Ubuntu: Security Advisory (USN-7769-3)

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CVE-2025-38076

In the Linux kernel, the following vulnerability has been resolved: alloctag: allocate percpu counters for module tags dynamically When a module gets unloaded it checks whether any of its tags are still in use and if so, we keep the memory containing module's allocation tags alive until all tags...

CVE-2025-38076

In the Linux kernel, the following vulnerability has been resolved: alloctag: allocate percpu counters for module tags dynamically When a module gets unloaded it checks whether any of its tags are still in use and if so, we keep the memory containing module's allocation tags alive until all tags...

CVE-2025-38076 alloc_tag: allocate percpu counters for module tags dynamically

In the Linux kernel, the following vulnerability has been resolved: alloctag: allocate percpu counters for module tags dynamically When a module gets unloaded it checks whether any of its tags are still in use and if so, we keep the memory containing module's allocation tags alive until all tags...

CVE-2025-38076

CVE-2025-38076 concerns the Linux kernel vulnerability related to module unloading and allocation tags. The issue arises from a use-after-free risk when memory containing a module’s allocation tags remains alive after unloading, because percpu counters referenced by those tags could be freed by f...