable/c/21d3f8441c7f317b93ba6a8029610c8b7e3773db
- https://git.kernel.org/stable/c/4b31bcb025cb497da2b01f87173108ff32d350d2
- https://git.kernel.org/stable/c/4b59f9deff3bdb52b223c85048f1d2924803b817
- https://ubuntu.com/security/CVE-2025-38570
- https://ubuntu.com/security/notices/USN-7879-1
- https://ubuntu.com/security/notices/USN-7879-2
- https://ubuntu.com/security/notices/USN-7879-3
- https://ubuntu.com/security/notices/USN-7879-4
- https://ubuntu.com/security/notices/USN-7880-1
- https://ubuntu.com/security/notices/USN-7934-1
- https://www.cve.org/CVERecord?id=CVE-2025-38570