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CVE-2024-43880 is a logic flaw in the Linux kernel mlxsw Spectrum ACL enhanced rule processing component. On Spectrum-2 and later ASICs, ACL masks may be managed in algorithmic or circuit TCAM regions. During periodic ACL-region rehashing and migration, the object-aggregation comparison callback compared masks while ignoring the TCAM-placement attribute. Recursive hint lookup could consequently resolve an object to one associated with a different TCAM type and assign nested object parents, a state unsupported by the objagg library. The condition triggers an objagg object-parent assignment warning in the kernel workqueue handling ACL TCAM virtual-region rehashing.
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Linux kernel mlxsw Spectrum ACL ERP flaw associated with object nesting.
Linux kernel mlxsw Spectrum ACL object nesting flaw.
Linux kernel mlxsw Spectrum ACL ERP object-nesting 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.