Bug 2424872 (CVE-2025-68365)

Summary: CVE-2025-68365 kernel: fs/ntfs3: Initialize allocated memory before use
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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OS: Linux   
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Description OSIDB Bzimport 2025-12-24 11:02:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Initialize allocated memory before use

KMSAN reports: Multiple uninitialized values detected:

- KMSAN: uninit-value in ntfs_read_hdr (3)
- KMSAN: uninit-value in bcmp (3)

Memory is allocated by __getname(), which is a wrapper for
kmem_cache_alloc(). This memory is used before being properly
cleared. Change kmem_cache_alloc() to kmem_cache_zalloc() to
properly allocate and clear memory before use.
Comment 1 Alexander B 2025-12-25 16:25:22 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122459-CVE-2025-68365-4ad3@gregkh/T