2401424 – (CVE-2025-39943) CVE-2025-39943 kernel: ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

Bug 2401424 (CVE-2025-39943) - CVE-2025-39943 kernel: ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

Summary: CVE-2025-39943 kernel: ksmbd: smbdirect: validate data_offset and data_length...

Keywords:
Status:	NEW
Alias:	CVE-2025-39943
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:	2025-10-04 08:02 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:32 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-10-04 08:02:31 UTC

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer

If data_offset and data_length of smb_direct_data_transfer struct are
invalid, out of bounds issue could happen.
This patch validate data_offset and data_length field in recv_done.

Comment 1 Jon Moroney 2025-10-06 15:50:57 UTC Comment hidden (spam)

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