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CVE-2021-47466 is a resource-leak flaw in the Linux kernel SLUB allocator's kmem_cache_open() initialization error path. When creation of a SLUB cache fails, the cache's random_seq allocation may not be released. The upstream correction routes cleanup through __kmem_cache_release(), ensuring that all resources associated with the partially initialized cache are freed.
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Linux kernel SLUB allocator memory-leak flaw.
A Linux kernel memory-leak issue in the SLUB allocator's kmem_cache_open() path. The referenced assessment characterizes the impact as low, based on an error-path memory leak.
A moderate-severity Linux kernel resource/memory-leak vulnerability in kmem_cache_open() that can compromise system availability. It is rated CVSS 5.5 (local, low complexity, low privileges required, no user interaction, high availability impact).
A Linux kernel SLUB allocator memory-leak flaw in kmem_cache_open(). On an error path, a SLUB cache's random_seq resource may not be released. The issue was introduced in Linux kernel 4.8 and affects mm/slub.c.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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