Bug 2405771 (CVE-2023-53697)

Summary: CVE-2023-53697 kernel: nvdimm: Fix memleak of pmu attr_groups in unregister_nvdimm_pmu()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-10-22 14:06:00 UTC 
In the Linux kernel, the following vulnerability has been resolved:

nvdimm: Fix memleak of pmu attr_groups in unregister_nvdimm_pmu()

Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
'unregister_nvdimm_pmu'.
Comment 1 Jon Moroney 2025-10-22 16:14:52 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102211-CVE-2023-53697-3078@gregkh/T