CVE-2025-39977: futex: Prevent use-after-free during requeue-PI
Published Oct 15, 2025
·Updated
futex: Prevent use-after-free during requeue-PI
Affected Software
3 affected componentsFixes available
Event History
Oct 15, 2025
CVE Published
via MITRE·07:55 AM
Data Sourced
via MITRE·07:55 AM
DescriptionSeverity
Data Sourced
via NVD·08:15 AM
DescriptionSeverity
Oct 16, 2025
Data Sourced
via Microsoft·01:03 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·01:03 AM
Affected Software
Updated
via Microsoft·01:03 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2025-39977?
CVE-2025-39977 has been classified with a medium severity due to its potential to cause a use-after-free vulnerability.
2
How do I fix CVE-2025-39977?
To fix CVE-2025-39977, it is recommended to update to the latest version of the Linux kernel that addresses this vulnerability.
3
What is the impact of CVE-2025-39977?
CVE-2025-39977 can lead to potential system instability or exploitation through a use-after-free error in the futex subsystem.
4
Is CVE-2025-39977 exploitable in production environments?
Yes, CVE-2025-39977 can be exploited in production environments, making it crucial to apply patches promptly.
5
What versions of the Linux kernel are affected by CVE-2025-39977?
All versions of the Linux kernel prior to the fix for CVE-2025-39977 are potentially affected.