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CVE-2024-35854 is a use-after-free vulnerability in the Linux kernel mlxsw Spectrum ACL TCAM implementation. During delayed virtual-region rehash work, ACL filters are migrated between regions according to available hardware credits. The implementation treated a non-negative credit count as proof that migration had completed and destroyed the source region. A failed migration can also leave a non-negative credit count, causing the source region to be freed while filters still reference it. Subsequent ACL entry removal can dereference the freed region.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A possible use-after-free during rehashing in the Linux kernel mlxsw Spectrum ACL TCAM driver.
A possible use-after-free vulnerability during rehashing in the Linux kernel mlxsw Spectrum ACL TCAM code.
Linux kernel mlxsw Spectrum ACL TCAM rehash use-after-free vulnerability.
Linux kernel Mellanox Spectrum ACL TCAM rehash use-after-free 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.