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CVE-2022-3564 is a use-after-free vulnerability in the Linux kernel Bluetooth L2CAP subsystem. The flaw occurs in the l2cap_reassemble_sdu() reassembly path, where malformed or otherwise attacker-controlled L2CAP SDU processing can cause previously freed memory to be accessed.
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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.
27 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel Bluetooth L2CAP use-after-free.
Bluetooth L2CAP use-after-free during SDU reassembly.
A Linux kernel use-after-free vulnerability in the Bluetooth L2CAP SDU reassembly path.
A Linux kernel use-after-free vulnerability caused by l2cap_reassemble_sdu() in the Bluetooth L2CAP core.
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.