CVE-2025-39689: ftrace: Also allocate and copy hash for reading of filter files
Published Sep 5, 2025
·Updated
ftrace: Also allocate and copy hash for reading of filter files
Affected Software
14 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.96.2-2
Microsoft azl3 kernel 6.6.96.2-1
Linux Linux kernel>=4.12<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<6.12.44
Linux Linux kernel>=6.13<6.16.4
Linux Linux kernel=6.17-rc1
Linux Linux kernel=6.17-rc2
Debian Debian Linux=11.0
Microsoft cbl2 kernel 5.15.186.1-1
Event History
Sep 5, 2025
CVE Published
via MITRE·05:20 PM
Data Sourced
via MITRE·05:20 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 7, 2025
Data Sourced
via Microsoft·01:05 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-39689?
CVE-2025-39689 is classified as a moderate severity vulnerability in the Linux kernel.
2
How do I fix CVE-2025-39689?
To fix CVE-2025-39689, upgrade to the latest version of the Linux kernel that includes the patch for this vulnerability.
3
What is the impact of CVE-2025-39689?
CVE-2025-39689 may allow unauthorized access to elements of the ftrace subsystem affecting system security.
4
When was CVE-2025-39689 reported?
CVE-2025-39689 was reported in the context of ongoing improvements in the Linux kernel development.
5
Is CVE-2025-39689 present in all versions of the Linux kernel?
CVE-2025-39689 affects specific versions of the Linux kernel, and users should check their version against the fixed releases.