CVE-2025-38570

HighCVSS 7.8/10Last modified Jul 30, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 557d02238e05eb66b9aba9a1f90f3a2131c6c887, < 21d3f8441c7f317b93ba6a8029610c8b7e3773db; >= 557d02238e05eb66b9aba9a1f90f3a2131c6c887, < 4b59f9deff3bdb52b223c85048f1d2924803b817; >= 557d02238e05eb66b9aba9a1f90f3a2131c6c887, < 4b31bcb025cb497da2b01f87173108ff32d350d2
LinuxLinux6.14

References

Timeline

Published
Aug 19, 2025
Last modified
Jul 30, 2026
NVD status
Modified

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CVE-2025-38570: High severity, CVSS 7.8 | Vulnix