CVE-2025-39756: fs: Prevent file descriptor table allocations exceeding INT_MAX
Published Sep 11, 2025
·Updated
fs: Prevent file descriptor table allocations exceeding INTMAX
Affected Software
11 affected componentsFixes available
Linux Kernel
Microsoft azl3 kernel 6.6.96.2-2
Linux Linux kernel>=2.6.25<5.4.297
Linux Linux kernel>=5.5<5.10.241
Linux Linux kernel>=5.11<5.15.190
Linux Linux kernel>=5.16<6.1.149
Linux Linux kernel>=6.2<6.6.103
Linux Linux kernel>=6.7<6.12.43
Linux Linux kernel>=6.13<6.15.11
Linux Linux kernel>=6.16<6.16.2
Debian Debian Linux=11.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Patch a8b627a
Event History
Sep 11, 2025
CVE Published
via MITRE·04:52 PM
Data Sourced
via MITRE·04:52 PM
Description
Data Sourced
via NVD·05:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 13, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·08:01 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2025-39756?
CVE-2025-39756 is classified as a high-severity vulnerability in the Linux kernel.
2
How do I fix CVE-2025-39756?
To fix CVE-2025-39756, update the Linux kernel to the latest version where the vulnerability has been patched.
3
What systems are affected by CVE-2025-39756?
CVE-2025-39756 affects the Linux kernel and can impact systems that utilize file descriptors extensively.
4
What is the impact of CVE-2025-39756?
The vulnerability can lead to excessive file descriptor allocations, potentially causing denial of service.
5
Is CVE-2025-39756 actively exploited?
As of now, there is no public information suggesting that CVE-2025-39756 is actively being exploited in the wild.