A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC
Controller Interface (NCI) in the Linux kernel. This flaw could allow a
local attacker with user privileges to cause a data race problem while the
device is getting removed, leading to a privilege escalation problem.

Lin Ma discovered that the NFC Controller Interface (NCI) implementation in
the Linux kernel contained a race condition, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.