CVE-2025-39940: dm-stripe: fix a possible integer overflow
dm-stripe: fix a possible integer overflow
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
In stripe_io_hints, detect integer overflow for large chunk sizes and do not set limits->io_min or limits->io_opt when overflow occurs.
dm-stripe limits->io_min and limits->io_opt = unset when integer overflow occurs
Event History
Frequently Asked Questions
What is the severity of CVE-2025-39940?
CVE-2025-39940 has been classified with a severity level that indicates it poses a potential risk due to an integer overflow in the Linux kernel.
How do I fix CVE-2025-39940?
To fix CVE-2025-39940, you should update the Linux kernel to the latest version where this vulnerability has been addressed.
Who is affected by CVE-2025-39940?
CVE-2025-39940 affects users and systems running vulnerable versions of the Linux kernel that utilize the dm-stripe module.
What kind of vulnerability is CVE-2025-39940?
CVE-2025-39940 is an integer overflow vulnerability that can occur in stripe_io_hints with excessively large chunk sizes.
What are the potential impacts of CVE-2025-39940?
The potential impacts of CVE-2025-39940 include system instability or unauthorized access if the integer overflow is exploited.