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A validation flaw in the Linux kernel ring-buffer persistent metadata handling allowed the subbuffer-index array of a mapped ring buffer to contain duplicate entries. Although validation checked that each index was within the valid subbuffer range, it did not verify that each subbuffer was represented only once. The kernel could consequently construct its ring-buffer linked list using duplicate entries. A duplicate reader-page entry in the writer path can produce corrupted ring-buffer data, while duplicate entries on the writer side can corrupt the linked-list structure and potentially crash the kernel.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.