CVE-2025-38737: cifs: Fix oops due to uninitialised variable

Published Sep 5, 2025
·
Updated

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

cifs: Fix oops due to uninitialised variable

Fix smb3inittransformrq() to initialise buffer to NULL before calling netfsallocfolioqbuffer() 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.

Affected Software

5 affected components
Linux Linux kernel
Linux Linux kernel>=6.12<6.12.44
Linux Linux kernel>=6.13<6.16.4
Linux Linux kernel=6.17-rc1
Linux Linux kernel=6.17-rc2

Event History

Sep 5, 2025
CVE Published
via MITRE·05:20 PM
Data Sourced
via MITRE·05:20 PM
DescriptionSeverity
Data Sourced
via Red Hat·06:04 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 8, 58546
Event
via MITRE·09:17 PM

Frequently Asked Questions

1

What is the severity of CVE-2025-38737?

CVE-2025-38737 is considered to have a moderate severity due to the potential for system instability.

2

How do I fix CVE-2025-38737?

To fix CVE-2025-38737, ensure you update your Linux kernel to the latest patched version provided by your distribution.

3

What issues does CVE-2025-38737 address?

CVE-2025-38737 addresses an issue with the CIFS module in the Linux kernel where an uninitialized variable can cause a system crash.

4

Which versions of the Linux kernel are affected by CVE-2025-38737?

CVE-2025-38737 affects all versions of the Linux kernel that do not include the fix for this vulnerability.

5

Is CVE-2025-38737 remotely exploitable?

CVE-2025-38737 is not directly remotely exploitable but can lead to system crashes under certain conditions.

Contact

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