2389492 – (CVE-2025-38570) CVE-2025-38570 kernel: eth: fbnic: unlink NAPIs from queues on error to open

Bug 2389492 (CVE-2025-38570) - CVE-2025-38570 kernel: eth: fbnic: unlink NAPIs from queues on error to open

Summary: CVE-2025-38570 kernel: eth: fbnic: unlink NAPIs from queues on error to open

Keywords:
Status:	NEW
Alias:	CVE-2025-38570
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-08-19 18:03 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:45 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-08-19 18:03:52 UTC

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.

Comment 1 Jon Moroney 2025-08-19 22:24:18 UTC Comment hidden (spam)

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