The SMB2_tcon function in fs/cifs/smb2pdu.c in the Linux kernel before 3.16.3 allows remote CIFS servers to cause a denial of service (NULL pointer dereference and client system crash) or possibly have unspecified other impact by deleting the IPC$ share during resolution of DFS referrals.
- http://www.ubuntu.com/usn/USN-2394-1
- https://github.com/Live-Hack-CVE/CVE-2014-7145