CVE-2026-80764Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's Bluetooth subsystem. A local user could exploit a use-after-free vulnerability in the `hci_event` component. This occurs when the `hci_cc_reset()` function clears Bluetooth Low Energy (LE) lists witho…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 5.5
none → medium
Last analysed / modified upstream
5.5 → 4.7
A flaw was found in the Linux kernel's Bluetooth subsystem. A local user could exploit a use-after-free vulnerability in the hci_event component. This occurs when the hci_cc_reset() function clears Bluetooth Low Energy (LE) lists without proper locking, allowing a debugfs reader to access freed memory. Successful exploitation could lead to memory corruption, potentially causing system instability or a denial of service.
kernel: Bluetooth: hci_event: fix LE list UAF on reset — rated Moderate by Red Hat. Released 2026-09-04, updated 2026-10-25.
Affected:
No fix planned:
Not affected:
Out of support scope
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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