CVE-2025-21962: cifs: Fix integer overflow while processing closetimeo mount option

Published Apr 1, 2025
·
Updated

cifs: Fix integer overflow while processing closetimeo mount option

Affected Software

17 affected componentsFixes available
Linux Kernel
Linux Linux kernel>=5.15.107<5.15.180
Linux Linux kernel>=6.0<6.1.132
Linux Linux kernel>=6.2<6.6.84
Linux Linux kernel>=6.7<6.12.20
Linux Linux kernel>=6.13<6.13.8
Linux Linux kernel=6.14-rc1
Linux Linux kernel=6.14-rc2
Linux Linux kernel=6.14-rc3
Linux Linux kernel=6.14-rc4
Linux Linux kernel=6.14-rc5
Linux Linux kernel=6.14-rc6
Microsoft cbl2 kernel 5.15.176.3-3
Microsoft azl3 kernel 6.6.85.1-2
Microsoft cbl2 kernel 5.15.180.1-1
Microsoft cbl2 kernel 5.15.176.3-3
Microsoft azl3 kernel 6.6.82.1-1

Event History

Apr 1, 2025
CVE Published
via MITRE·03:46 PM
Data Sourced
via MITRE·03:46 PM
Description
Data Sourced
via Red Hat·04:03 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
May 5, 2025
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
SeverityAffected Software
Updated
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2025-21962?

CVE-2025-21962 has been classified with a moderate severity level due to the potential for integer overflow exploiting the closetimeo mount option.

2

How do I fix CVE-2025-21962?

To fix CVE-2025-21962, update your Linux kernel to the latest version that includes the patch for the integer overflow vulnerability.

3

Which versions of the Linux Kernel are affected by CVE-2025-21962?

CVE-2025-21962 affects multiple versions of the Linux Kernel that have not implemented the fix for the closetimeo mount option vulnerability.

4

What are the impacts of exploiting CVE-2025-21962?

Exploiting CVE-2025-21962 could lead to system instability or unauthorized access depending on the context in which the vulnerability is exploited.

5

Who is responsible for patching CVE-2025-21962?

The responsibility for patching CVE-2025-21962 lies with system administrators and users of affected Linux Kernel versions.

Contact

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