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CVE-2022-49111 is a use-after-free vulnerability in the Linux kernel Bluetooth subsystem. Handling HCI_EV_DISCONN_PHY_LINK_COMPLETE calls hci_conn_del without verifying that the connection is an AMP_LINK or properly notifying upper layers through hci_disconn_cfm. Connection cleanup can consequently free an HCI channel while upper layers retain references to it. A subsequent L2CAP send reaches hci_send_acl and reads freed memory. The recorded KASAN diagnostic identifies an eight-byte read from a freed allocation.
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No public exploit code observed for this vulnerability.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability in the Linux kernel Bluetooth function hci_send_acl. Red Hat addresses it in advisory RHSA-2025:10673, issued July 9, 2025, with kernel packages version 4.18.0-372.151.1.el8_6 for affected RHEL 8.6 support streams. The advisory rates the update Important and requires a reboot for the update to take effect. Specific exploitation conditions and impacts are not provided.
A use-after-free vulnerability in the Linux kernel Bluetooth hci_send_acl functionality, fixed by the Red Hat Enterprise Linux 8.2 AUS kernel 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.