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CVE-2023-53373 is a use-after-free vulnerability in the Linux kernel crypto seqiv implementation. The seqiv request path treated EINPROGRESS as an asynchronous return condition but freed request-related data for other return values. Callers may enable MAY_BACKLOG, under which a backlogged cryptographic request can return EBUSY. Because EBUSY was not handled equivalently to EINPROGRESS, seqiv could prematurely free data still associated with the backlogged request.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
22 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel crypto seqiv error-handling flaw involving EBUSY conditions.
Linux kernel crypto seqiv error-handling flaw involving EBUSY handling.
Linux kernel crypto seqiv error-handling flaw involving EBUSY conditions.
Linux kernel crypto seqiv EBUSY error-handling flaw.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.