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CVE-2022-3619 is a memory-leak vulnerability in the Linux kernel Bluetooth L2CAP implementation. Malformed or malicious Bluetooth packets can cause the L2CAP ACL-data receive handler, l2cap_recv_acldata, to retain memory that should be released. Repeated triggering can exhaust kernel memory resources and destabilize the host.
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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.
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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.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel Bluetooth L2CAP memory leak vulnerability.
Linux Bluetooth L2CAP memory leak.
Linux kernel Bluetooth L2CAP memory leak.
Memory leak in Bluetooth L2CAP ACL-data reception.
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.