tree 234b4b6a034d7398be70b2ca7dd655de5aad864d
parent 29e2dd0d56ea0d6c4a95c080760e1cc748fb6f14
author Mateusz Jurczyk <mjurczyk@google.com> 1498737899 +0200
committer Marcel Holtmann <marcel@holtmann.org> 1498739877 +0200

Bluetooth: Add sockaddr length checks before accessing sa_family in bind and connect handlers

Verify that the caller-provided sockaddr structure is large enough to
contain the sa_family field, before accessing it in bind() and connect()
handlers of the Bluetooth sockets. Since neither syscall enforces a minimum
size of the corresponding memory region, very short sockaddrs (zero or one
byte long) result in operating on uninitialized memory while referencing
sa_family.

Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>