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CVE-2024-36020 is a flaw in the Linux kernel i40e Ethernet driver’s virtual-function handling. A regression caused the affected function to maintain both an iteration variable and a virtual-function pointer as separate sources of state. Advancing the iterator did not update the pointer, but the code used them interchangeably. During reset races, the stale pointer could reference a different or unintended virtual function. The upstream fix removes the redundant iterator state and uses a single virtual-function pointer throughout the function to preserve pointer validity.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux i40e driver flaw in which a virtual-function variable may be used uninitialized.
Linux kernel i40e driver vulnerability involving a virtual-function variable that may be used uninitialized.
Linux kernel Intel i40e network-driver uninitialized virtual-function use flaw.
Linux kernel i40e network-driver flaw involving potential use of an uninitialized virtual-function variable.
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.