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CVE-2024-26586 is a stack-based memory-corruption vulnerability in the Linux kernel Mellanox Spectrum Ethernet switch driver, specifically its Spectrum ACL TCAM handling. When traffic-control filters are added, the driver associates ACL regions with a port ACL group and programs the group through the PAGT register. On Spectrum-2 and newer ASICs, firmware can report support for more than 16 ACLs per group, while the PAGT register layout accommodates only 16 entries. Creating filter rules that require more than 16 ACL regions in one group can cause mlxsw_sp_acl_tcam_group_update() to overrun stack-backed storage, resulting in kernel stack corruption.
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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.
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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.
Linux kernel stack-corruption issue in mlxsw spectrum_acl_tcam.
Linux kernel mlxsw Spectrum ACL TCAM stack-corruption vulnerability.
A stack-corruption vulnerability in the Linux kernel mlxsw Spectrum ACL TCAM component.
A stack-corruption vulnerability in the Linux kernel mlxsw spectrum_acl_tcam component, fixed by the kernel-rt update.
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.