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CVE-2024-26659 is a use-after-free vulnerability in the Linux kernel xHCI USB host-controller driver’s handling of isochronous-transfer Babble and Buffer Overrun events. The driver incorrectly assumes that an error reported for an early Transfer Request Block (TRB) means the xHCI controller has relinquished ownership of the full multi-TRB transfer descriptor (TD), and releases the TD. The controller can still process remaining TRBs and subsequently report completion for the final IOC-marked TRB, allowing the released TD or its constituent TRBs to have been freed or overwritten. The fix applies the established isochronous Transaction Error processing logic to these events and corrects transfer-length reporting for Babble errors.
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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.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A locally exploitable vulnerability requiring low privileges that can cause high availability impact, with no stated confidentiality or integrity impact.
Linux kernel xHCI USB-controller error-handling flaw involving isochronous Babble and Buffer Overrun events.
Linux kernel xHCI USB controller isochronous Babble and buffer-overrun event-handling vulnerability.
Linux kernel xHCI isochronous Babble and buffer-overrun event 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.