Bug 2393527 (CVE-2025-38737) - CVE-2025-38737 kernel: cifs: Fix oops due to uninitialised variable
Summary: CVE-2025-38737 kernel: cifs: Fix oops due to uninitialised variable
Keywords:
Status: NEW
Alias: CVE-2025-38737
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: 2025-09-05 18:04 UTC by OSIDB Bzimport
Modified: 2026-06-29 17:13 UTC (History)
2 users (show)

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

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:22854 0 None None None 2025-12-08 14:42:47 UTC
Red Hat Product Errata RHSA-2025:23009 0 None None None 2025-12-10 07:20:53 UTC

Description OSIDB Bzimport 2025-09-05 18:04:25 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cifs: Fix oops due to uninitialised variable

Fix smb3_init_transform_rq() to initialise buffer to NULL before calling
netfs_alloc_folioq_buffer() as netfs assumes it can append to the buffer it
is given.  Setting it to NULL means it should start a fresh buffer, but the
value is currently undefined.
Comment 1 Jon Moroney 2025-09-05 21:02:17 UTC Comment hidden (spam)
Comment 3 errata-xmlrpc 2025-12-08 14:42:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:22854 https://access.redhat.com/errata/RHSA-2025:22854
Comment 4 errata-xmlrpc 2025-12-10 07:20:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2025:23009 https://access.redhat.com/errata/RHSA-2025:23009
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