Bug 2393731 (CVE-2025-39730) - CVE-2025-39730 kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()
Summary: CVE-2025-39730 kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()
Keywords:
Status: NEW
Alias: CVE-2025-39730
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-07 16:01 UTC by OSIDB Bzimport
Modified: 2025-10-06 21:36 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:17397 0 None None None 2025-10-06 21:36:09 UTC
Red Hat Product Errata RHSA-2025:17398 0 None None None 2025-10-06 15:38:41 UTC

Description OSIDB Bzimport 2025-09-07 16:01:12 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()

The function needs to check the minimal filehandle length before it can
access the embedded filehandle.
Comment 1 Mauro Matteo Cascella 2025-09-09 08:14:41 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39730-72c9@gregkh/T
Comment 2 errata-xmlrpc 2025-10-06 15:38:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:17398 https://access.redhat.com/errata/RHSA-2025:17398
Comment 3 errata-xmlrpc 2025-10-06 21:36:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:17397 https://access.redhat.com/errata/RHSA-2025:17397
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