Ubuntu Security Notice 5783-1 - Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
ded75e8ee910faa891b2c78070904a17a49f1586e664163f955990a82dbda6f2