CVE-2025-37995
module: ensure that kobject_put() is safe for module type kobjects
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Description
In the Linux kernel, the following vulnerability has been resolved: module: ensure that kobject_put() is safe for module type kobjects In 'lookup_or_create_module_kobject()', an internal kobject is created using 'module_ktype'. So call to 'kobject_put()' on error handling path causes an attempt to use an uninitialized completion pointer in 'module_kobject_release()'. In this scenario, we just want to release kobject without an extra synchronization required for a regular module unloading process, so adding an extra check whether 'complete()' is actually required makes 'kobject_put()' safe.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/31d8df3f303c3ae9115230820977ef8c35c88808
- https://git.kernel.org/stable/c/93799fb988757cdacf19acba57807746c00378e6
- https://git.kernel.org/stable/c/9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0dd
- https://git.kernel.org/stable/c/a63d99873547d8b39eb2f6db79dd235761e7098a
- https://git.kernel.org/stable/c/a6aeb739974ec73e5217c75a7c008a688d3d5cf1
References (10)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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