Bug 2401432 (CVE-2025-39933)

Summary:	CVE-2025-39933 kernel: smb: client: let recv_done verify data_offset, data_length and remaining_data_length
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2025-10-04 08:03:04 UTC

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

smb: client: let recv_done verify data_offset, data_length and remaining_data_length

This is inspired by the related server fixes.

Comment 1 Alexander B 2025-10-06 17:51:59 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100417-CVE-2025-39933-e224@gregkh/T

Comment 3 errata-xmlrpc 2026-01-19 03:08:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:0760 https://access.redhat.com/errata/RHSA-2026:0760

Comment 4 errata-xmlrpc 2026-01-19 03:48:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:0759 https://access.redhat.com/errata/RHSA-2026:0759

Comment 5 errata-xmlrpc 2026-01-19 11:41:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:0793 https://access.redhat.com/errata/RHSA-2026:0793